Your One-Stop Hard Gold PCB Manufacturer in China

If you are searching for a reliable hard gold PCB supplier, PCBMay is your best partner in China. Specializing in the PCB industry for over ten years, we can provide the ultimate solution to your business need.

  • Provide world-class hard gold PCB products
  • Complete service for your hard gold PCB development
  • Professional engineers and technical staff
  • Offer 24/7 tech support
Get Our Best Quotation

Hard Gold PCB is Your Best Choice for Your Project

PCBMay hard gold PCBs are ideal for broad applications across industries. Here at PCBMay, you can find what you exactly need in our broad selection. For many years of engagement in PCB manufacturing, we can provide quality solutions for you. Furthermore, you can also customize hard gold PCB with your design. You can contact our support team to get some guides.

Types of Hard Gold PCB Meet Your Requirements

Selective PCB Hard Gold Plating (1)

PCBMay selective PCB hard gold plating has no MOQ requirement. We can handle small to large volume orders flexibly on technical requirements like material, surface finish treatment, etc.

Full Body Hard Gold PCB

PCBMay full-body hard gold PCB is available in two material options – FR408HR and FTG-8000. ISO and ROHS approved. We will cater a total solution for your PCB requirements.

Hard Gold Plating for Edge Connector

Hard gold plating for edge connector copper thickness 0.3oz-3oz, Min. Hole Size: 0.1mm, Solder mask color: yellow, black, white, red, green, and blue. We will offer a one-stop service.

Hard Gold PCB with Board Edge Plated

Hard gold PCB with board edge plated base materials are FR-4, Rogers, Cem-3, and Aluminum. Board Thickness: 0.2mm-6mm, Available in hard gold surface finishes.

FR4-4L Hard Gold PCB (1)

FR4-4L hard gold PCB board thickness is 1.6mm, Min. Hole Size: 0.3mm, Min. Line Spacing and width: 6mil, Surface finishing: Immersion Gold (2u”), Copper Thickness: 3OZ

Hard Gold Plating PCB Circuit Board

PCBMay hard gold plating PCB circuit board copper thickness ranging from 0.4-2mil (10-50um). Solder mask colors are white, black, yellow, green, blue, and red.

Why Choose PCBMay for Your Hard Gold PCB

Since 2008, PCBMay dedicates to manufacture and supply high-quality hard gold PCB. We provide from low, medium, and high mix hard gold PCB quantity. We offer authentic board design, fabrication, and assembly service.

With a professional team and high technology, PCBMay can provide on-time and professional hard gold PCB solutions. Being an ISO9001 certified factory, we pay close attention to the quality and detail of hard gold PCB.

VPC Plating Line

Related Hard Gold PCB Boards

10L High Tg Hard Gold PCB (1)
10L High Tg Hard Gold PCB
10L High Tg hard gold PCB base material is FR-4, Board Thickness: 1.6mm, Min. Line Width: 4mil(0.1mm), Solder mask color: black, yellow, red, white, and blue.
Printed Circuit Board with Hard Gold Thickness
Printed Circuit Board with Hard Gold Thickness
Printed circuit board with hard goal thickness number of layers: 6, Min. Hole Size, Spacing, and Width: 0.1mm, Board thickness is 1.6mm, and HASL surface finishing.
10 Layer Gold Finger Hard Gold PCB (1)
10 Layer Gold Finger Hard Gold PCB
10-L gold finger hard gold PCB material is FR4. Silkscreen: white, Solder mask: green, Available in multi-layer. Perfect for universal application.
FR4-4L TG180 Hard Gold PCB
FR4-4L TG180 Hard Gold PCB
FR4-4L TG180 solid gold PCB board thickness:1.6mm, in. Hole Size: 0.3mm, Min. Line Width: 6mil, Surface Finishing: Immersion Gold (2u"). MOQ is one pc.
4Layer FR4 Hard Gold PCB Print Circuit Board
4Layer FR4 Hard Gold PCB Print Circuit Board
4layer FR4 hard gold PCB print circuit board thickness: 1.6mm, Min. Line Width: 3mil, 0.075mm/3mil, 8-layers, Color: green, white, black, blue.
Rogers4350b Flash Hard Gold PCB Circuit Board
Rogers4350b Flash Hard Gold PCB Circuit Board
Rogers4350b flash hard gold PCB circuit board base material is FR4. Board thickness: 1.6mm, Min. Line Width:3mil, Min. Hole Size: 0.25mm, and Min. Line Spacing: 0.003".
40u” Enig Gold Finger Hard Gold PCB
40u” Enig Gold Finger Hard Gold PCB
40u” Enig gold finger hard gold PCB is applicable for universal use. Layers available in range 1-30 layers. Surface finishing is HASL. The minimum order requirement starts at 1pc.
Multi-layer FR4 PCB with Hard Gold Plating
Multi-layer FR4 PCB with Hard Gold Plating
Multi-layer FR4 PCB with hard gold plating available 1-60 Layers. The silkscreen options available are black and white; the Solder mask colors are green, yellow, and blue. ISO and ROHS certificated.

Hard Gold PCB Production Details As Following Up

Lamination
Brown Oxide
Etching
PTH Line
VCP Plating   AOI  Exposure E-Test
Item Capability
Layer Count 1-40layers
Base Material KBShengyiShengyiSF305FR408FR408HRIS410FR406GETEK370HRIT180ARogers4350BRogers4000PTFE Laminates(Rogers seriesTaconic seriesArlon seriesNelco series)Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
Board Type Backplane、HDI、High multi-layer 、blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
Board Thickness 0.2-5.0mm
Copper Thickness Min. 1/2 OZ, Max. 10 OZ
PTH Wall 25um(1mil)
Maximum Board Size 1100*500mm(43”*19”)
Min laser drilling size 4mil
Min. Spacing/Tracing 2.7mil/2.7mil
Solder Mask Green, Black, Blue, Red, White, Yellow,Purple matte/glossy
Surface Treatment Flash 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 Ring 3mil
Aspect ratio 10:1(HASL Lead freeHASL LeadENIGImmersion TinImmersion silverENEPIG);8:1(OSP)
Impedance control ±5ohm(<50ohm), ±10%(≥50ohm)
Other Techniques Blind/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:

SUPPLIER PCB LAMINATE TYPE MATERIAL DATASHEET TG TD DK(1MHZ) DK(1GHZ) DK(10GHZ)
KB KB-6160 FR4 DOWNLOAD 135 305 4.35
KB-6160A FR4 DOWNLOAD 135 305 4.35
KB-6160C FR4 DOWNLOAD 135 314 4.7
KB-6150
KB-6150C
FR4 DOWNLOAD 132 305 4.6
KB-6164 FR4 DOWNLOAD 142 330 4.8
KB-6164F FR4 DOWNLOAD 145 340 4.8
KB-6165F FR4 DOWNLOAD 150 346 4.8
KB-6167F FR4 DOWNLOAD 170 349 4.8
SHENGYI S1141 FR4 DOWNLOAD 135 310 4.6
S1141KF FR4 DOWNLOAD 140 350 4.7
S1000 FR4 DOWNLOAD 155 335 4.9
S1170 FR4 DOWNLOAD 170 335 4.6
S1000-2 FR4 DOWNLOAD 170 335 4.8
S1155 FR4 DOWNLOAD 135 370 4.7
ITEQ IT-158 FR4 DOWNLOAD 150 340 4.6-4.8
IT-180 FR4 DOWNLOAD 180 350 4.5-4.7
TUC TU-768 FR4 DOWNLOAD 180 350 4.3-4.4 4.3
TU-872 Modified Epoxy DOWNLOAD 200 340 3.8-4.0 3.8
ROGERS RO 3003 Cer/PTFE DOWNLOAD 500 3
RO 3010 Cer/PTFE DOWNLOAD 500 10.2
RO 4003 Hydrocarbon/Cer DOWNLOAD >280 425 3.38
RO 4350B Hydrocarbon/Cer DOWNLOAD >280 390 3.48
RT/duroid 5880 PTFE/Glass DOWNLOAD 500 2.2
ISOLA Polyclad 370HR FR4 DOWNLOAD 170 340 4.8-5.1
FR406-HR FR4 DOWNLOAD 190 325 3.91 3.86 3.81
FR408-HR FR4 DOWNLOAD 200 360 3.72 3.69 3.65
P96 Polyimide DOWNLOAD 260 416 3.78 3.73
Hitachi MCL-BE- 67G Modified Epoxy DOWNLOAD 140 340 4.9 4.4
MCL-E-679F FR4 DOWNLOAD 170 350 4.2-4.4 4.3-4.5
MCL-LX-67Y Special Laminate DOWNLOAD 185-195 325-345 3.4-3.6
Nelco N4000-13 Modified Epoxy DOWNLOAD 210-240 365 3.7 3.6
N4000-13EP Modified Epoxy DOWNLOAD 210-240 350 3.4 3.2
N4000-13SI Modified Epoxy DOWNLOAD 210-240 350 3.4 3.2
N4000-13EP SI Modified Epoxy DOWNLOAD 210-240 350 3.4 3.2
Taconic TLX-6 PTFE DOWNLOAD 2.65
TLX-7 PTFE DOWNLOAD 2.6
TLX-8 PTFE DOWNLOAD 2.55
TLX-9 PTFE DOWNLOAD 2.45
RF35 PTFE DOWNLOAD <315 3.5 3.5
TLC-27 PTFE DOWNLOAD 2.75
TLC-30 PTFE DOWNLOAD 3
TLC-32 PTFE DOWNLOAD 3.2
Arlon Arlon 25N Cer DOWNLOAD 260 3.38
Arlon 25FR Cer DOWNLOAD 260 3.58
Arlon 33N Polymide DOWNLOAD >250 353 4
Arlon 35N Polymide DOWNLOAD >250 363 4.2
Arlon 85N Polymide DOWNLOAD 250 387 4.2
Stablcor ST325 DOWNLOAD Thermal conductivity:75w/m.k(with 1oz copper)
ST10 DOWNLOAD Thermal conductivity:325w/m.k(with 1oz copper)
Panasonic R-1566W FR4 DOWNLOAD 140 330 4.95 4.7 4.65
Ventec VT-901 Polymide DOWNLOAD 250 390 4.2-4.5 4.0-4.3
VT-90H Polymide DOWNLOAD 250 390 4.2-4.5 4.0-4.3
Bergquist ht-04503 DOWNLOAD Thermal 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.

    Your Reliable Hard Gold PCB Supplier

    PCBMay is a professional hard gold PCB supplier in China. We offer a wide range of hard gold PCBs widely used in intelligent industrial equipment, entertainment, intelligent AI, education robots, and more.

    The PCBMay hard gold PCB, also known as hard electrolytic gold, has a solid and durable surface. It provides extended shelf life and excellent performance. If you are looking for a highly durable board for high wear application, the PCBMay hard gold PCB is your best choice.

    PCBMay manufactures a hard gold PCB composed of a gold layer with added hardeners to increase durability. Another, using an electrolytic process, the board is plated with hard gold. During fabrication, the hard gold PCB also needs to be put with solder effectively.

    Depending on your PCB design, we will consider other fabrication processes to ensure functionality and reliability. PCBMay hard gold PCB comes with many competitive advantages over different PCBs.

    All PCBMay hard gold PCBs are ISO compliant, RoHS-certified, and UL-listed. We offer a comprehensive selection of products available in multiple types and specifications. At PCBMay, we will support your project demand with our meticulous PCB quality management standards.

    To maximize efficiency, you can send us your hard gold PCB drawing early to collaborate with our design and development team.

    PCBMay is capable of providing a one-stop solution for your product development. Being an expert manufacturer, we offer a high on-time rate and urgent delivery on your orders. We will help you maximize your opportunity to rocket your business in the market.

    We are a professional hard gold PCB manufacturer with more than ten years of experience. We will provide a fast prototype service. In just 24-48 working hours production time, your orders will be on their way to your place.

    As an experienced company, we have a strong sense of service, from sketch to production. We can provide you quality PCB solutions according to your specific needs and situation.

    If you are interested in our hard gold PCB capabilities, you can contact us over email at sales@pcbmay.com or toll-free at +86-755-23196857.

    Hard Gold PCB: The Ultimate FAQ Guide

    In electric circuit design, PCB connections are always critical.

    Hard gold PCB brings out a unique solution to this problem.  This multi-effective PCB allows the repetitive installation and removal of PCBs in complex applications. Hard gold PCB is used in ensuring a smooth connection of the edge.

    Numerous benefits of Hard gold PCB enhance its implementation to a large extent. Are you aware of this reliable PCB solution? If it is negative, we are here for you. PCBMay is the most worthwhile manufacturer of Hard gold PCB.

    This FAQ guide will let you know the ins and outs of Hard gold PCB. So, let’s make a move.

    What Is A Hard Gold PCB?

    Hard gold PCB is an amalgamation of gold and other metals like nickel, cobalt, iron, etc. this is a unique type of PCB where a layer of gold is applied to the nickel layer. It uses electroplating to deposit gold on nickel. Hard gold PCB is different from others in terms of its hardness and friction-resistive nature.

    Hard gold PCB surface has a bright appearance. It is useful to render contact points on PCB surfaces. Again, hard gold PCB has a reputation for establishing edge connections.

    Its other name is electroplated nickel-gold.

    Hard Gold PCB

    Hard Gold PCB

    Here, the nickel layer acts as a barrier between the copper surface and gold. If these two have an uninterrupted connection, it causes diffusion. This is not good for hard gold PCB. That’s why a nickel layer is added here in the middle of them.

    Despite having some limitations, the applications of hard gold PCB are increasing day by day.

    What Are The Properties Of Hard Gold PCB?

    The most significant properties of hard gold PCB are-

    • Electrolytic deposition of gold on nickel
    • More than two thermal cycles
    • Shelf life is more than a year
    • Fair process controlling
    • Flat surface mount technology
    • Certified by RoHS
    • Compatible with normal handling
    • Thin PCB surface finish
    • 98% pure 23-carat gold
    • The thickness of gold is around 30 to 50 microinches
    • The nickel layer is around 100 to 150 micro inches thick.

    Hard Gold PCB Properties

    Hard Gold PCB Properties

    What Are The Applications Of Hard Gold PCB?

    Hard gold PCB is used in various applications. Its tremendous benefits permit you to apply it to so many different electronic devices.

    Widely Used Hard Gold PCB

    Widely Used Hard Gold PCB

    Some of its notable applications are-

    • Fine pitch surface mount technology
    • Small batch PCB productions like ball grid array and micro ball grid array.
    • Flip chips
    • PCB edge-connectors
    • Artificial intelligence
    • Robotics
    • Joined career boards
    • PCB gold finger
    • Keypad
    • Industrial equipment where useful wear resistance is required

    What Are The Benefits Of Hard Gold PCB?

    Hard gold PCB solves many critical issues of complicated electric circuits. Its numerous advantages turn it into the most reliable coating process of today.

    The notable benefits of hard gold PCB are explained here to render you a better idea.

    High Functionality

    Hard gold PCB provides supreme functionality in electric devices. It ensures the smooth conduction of electrons that enhances the efficiency of high-density circuits. The flatness of hard gold PCB pads allows more features in the PCB surface.

    Hard gold PCB renders the required contact points while plug-in or eliminating PCBs often. Besides, it promotes the edge-joints. It also increases the solderability of the PCB surface.

    This hard gold plated PCB is compatible with low-volume production like BGA (ball grid array) or um BGA. Again, this is highly applicable in SMT(surface mount technology). That’s why hard gold PCB is a highly functional circuit solution nowadays.

    Durability

    Hard gold PCB is extremely durable. Its moisture absorption rate is very low. Again, the high thermal resistance of hard gold PCB promotes its durability. The hard gold coating is useful to the thin PCB surface finishes.

    Highly Functional Hard Gold PCB

    Highly Functional Hard Gold PCB

    Long shelf life

    The shelf life of hard gold PCB is one year. This is long compared to other PCB surface coating methods. The long service life of hard gold PCB makes it worthwhile for versatile projects.

    Corrosion resistive

    Hard gold PCB delivers high resistance against the corrosion of the PCB surface. Here, a gold layer is used on the nickel layer. So a polished gold covering resists the decay of copper surface efficiently. It also prevents oxidation in hard gold PCB.

    Nature Friendly

    There is no adverse effect on the environment due to the use of hard gold PCB. This is lead-free. So, hard gold PCB has RoHS compliance. Hard gold PCB provides higher reliability to electric devices because of its tremendous benefits.

    Is Hard Gold PCB Plating Better Than ENIG Plating?

    When you think about gold plating applications, hard gold PCB and ENIG PCB are two prominent options. But, which one is better between these two?

    Hard gold PCB offers some outstanding advantages compared to ENIG in some cases. Let’s have a look at some aspects.

    Contact Force Absorption

    Hard gold PCB is harder than ENIG. So, it is more effective than ENIG against the contact force.

    Resistance To Wear

    Hard gold PCB provides high wear resistance compared to ENIG. It is more applicable in projects where the wear sliding repetition is necessary.

    Easy Processing

    Hard gold PCB uses an electroplating process. But, ENIG uses the electroless method. Electroplating is easier than the electroless process from some angles.

    ENIG PCB

    ENIG PCB

    Appearance

    The appearance of hard gold PCB is better than ENIG. The visible interconnect projects require smooth gold contacts. That’s why hard gold PCB is more applicable in that case.

    Black Pad

    A black pad or nickel pad is found in the ENIG PCB surface finish. But, hard gold PCB is free from the black pad. This property makes hard gold PCB more effective.

    Cost

    ENIG is more expensive than hard gold PCB. So, hard gold-plated PCB is more preferable to ENIG. ENIG is also not reworkable. This ability to rework is highly beneficial to hard gold PCB.

    Signal Loss

    Hard gold PCB never faces any significant signal loss in its shelf life. But, ENIG provides notable loss of the signals during data transmission.

    Functionality

    ENIG PCB renders less functionality in some cases. Such as, it is not compatible with the contact pads.

    Shelf Life

    Hard gold PCB has a long shelf life of more than one year. ENIG also lasts a long time.

    So, you can understand that hard gold PCB is preferable to ENIG in these aspects. But, ENIG delivers better performance in resisting corrosion, solderability, etc. That’s why you should make the right choice concerning your requirements.

    What Is The Best Thickness Of Hard Gold PCB?

    Hard gold PCB provides immense benefits for edge connection. A proper dimension of hard gold PCB will give you the maximum result of using it.

    Hard Gold PCB With The Best Thickness

    Hard Gold PCB With The Best Thickness

    Here, the gold which is electroplated on the nickel layer is 98% pure and 23 karat. The ideal thickness of hard gold is around 30 to 50um. The nickel layer is around 100 to 150 um. You should maintain this range for thickness while designing hard gold PCB.

    Know about PCB design

     

    What Is The Shelf Life Of A Hard Gold PCB?

    Shelf life indicates the time length for which a PCB is usable. Hard gold PCB provides its service for a long time. Its typical shelf life is more than one year. This long service life gives it the benefit of high-volume productions.

    Hard Gold PCB Of long Shelf Life

    Hard Gold PCB Of long Shelf Life

    Hard gold PCB is also widely used due to its long shelf life.

    What Is The Dielectric Strength Of Hard Gold PCB?

    Dielectric strength is the measurement of required electric potential with respect to the thickness that causes dielectric breakdown. This breakdown indicates a decrease in insulating properties.  The higher dielectric strength provides the higher insulation in hard gold PCB materials.

    In the case of hard gold PCB, dielectric strength is influenced by temperature, moisture, high frequency, etc. Insulating properties are crucial for impeding the overflow of electrons in electric circuits. It causes overheating and damage to the hard gold PCB surface.

    Hard Gold PCB With High Dielectric Strength

    Hard Gold PCB With High Dielectric Strength

    A proper dielectric strength offers the required electric field intensity to resist the move from the insulation band to the conduction band. But, this system breaks down at a certain voltage. Then hard gold PCB compromises the performance.

    It enhances the dissipation factor of hard gold PCB materials. That means hard gold PCB lacks functionality and durability significantly. So, you must keep your input voltage lower than the breakdown voltage of hard gold PCB.

    What Is The Cost Of A Hard Gold PCB?

    Hard gold PCB is highly cost-effective. You need to pay up to $10 for one piece of hard gold PCB. But, this price will rise in the case of multilayer PCB stackup with hard gold PCB.

    Cost-Effective Hard Gold PCB

    Cost-Effective Hard Gold PCB

    So, you have to choose your required hard gold PCB at an affordable rate. Contact us. We provide low-cost hard gold PCB.

    What Are The Comparisons Between Hard Gold PCB And Soft Gold PCB?

    Hard gold and soft gold platings are two types of electroplated gold plating technology. There are some distinguishing factors between them. Here is a comparative analysis for your convenience.

    • Hard gold PCB is an alloy of gold with nickel. This gold is 98% pure. But, soft gold is free from any other metals.
    • Hard gold-plated PCB is harder than soft gold PCB. That’s why it provides better absorption of contact force.
    • Hard gold PCB is more wire resistant than soft gold PCB.
    • Hard gold PCB has a brighter look compared to soft gold PCB.
    • The edge-connection ability of hard gold PCB is more effective.
    • Soft gold PCB is more corrosion resistant than hard gold PCB.
    • Hard gold PCB is less solderable.

    Soft Gold PCB

    Soft Gold PCB

    So, hard gold PCB renders better performance in electric circuits than soft gold plating.

    How Can You Choose The Best Hard Gold PCB?

    You can choose the best hard gold PCB easily if you consider some crucial factors. Like,

    • RoHS certification
    • Affordable price
    • Long shelf life
    • Proper thickness
    • Higher thermal cycle
    • High dielectric strength
    • High solderability
    • Better wear resistance

     

    The Best Hard Gold PCB

    The Best Hard Gold PCB

    These factors will give you a proper idea about the best hard gold PCB.

    Why Should You Consider Temperature Change For Hard Gold PCB?

    Hard gold PCB can not deliver maximum output if temperature changes frequently. So,  you have to think about maintaining a constant temperature in hard gold PCB applications.

    Temperature affects the materials of hard gold PCB considerably. High temperature increases the movement of polar molecules that results in variable dielectric constants. Hard gold PCB lacks efficiency due to the rapid change of dielectric constant. It also promotes the loss tangent of hard gold PCB.

    Thermal Resistive Hard Gold PCB

    Thermal Resistive Hard Gold PCB

    Besides, change in temperature is not effective for maintaining the thermal resistance of hard gold PCB materials. So, the entire integrity of signal processing will be hampered to a great extent.

    In the increased temperature, the solderability of hard gold PCB is affected. Since gold and nickel both are thermally conductive metals, it is difficult to ensure a proper layering of gold.

    All of these matters indicate that you need to maintain consistency in the case of temperature. This will promote the performance of hard gold PCB.

    What Is The Ul 94 Standard Rating Of Hard Gold PCB?

    UL 94 standard indicates the flammability of plastic elements in a device. Hard gold PCB has UL  94 V-0 rating. That means

    • The burning will come to an end within 10 sec.
    • Drips of particles are allowed.

    UL94 Standards

    UL 94 Standards

    Do You Need Electroplating For Hard Gold PCB?

    Of course. You have to electroplate hard gold(lesser purity) over the nickel layer in the case of hard gold PCB. That’s why it is also named by the electroplated nickel-gold PCB.

    Unlike electroless plating, electricity is used to coat a metal on other metal during electroplating. This is required because direct contact between copper and gold causes some problems like diffusion and displacement of electrons, etc.

    Electroplated Hard Gold PCB

    Electroplated Hard Gold PCB

    So, a nickel layer is applied between them. This gold plating in hard gold PCB lasts for a long time. Electroplating delivers a sufficient current supply that ensures a solid and resistant gold covering on the surface of the nickel. Sometimes you may need to apply the electroplating process multiple times to get the required thickness.

    How Can You Choose The Right Via For Hard Gold PCB?

    Via is an important factor of multilayer PCB. Since hard gold PCB can be used in multilayer PCB stackup, it affects the performance of hard gold PCB. Via is a hole on the PCB pad. It is used as a channel for current and heat through different layers of PCB.

     Hard Gold PCB vias

    Hard Gold PCB vias

    There are mainly three types of vias in PCB.

    You need to consider the contact force absorption and wear resistance properties of hard gold PCB to choose the right via. Plated through-hole vias are not applicable in hard gold PCB. These vias hamper the mechanism of hard gold PCB. Buried vias connect two internal layers. But blind vias are used to join an internal layer with the external layer.

    Blind and buried vias are useful to hard old PCB. These two don’t lessen the resistivity to wear.

    What Are The Required Considerations Before Hard Gold PCB Design?

    Hard gold PCB demands a well-designed fabrication to maintain superior quality. That’s why you should consider some crucial rules during its design.

    Such as:

    • Hard gold PCB features should be placed from the external edge at sufficient depth (around 25 mm).
    • The hard gold plated region must be free from PTH(plated through holes), solder mask, and silkscreening, etc.
    • PCB gold fingers need to be adjusted with a conductor trace of 0.008”.
    • Gold fingers should be placed by facing outward of the center of the hard gold PCB panel.
    • The proper measurements should be maintained accurately.
    • The exact amount of hard gold should be applied. You can easily calculate the gold requirement. You just need to measure the dimensions of the hard gold PCB surface. Then, identify the weight easily.
    • Thermal resistivity,  soldering capability should be considered.

    Hard Gold PCB Design

    Hard Gold PCB Design

    A proper design of hard gold PCB will ensure the ultimate functionality of PCB-driven applications. Contact us. We offer experienced manufacturing that relaxes you about designing hard gold PCBs.

    How Can You Etch A Hard Gold PCB?

    Etching means the removal of avoidable materials from hard gold PCB surfaces. Usually, a chemical solution with a known concentration is used to etch PCB. This process promotes the entire effectiveness of hard gold PCB.

    Etching of hard gold PCB should be performed carefully. The first thing required is to cover the required portion of hard gold PCB. Then just submerge the PCB laminate in standard ferric chloride solution. This solution ensures a flawless etching.

    Hard Gold-Plated PCB

    Hard Gold-Plated PCB

    It reacts with the materials in the bare portion of the PCB surface. If the space between components of hard gold PCB is large, it will take more time to etch. You have to be conscious of etching undercut. This phenomenon causes flaking in hard gold PCB.

    Besides, the gold coating on the nickel layer should be kept intact during etching. Otherwise, it will not provide you the desired result.

    PCB etching

     

    What Are The Limitations Of Hard Gold PCB?

    Hard gold PCB renders numerous tremendous advantages in versatile applications efficiently. Despite these, it has some limitations which you should consider seriously.

    • Its processing requires extra labor
    • Hard gold plating in PCB is a little bit costly way
    • The maximum solderable thickness of hard gold PCB is 17.8um. That’s why it is unable to provide sufficient solderability in some cases.
    • Hard gold PCB is less effective for wire bonding.

    Effective Hard Gold PCB

    Effective Hard Gold PCB

    But, all of these drawbacks can be minimized by choosing the right manufacturer of hard gold PCB. Its immense benefits justify the apparent high cost.

    How Can You Verify The Performance Of Hard Gold PCB?

    There are multiple testing methods available to verify the performance of hard gold PCB. Here, we are explaining three common and trustworthy tests to check hard gold PCB.

    Flying Probe Test

    The mechanism of the flying probe test is less complicated. Here, you have relief from using additional fixtures. You just need to put a couple of probes on the final points of various lines in succession.

    Hard Gold PCB Flying Probe Test

    Hard Gold PCB Flying Probe Test

    This test offers a low cost to the customers due to its simple operation. But, it consumes a lot of time to check all terminal points. The flying probe test is highly applicable in hard gold PCB with higher density.

    But, in the case of high-volume production, you have to think about time.

    Universal Grid Test

    This test is conducted through ATE(Automatic Testing Equipment). The grid test is applicable for the off-grid design of high-density hard gold PCB projects. It consists of a fixed grid with a huge needle plate. These plates are designed concerning the different portions of hard gold PCB.

    Here, the movable probes, located in the needle plates can only penetrate the specific holes of hard gold PCB. These holes are covered with a mask made of G10 materials. You need to supply around 250V electric potentials to conduct a smooth grid test.

    Automated Optical Inspection(AOI) Test

    This is a completely automated way to verify a hard gold PCB. In this case, 2D or 3D images of your hard gold PCB are compared with the ideal images of hard gold PCBs. The AOI algorithm applies the pixel-count method to match the template of PCB.

    AOI test offers you reliability, low cost, multiple inspection facilities, etc. This test also takes less time than other tests.

    How Can You Choose The Best Manufacturer Of Hard Gold PCB?

    Hard gold PCB promotes the performance of your projects. But, you need to choose the best manufacturer of hard gold PCB to get the maximum benefit of it.

    You should keep some factors in mind before making your choice. Such as:

    • A long-term hard gold PCB manufacturing experience
    • Adequate storage of useful raw materials
    • Well-equipped professional team
    • 7/24 hours customer service with assembly and fabrication support
    • Smooth performance testing facility
    • Huge production capacity of ISO certified hard gold PCB with IPC class 2 or class 3 quality.

    PCBMay is the leading manufacturer of hard gold PCB nowadays. We have been providing hard gold PCB manufacturing service for more than 15 years with great reliability. So, contact us to experience the most effective hard gold PCB of IPC Class 2 standard.

    Conclusion

    Hard gold PCB has brought out revolutionary effectiveness in the case of circuit designing. Now, using a Hard gold PCB is the most effective way to prevent edge problems. You have the flexibility of frequent use of PCBs through hard gold plating.

    PCBMay offers you the optimum experiences of Hard gold PCB. In this FAQ guide, we have tried to explain almost every detail about Hard gold PCB in the easiest way. We hope this will bring you peace of mind. For any further queries, contact us.

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