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The Silicon Nitride Substrate You Need for Advanced Digital Devices

PCBMay is pleased to announce the addition of Silicon Nitride Substrate to our list of product specialties. We employ updated PCB procedures for your Silicon Nitride Substrate. Specifically, we use Si3Ni4 with Via-in-Pad, VIPPO technology, Press-fit and other advanced PCB techniques.

High-power applications are all supported by these PCB methodologies. These items are unquestionably necessary in your end-device.

Take advantage of our excellent Silicon Nitride Substrate PCBs right now!

Types of Silicon Nitride SubstrateTo Serve Your Needs

Power Module Silicon Nitride Substrate PCB

Our Power Module Silicon Nitride Substrate PCB enables advanced interconnects. This item is intended for use in energy producing projects. Our facilities are capable of producing high count multilayers.

Thin Silicon Nitride Substrate PCB

Thin Silicon Nitride Substrate PCBs are required for mmWave applications. Ideally, these types of PCBs work best when manufactured by a reputable fabricator.  When you trust PCBMay with Thin or Transparent PCBs, you’re very assured.

Electronic Module Silicon Nitride Substrate PCB

The Electronic Module Silicon Nitride Substrate PCB productss are widespread among large semiconductor manufacturers. As your dedicated OEM and EMS provider, we can produce these types of PCBs.

Ceramic Silicon Nitride Substrate PCB

You can give us the opportunity to expedite your order for Ceramic Silicon Nitride Substrate PCB. Fine Pitch PCB applications require these types of PCBs, which facilitate digital advancement.

Thick Silicon Nitride Substrate PCB

Thick Silicon Nitride Substrate PCB, which fuels a range of functions, is available as High Current or Thick PCB of 2 oz. They’re also employed in some automotive applications.

High Tg Silicon Nitride Substrate PCB

Higher heat tolerance is possible with High Tg Silicon Nitride Substrate PCB. Energy meter PCBs and solar PCBs are examples of these PCBs. They’re usually seen in commercial equipment.

PCBMay—Significantly Excellent Silicon Nitride Substrate Supplier

Instead of choosing between quality and price, why not have both? You get the best of both worlds with PCBMay. Our Silicon Nitride Substrate, which is less expensive, is ideal for all of your high-tech needs.

In this video, we demonstrate why we are a reliable PCB fabricator from China. Our staff members are experts. In addition, we have in place very clean and well-maintained PCB production equipment.

We can create the Silicon Nitride Substrate PCB you demand!

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Aluminium Nitrate Substrates PCB buyers buy also Alumina PCB or AlN PCB. They’re highly similar products.
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Silicon Nitride Substrate PCB Production Details As Following Up

Lamination
Brown Oxide
Etching
PTH Line
VCP Plating   AOI  Exposure E-Test
ItemCapability
Layer Count1-40layers
Base MaterialKBShengyiShengyiSF305FR408FR408HRIS410FR406GETEK370HRIT180ARogers4350BRogers4000PTFE Laminates(Rogers seriesTaconic seriesArlon seriesNelco series)Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
Board TypeBackplane、HDI、High multi-layer 、blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
Board Thickness0.2-5.0mm
Copper ThicknessMin. 1/2 OZ, Max. 10 OZ
PTH Wall25um(1mil)
Maximum Board Size1100*500mm(43”*19”)
Min laser drilling size4mil
Min. Spacing/Tracing2.7mil/2.7mil
Solder MaskGreen, Black, Blue, Red, White, Yellow,Purple matte/glossy
Surface TreatmentFlash gold(electroplated gold)ENIGHard goldFlash goldHASL Lead freeOSPENEPIGSoft goldImmersion silverImmersion TinENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finger.
Min. Annular Ring3mil
Aspect ratio10:1(HASL Lead freeHASL LeadENIGImmersion TinImmersion silverENEPIG);8:1(OSP)
Impedance control±5ohm(<50ohm), ±10%(≥50ohm)
Other TechniquesBlind/Buried Via
Gold Fingers
Press Fit
Via in Pad
Electrical Test

Here there’re many laminate material datasheets, they’re useful and helpful for you, please see them:

SUPPLIERPCB LAMINATETYPEMATERIAL DATASHEETTGTDDK(1MHZ)DK(1GHZ)DK(10GHZ)
KBKB-6160FR4DOWNLOAD1353054.35
KB-6160AFR4DOWNLOAD1353054.35
KB-6160CFR4DOWNLOAD1353144.7
KB-6150
KB-6150C
FR4DOWNLOAD1323054.6
KB-6164FR4DOWNLOAD1423304.8
KB-6164FFR4DOWNLOAD1453404.8
KB-6165FFR4DOWNLOAD1503464.8
KB-6167FFR4DOWNLOAD1703494.8
SHENGYIS1141FR4DOWNLOAD1353104.6
S1141KFFR4DOWNLOAD1403504.7
S1000FR4DOWNLOAD1553354.9
S1170FR4DOWNLOAD1703354.6
S1000-2FR4DOWNLOAD1703354.8
S1155FR4DOWNLOAD1353704.7
ITEQIT-158FR4DOWNLOAD1503404.6-4.8
IT-180FR4DOWNLOAD1803504.5-4.7
TUCTU-768FR4DOWNLOAD1803504.3-4.44.3
TU-872Modified EpoxyDOWNLOAD2003403.8-4.03.8
ROGERSRO 3003Cer/PTFEDOWNLOAD5003
RO 3010Cer/PTFEDOWNLOAD50010.2
RO 4003Hydrocarbon/CerDOWNLOAD>2804253.38
RO 4350BHydrocarbon/CerDOWNLOAD>2803903.48
RT/duroid 5880PTFE/GlassDOWNLOAD5002.2
ISOLAPolyclad 370HRFR4DOWNLOAD1703404.8-5.1
FR406-HRFR4DOWNLOAD1903253.913.863.81
FR408-HRFR4DOWNLOAD2003603.723.693.65
P96PolyimideDOWNLOAD2604163.783.73
HitachiMCL-BE- 67GModified EpoxyDOWNLOAD1403404.94.4
MCL-E-679FFR4DOWNLOAD1703504.2-4.44.3-4.5
MCL-LX-67YSpecial LaminateDOWNLOAD185-195325-3453.4-3.6
NelcoN4000-13Modified EpoxyDOWNLOAD210-2403653.73.6
N4000-13EPModified EpoxyDOWNLOAD210-2403503.43.2
N4000-13SIModified EpoxyDOWNLOAD210-2403503.43.2
N4000-13EP SIModified EpoxyDOWNLOAD210-2403503.43.2
TaconicTLX-6PTFEDOWNLOAD2.65
TLX-7PTFEDOWNLOAD2.6
TLX-8PTFEDOWNLOAD2.55
TLX-9PTFEDOWNLOAD2.45
RF35PTFEDOWNLOAD<3153.53.5
TLC-27PTFEDOWNLOAD2.75
TLC-30PTFEDOWNLOAD3
TLC-32PTFEDOWNLOAD3.2
ArlonArlon 25NCerDOWNLOAD2603.38
Arlon 25FRCerDOWNLOAD2603.58
Arlon 33NPolymideDOWNLOAD>2503534
Arlon 35NPolymideDOWNLOAD>2503634.2
Arlon 85NPolymideDOWNLOAD2503874.2
StablcorST325DOWNLOADThermal conductivity:75w/m.k(with 1oz copper)
ST10DOWNLOADThermal conductivity:325w/m.k(with 1oz copper)
PanasonicR-1566WFR4DOWNLOAD1403304.954.74.65
VentecVT-901PolymideDOWNLOAD2503904.2-4.54.0-4.3
VT-90HPolymideDOWNLOAD2503904.2-4.54.0-4.3
Bergquistht-04503DOWNLOADThermal conductivity:2.2w/m.k(with 1oz copper)

Delivery

PCBMay offers flexible shipping methods for our customers, you may choose from one of the methods below.

1. DHL

DHL offers international express services in over 220 countries.
DHL partners with PCBMay and offers very competitive rates to customers of PCBMay.
It normally takes 3-7 business days for the package to be delivered around the world.

DHL Forwarder

2. UPS

UPS gets the facts and figures about the world’s largest package delivery company and one of the leading global providers of specialized transportation and logistics services.
It normally takes 3-7 business days to deliver a package to most of the addresses in the world.

UPS Forwarder

3. TNT

TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.

TNT Forwarder

4. FedEx

FedEx offers delivery solutions for customers around the world.
It takes 4-7 business days to deliver the packages to the hands
of our customers.

Fedex Forwarder

5. Air, Sea/Air, and Sea

If your order is of large volume with PCBMay, you can also choose
to ship via air, sea/air combined, and sea when necessary.
Please contact your sales representative for shipping solutions.

Note: if you need others, please contact your sales representative for shipping solutions.

On our website you can use the following payment methods:

Telegraphic Transfer(TT): A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. It’s very convenient to transfer.

Bank/Wire transfer: To pay by wire transfer using your bank account, you need to visit your nearest bank branch with the wire transfer information. Your payment will be completed 3-5 business days after you have finished the money transfer.

Paypal: Pay easily, fast and secure with PayPal. many other credit and debit cards via PayPal.

Credit Card: You can pay with credit card: Visa, Visa Electron, MasterCard, Maestro.

    Go to PCBMay for Incomparable Silicon Nitride Substrate PCB

    Please get in touch with our company if you have any PCB key challenges. With PCBMay, you can rest assured that your PCB is fully functional. Interconnection of PCB stack-up layers is no longer a concern if you partner with us.

    • Silicon material for excellent bending resistance
    • Even in the most difficult conditions, it will not break.
    • Thermal conductivity is good, and it cools and heats quickly
    • Moisture and oxidation damage prevented
    • Suitable for use alongside power applications and Power PCBs

    We will make your life easier when it comes to PCBs and PCB concerns. Let’s start with your PCB layout. Even if you desire a sophisticated Multilayer PCB but don’t know where to begin, we can assist you by applying Silicon Nitride Substrate.

    After 1-2 hours, our engineers will be able to respond to your technical questions. We will support you with any PCB details so that your PCB design is flawless! Our employees have more than ten years of experience in the PCB sector, so they are well-qualified to answer Silicon Nitride Substrate questions.

    If you’re looking to manufacture energy-generating PCBs, RF application PCBs, or military PCBs, you’ve come to the right place. Well, we can design that with new software! Our engineering team, for example, is capable of designing in Altium or Kicad.

    Assume you already have a PCB design mapped out. If that’s the case, we can expedite your PCB fabrication!

    Are you persuaded yet? Don’t wait any longer! Give us a call right away! We are available at all times.

    If you order fast, your Silicon Nitride Substrate PCB is on its way to you.

    Silicon Nitride Substrate | The Ultimate FAQ Guide

    Are you worried about thermal performance in your power electronic devices?

    Using Silicon Nitride substrate is a reliable solution to this problem in modern days. This substrate brings about the best performance of electronic components in terms of electrical, thermal, and mechanical properties.

    PCBMay is a well-known fabricator and supplier of Silicon Nitride substrates in China. We can deliver the circuit board substrate as per your demand at convenient prices.

    Do you have enough ideas about the applications and features of Si3N4 substrates?

    Don’t worry. This FAQ guide will cover the ins and outs of this PCB substrate. We hope it will help upgrade your device’s efficiency to the next level.

    Let’s make a move.

    What Is Silicon Nitride Substrate?

    Silicon Nitride substrate is an effective material whose principal material is Silicon Nitride. It promotes the functionality of different elements used in power electronics. This substrate offers high bending strength compared to other PCB substrates.

    That’s why its acceptability is very high and manufacturers remain assured of the thermal or mechanical effectiveness of electronic components. Silicon Nitride structure is a highly stable and commercially important compound.

    This substrate ensures outstanding thermal conductivity and fracture toughness in various electronic applications, especially in power modules.

    The standard size of the substrate of Silicon Nitride is 5.5”-7.5”. You can find tolerance of around ±1.0% and NLT:±0.1 mm in the case of substrate size. Besides, its thickness varies from 0.25mm to 0.65mm where tolerance is around 10%.

    Usually, Si3N4 substrates have come out as a dependable competitor of traditional PCB substrates. Their amazing robustness and thermal efficiency improve the circuit board’s functional properties to a great extent.

    Watch this video about the Silicon Nitride compound:

     

    You can find various Si3N4 substrates in the present market that can meet up your demands. The most used Si3N4 substrates are-

    Power Module Si3N4 substrates

    These substrates are capable of handling advanced interconnects. Besides, you can incorporate them into energy-producing electrical projects where the layer count is high.

    Electronic Module Si3N4 substrates

    Silicon Nitride PCB substrates are worthwhile for high-volume semiconductor productions. In the case of both OEM (Original Equipment Manufacturing) and ODM (Original Direct Manufacturing) services, electronic module Si3N4 substrates always include an additional dimension.

    Thin Si3N4 substrates

    If you are puzzled with your wave application of mm ranges, you can use thin Silicon Nitride substrates. A well-fabricated PCB substrate can provide the optimum output of the high-frequency signal transmission.

    Thick Si3N4 substrates

    These substrates are perfect for high-current PCB applications, such as the automotive industry. Silicon Nitride with 2 Oz copper is beneficial to handle high current loads that ensure the integrity of electronic devices.

    High TG Si3N4 substrates

    Another vital type of Si3N4 substrate is the high TG substrate. Do you think that higher heat tolerance is impossible in power electronics?

    High TG silicon nitrides ensure sufficient tolerance against thermal pressures. These substrates have extensive use in commercial equipment like Energy Meter PCBs, Motor PCBs, Solar PCBs, etc.

    Ceramic Si3N4 substrates

    If you desire digital improvement in your devices, ceramic Si3N4 substrates are eligible for this issue.  Normally, you can find ceramic Si3N4 substrates in PCB pitches.

    Silicon Nitride Substrate For Power Electronic Applications

    Silicon Nitride Substrate For Power Electronic Applications

    What Are The Silicon Nitride Substrate Properties?

    Some electronic applications have been suffering from power and current management. Silicon Nitride Substrates have properties useful for high power circuits. Their most noteworthy properties are listed below for your convenience. Let’s have a look.

     

    SubjectValueUnitTest Process
    Basic MaterialSi3N4
    ColorGray
    Fracture Toughness6.5MPaIF Method
    Bending Strength800MPa3-point method
    Bulk Density3.22g/Cm3
    Vickers Hardness15GPa
    Modulus Of Elasticity300GPa
    CTE2.640-400⁰C
    Dielectric Constant7.81 MHz
    Thermal Conductivity85W/mK25⁰C
    Specific Heat680J/Kg.K25⁰C
    Dissipation Factor0.41 MHz
    Dielectric Strength More than 15KV/mmDC
    Volume Resistivity >Ohm. cm25⁰C

    Highly Effective Silicon Nitride Substrates

    Highly Effective Silicon Nitride Substrates

    If you notice the values of Silicon Nitride’s properties, you can find some important points that make this substrate different from others. Such as-

    • Its bending strength is significantly high.
    • Its thermal conductivity is quite impressive compared to Aluminum Nitride substrates.
    • In terms of Coefficient of Thermal Expansion (CTE), this substrate is almost the same as Silicon.
    • Its insulation, dielectric properties, volume resistivity, etc are commendable enough to be compatible with the power components of modern electronics.

    So, it’s very clear that Silicon Nitride substrates provide top-notch features when used in electronic appliances. Their electrical, thermal, and mechanical properties are highly effective to upgrade the circuit’s functionality.

    Is Silicon Nitride An Insulator?

    Yes. Silicon Nitride acts as an insulator. It happens when Si3N4 comes with low conductivity and high resistance. Usually, you can find Silicon Nitride Insulator substrate in RF heating appliances.

    This insulator delivers a higher thermal shock resistance than other substrates in rigid devices.

    Silicon Nitride Ceramic Substrates

    Silicon Nitride Ceramic Substrates

    Why Is Silicon Nitride Substrate A Ceramic?

    Silicon Nitrides have similar properties like high rigidity, worthwhile wear resistance, and high mechanical strength as ceramic substrates. Besides, they show effective thermal conduction in power circuits.

    That’s why Silicon Nitride substrates are considered ceramic.

    Different types of Si3N4 ceramic substrates are available in the market. Such as-

    • Hot Pressed Si3N4
    • Sintered Reaction Bonded Si3N4
    • Sintered Si3N4

    Thermally Effective Si3N4 Substrate

    Thermally Effective Si3N4 Substrate

    Why Does Silicon Nitride Substrate Have A High Melting Point?

    Usually, chemical compounds with a huge size have a high melting temperature.

    Silicon Nitride has a giant structure. Here, silicon creates a covalent bond with Nitrogen atoms that lead to a gigantic form. So, you need to apply high heat to break the covalent structure between Silicon and Nitride. This is almost 1900⁰C.

    That’s why Si3N4 substrates have a high melting point.

    Silicon Nitride With High Melting Point

    Silicon Nitride With High Melting Point

    What Is The Hardness Of Silicon Nitride Substrate?

    Silicon Nitride substrates show excellent mechanical strength in different applications. Their Vicker hardness is very high (more than 15 GPa). Besides, Si3N4 provides around 800 MPa binding strength. These features indicate a worthwhile hardness of Silicon Nitride substrates.

    Robust Substrate Of Silicon Nitride Compound

    Robust Substrate Of Silicon Nitride Compound

    What Are The Comparisons Between Silicon Nitride Substrates And Other Ceramics?

    Silicon Nitride Substrates ensure improved functionality in high-power devices. But there are so many substrates used in this sector, along with Si3N4 substrates. Such as Aluminum Nitride (Al2O3), Silicon carbide (SiC), etc. All of these PCB substrates deliver excellent performance in particular fields.

    So, how can you compare them?

    Don’t worry. We are here with a comparative analysis between different substrates and ceramics used in power electronics.

    The performance of different substrates varies in the case of some crucial factors. Like-

    Thermal Conductivity

    One of the most crucial factors when choosing between ceramic substrates is thermal conductivity. In the case of power circuits, heat dissipation is a critical issue. The entire performance depends on this subject to a large extent.

     

    SubstrateThermal Conductivity
    Alumina (Al2O3)24
    AlN 180
    Si3N4 90
    ZTA28

     

    You can see that AlN delivers a higher thermal conduction capacity than Si3N4 substrates. But if you consider thermal conductivity to reliability ratio, you have to give your vote to Si3N4 substrates.

    While comparing thermal conduction with Alumina or ZTA (Zirconia Toughened Alumina), Si3N4 substrates provide superior performance. That’s why you can achieve better toughness and bending strength in substrates having Si3N4.

    Reliability

    Substrate reliability is another vital issue for manufacturers. You can check the reliability concerning the number of cycles required to identify delamination and conchoidal fractures.

     

    SubstrateThermal Cycles For Delamination
    Alumina (Al2O3)55
    AlN 35
    Si3N4 5000
    ZTA110

    That means Silicon Nitride has no competitor in this event. This substrate offers around 50 times higher reliability compared to other ceramics. Its high fracture toughness is also important to promote reliability to the next level.

    Binding Strength

    The binding strength of a ceramic substrate indicates how strong the bond exists between them.

    SubstrateBinding Strength
    Alumina (Al2O3)450
    AlN 450
    Si3N4  AMB650
    ZTA DBC700

     

    This chart shows us that Silicon Nitride AMB (Active Metal Brazing) has slightly lower binding energy than ZTA DBC (Direct Bonded Copper). But its value is also effective for high-class power equipment.

    Thermal Performance

    This is arguably the most essential part of this topic. Thermal management is a challenging task in power modules. That’s why the utility of substrates mostly depends on thermal performance.

     

    SubstrateThermal Resistivity (K/W)Range (mm)
    Alumina (Al2O3)0.360.63
    AlN 0.260.63
    Si3N4 0.210.32
    ZTA0.200.32

     

    Here, the lower value of thermal resistivity in the case of Si3N4 substrates indicates their high thermal conduction capacity. That means these substrates deliver superb performance in thermal resistivity with great efficiency. This feature improves their reliability to a certain degree.

    Fracture Toughness

    This factor defines the robustness of ceramic substrates. Its higher value is a dependable indicator of reliable PCB substrates.

     

    SubstrateFracture Toughness
    Alumina (Al2O3)3.8-4.2
    AlN 3-3.4
    Si3N4  AMB6.5-7
    ZTA DBC4.5-5

     

    You can see from this chart that Si3N4 substrates ensure higher fracture toughness than other ceramics. That means  Silicon Nitride is resistant to mechanical forces, like vibrational forces.

    Life Cycle Of Power Module

    Si3N4 substrates ensure an extended lifespan of power modules. Their excellent thermal efficiency and improved reliability play a significant role in increasing the operating life of a power device.

    Besides, Si3N4 substrates have sufficient robustness in electronic products. That means these items have commendable resistance against external forces like moisture, dust, water contamination, etc. All of these indicate that you can enjoy a hassle-free service of electronic appliances having Si3N4 substrates for quite a long period.

    Comparison Between Thermal Conductivity Of Si3N4 And AlN Substrates

    Comparison Between Thermal Conductivity Of Si3N4 And AlN Substrates

    It is clear from the analysis given above that a well-structured Silicon Nitride provides superb services in different aspects.

    That’s why you can rely on this substrate so that you can experience improved functionality and durability of electronic circuits.

    What Are The Significant Applications Of Silicon Nitride Substrate In Power Electronics?

    Silicon nitride substrate has versatile applications in the power industry. Do you know what Silicon Nitride is used for?

    This PCB material is highly applicable in the following sectors-

    Automotive Industry

    Ceramic Si3N4 substrates have significant use in the automotive industry. High-frequency and high-speed automobiles deliver amazing durability and functionality due to being composed of Silicon Nitride substrates.

    Moreover, these substrates are highly applicable in industrial appliances like engine components, cutting equipment, bearings, etc.

    Power Amplifier

    Si3N4 substrates promote the amplification capability of power amplifiers. As they can handle high heat situations and resist excessive thermal forces, you can use them in antenna services.

    Besides, these substrates ensure quality signal transmission in high-power PCB applications.

    Heat Sink

    Silicon nitride is a good medium that dissipates heat swiftly. That’s why it has extensive use in heat sink productions.

    Heat Spreader

    Because of high thermal conductivity, Si3N4 substrates are useful as heat spreaders. Their low thermal resistivity improves the thermal management of power circuits to the next level.

    Semiconductor

    Thin Si3N4 substrates are effective for semiconductor productions on a large scale. These substrates improve the charge carrying capacity of different semiconductors. This feature ultimately promotes the transistor’s integrity and overall functional properties.

    Application Of Silicon Nitride Substrate

    Application Of Silicon Nitride Substrate

    How Does Silicon Nitride Substrate Handle High Temperatures?

    Silicon nitride substrates are reputable for their superb thermal management. These substrates handle high temperatures with great efficiency. Do you know the reason behind it?

    Let’s find out.

    Si3N4 substrates have superior thermal conductivity. Usually,  power components produce high power during their operations and suffer a lot. But Silicon nitride materials can dissipate additional heat efficiently to the heat sink. That’s why no significant complication occurs when power components function.

    Besides, Silicon nitride has a high melting point. That means it can tolerate more heat compared to other ceramic substrates. All of these matters make Si3N4 substrates a worthwhile option for upgrading power circuits.

    Temperature Control Of Si3N4 Substrates

    Temperature Control Of Si3N4 Substrates

    What Are The Advantages Of Silicon Nitride Substrate?

    Silicon Nitride substrate has a lot of advantageous features in practical cases.

    Noise Reduction Of Silicon Nitride In Polymer Substrates

    Noise Reduction Of Silicon Nitride In Polymer Substrates

    The most noteworthy benefits of this substrate are-

    • Power Management

    Si3N4 substrates enable your device’s circuit to handle high power components.

    • High Temperatures Control

    These PCB substrates control temperature change very efficiently because of their high thermal conductivity.

    • Excellent Heat Distribution

    In the case of multilayer power components, Si3N4 substrates ensure smooth heat distribution.

    • Improved Reliability

    Silicon Nitride improves the reliability of electronic products. You can use them in versatile fields due to their high-class usability.

    Besides, it helps reduce noise and EMI effects during signal transmission in modern communication devices.

    • Worthwhile Fracture Toughness

    Their fracture toughness indicates their robust nature and usefulness in semiconductor-based electronic applications. They incorporate a strong binding force in circuit boards with a high layer count.

    • Reliable Impedance Stability

    Silicon Nitride relieves you from the tension of maintaining electrical stability. This substrate maintains controlled impedance and dielectric features with superb reliability.

    • Long Lifespan

    Si3N4 substrates improve the durability of electrical components that lead to longer shelf life.

    Si3N4 Substrates Grating Coupler

    Si3N4 Substrates Grating Coupler

    What Are The Life Cycles Of Silicon Nitride Substrates?

    Silicon Nitride substrates deliver longer life cycles in power circuits. Their high rigidity and resistance against corrosion ensure almost 5000 life cycles whereas AlN provides 35 life cycles in power modules.

    How Does Dielectric Constant Affect Silicon Nitride Substrate?

    Dielectric constant or relative permittivity is a crucial factor in electronic applications. This is related to the medium where electric charges move. It refers to the ratio of forces between two charges staying at a certain distance in free space and a particular medium.

    Dielectric constant affects Silicon nitride substrate in many ways. Such as-

    • Its lower value ensures a low dissipation factor or loss tangent in PCB substrates.
    • It influences the dielectric strength to a large extent. Usually,  a low DK value is preferable for higher insulation, whichmeans high dielectric strength.
    • The DK value of the Si3N4substrate is considered with great attention while controlling impedance.
    • It influences the thermal performance of PCB substrates made of Si3N4compounds.

    Dielectric Constant Of PCB Substrate

    Dielectric Constant Of PCB Substrate

    Higher DK causes deficiency in electronic applications, especially in power modules. So, you must focus on using Si3N4 substrates offering a low dielectric constant.

    Check this video on how to measure DK value in PCB substrates:

     

    Is Silicon Nitride Crystalline?

    Silicon Nitride substrates have two crystalline structures.

    • α-Si3N4
    • β-Si3N4

    Between these two, α-Si3N4 substrates have a hexagonal shape where you can find a β-Si3N4 substrate in phenacite structure.

    How To Test Silicon Nitride Substrate?

    It is possible to test Silicon nitride substrates manually and automatically. But automated processes are more effective for delivering the best report. The most reputable inspections of these PCB substrates include-

    Automated Optical Inspection (AOI)

    This test checks the electrical and mechanical properties of substrates. During the AOI test, a well-made machine takes photographs of Si3N4 substrates from different sides. This machine compares 2D and 3D images with an ideal substrate.

    That’s how the AOI test can identify the defects. This test mainly focuses on finding missing components, improper connections, etc. You can get a trustworthy result through the AOI test, but it is costly. So, you can optimize your cost by using this inspection in the Substrate used in the production of power modules.

    Automated X-ray Inspection (AXI)

    The AXI test is another dependable automated process to identify faults in Si3N4 substrates. It is primarily viable to check dimensional faults like improper substrate size, thicknesses, deficiency in thermal tolerances, etc.

    Here, the. X-ray penetrates the substrate and a skilled inspector checks the critical portions of this PCB material. This test is also expensive but effective.

    Si3N4 Substrates Inspection

    Si3N4 Substrates Inspection

    Except for these automated tests, you can depend on manual inspections. Besides, thermal tests, peel tests, etc are useful to check the thermal management of Si3N4 substrates. You can choose a PCB manufacturer that can take care of substrate testing without causing any difficulties.

    Which Things Do You Need To Consider While Choosing A Reliable Silicon Nitride Substrate Provider?

    Silicon nitride substrate is a crucial element in the production of electronic components. You have to ensure the best result of using this PCB substrate so that it can match your requirement.

    In that sense, the necessity of choosing a dependable substrate provider is beyond question. Only an experienced and skilled fabricator can bring out the desired output from this substrate.

    But how do you find a reliable Si3N4 substrate provider?

    You have to focus on some points that will provide a clear view of the fabricator’s capability. Such as

    Experience

    The fabrication process of any kind of substrate requires immense experience with sound skill. Si3N4 substrate is not a different case. You must choose a fabricator who has enough knowledge of different aspects of machining and layering of this substrate.

    Besides, technical staff should be skilled enough to handle minor to major problems of the fabrication process. You can get an idea about the experience of Si3N4 substrate providers from their website and customer review. If you get a positive vibe about a manufacturer from these sources, you can go for that.

    Test Equipment

    Si3N4 substrates need to be gone through several tests so that you know about their functional properties properly. That means test equipment plays a crucial part in this matter.

    It is necessary to select a substrate provider that offers sufficient testing facilities with well-planned factory services. If your manufacturer can conduct inspections on their own, it will save the production cost to a certain degree.

    But you can rely on OEM and ODM services in the case of not having equipment facilities. In that case, you should be determined about its ability to deliver work within the lead time.

    Cost Performance

    This is another important feature when you are choosing a Silicon Nitride substrate provider in China. You can’t afford a product that is economically not viable. To be sure about this issue, you can check a fabricator’s cost-to-performance ratio. Always try to get the best service within your budget and capability.

    Reliability

    How can you check the reliability of a PCB substrate provider?

    If that fabricator has IPC and RoHS certificates, you can take it into account. Moreover,  you need to check its component sourcing, assembly services, collaboration capacity, etc. If your fabricator has positive reports on all of these factors, your choice will undoubtedly be superb.

    Reliable Si3N4 Substrate Fabrication

    Reliable Si3N4 Substrate Fabrication

    We have been providing quality service for Si3N4 substrate fabrications for around 15 years. Our services are worthwhile for high-volume power electronics and commercial productions. You also get satisfied with our cost performance. So, contact us immediately to get your quote and ensure the best Si3N4 substrate for your projects.

    Conclusion

    This is all about Silicon Nitride substrate. We hope that you have got answers to all of your queries from this FAQ guide. This substrate improves the thermal conductivity and dielectric properties to a large extent, with maintaining mechanical stability.

    If you want to fulfill your high-tech need, the incorporation of Si3N4 substrates is the most suitable option. PCBMay provides superior service in the case of Si3N4 substrate fabrication and machining. Contact us in case you have more queries about this subject and get a hassle-free fabrication service.

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