Superior EMS PCB Manufacturer in China
We are the undisputed EMS PCB manufacturer in China. As a partner of numerous multinational companies, we are highly committed to supply your PCB orders.
- PCB assembly and custom design
- On-time delivery, globally
- RoHS and REACH compliant
- Engineering expert staff
PCBMAY EMS PCB – Let’s Focus on Your Success
Are you struggling to find the perfect partner for your EMS PCB business? Then, consider partnering with China’s leading PCB fabricator. With PCBMay you have a solid authority by your side, to help you with all things concerned with printed circuit boards.
Our core competency is technical expertise. As well, we have the capacity to produce your EMS PCB order within a short lead time. PCBMay will guide you throughout the whole PCB design, assembly and construction process.
Contact PCBMay now!
Types of EMS PCBTo Boost Your Profit
PCBMay Your Best EMS PCB Choice
No need to worry about compliance, order, and quality control. This video about PCBMay’s facilities will put your mind at ease. Because of our dedication to quality assurance, our products will bring you fulfilment. PCBMay secures for you the competence you need.
Boost your revenue by working with such a trustworthy PCB fabricator as PCBMay. We guarantee professionalism at every step of or EMS PCB manufacturing process
Buy your EMS PCB from us, and see your business boom!
Related EMS PCB
EMS PCB Production Details As Following Up
|Base Material||KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350B、Rogers4000、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco 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.|
|Copper Thickness||Min. 1/2 OZ, Max. 10 OZ|
|Maximum Board Size||1100*500mm(43”*19”)|
|Min laser drilling size||4mil|
|Solder Mask||Green, Black, Blue, Red, White, Yellow,Purple matte/glossy|
|Surface Treatment||Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+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 free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP)|
|Impedance control||±5ohm(＜50ohm), ±10%(≥50ohm)|
|Other Techniques||Blind/Buried Via|
|Via in Pad|
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)|
|Hitachi||MCL-BE- 67G||Modified Epoxy||DOWNLOAD||140||340||4.9||4.4||–|
|N4000-13EP SI||Modified Epoxy||DOWNLOAD||210-240||350||–||3.4||3.2|
|Stablcor||ST325||–||DOWNLOAD||Thermal conductivity:75w/m.k(with 1oz copper)|
|ST10||–||DOWNLOAD||Thermal conductivity:325w/m.k(with 1oz copper)|
|Bergquist||ht-04503||–||DOWNLOAD||Thermal conductivity:2.2w/m.k(with 1oz copper)|
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PCBMAY – Your Top Supplier of EMS PCBs
Your responsibility as an Electronics Manufacturing Service (EMS) depends on your reputation. Because you care deeply about the quality of your products, you need to partner with an equally excellent EMS PCB provider.
That is why you can count on PCBMay.
- Implement Continuous Improvement in PCB manufacturing process
- Assure you flawless execution of all your PCB designs
- Capacity to mass produce your electronic parts
- Full customer service coverage & IT support
- Bring utmost value to your B2B product
If you already have EMS PCB, High-frequency PCB, or Surface Finish PCB design in mind, we will accommodate them. If you need help with designing aspects, our in-house engineer and related support staff will gladly help. We furnish you with a free sample beforehand, to check if it fits your specs.
When you think about international standards, we have UL certificates from the US and Canada as well as the most current ISO approval. You can trust that your EMS PCB will be made using safe raw materials from reputable, leading suppliers.
We are aware that some complex EMS PCB or Multilayer PCBs take time. In the process of manufacturing these complicated designs, you will be given the most up-to-date progress report. You’ll have a WIP report every week that your order is with us. As for quick-turn service for your prototype, expect us to deliver within 24 hours.
So, what are you waiting for? Don’t hesitate anymore! Partner with us now. Your business matters to us. Rely on the most reputable EMS PCB supplier from China.
Contact our sales team immediately!
EMS PCB: The Ultimate FAQ Guide
If you want to execute flawless PCB manufacturing, EMS PCB is the most reliable solution for you. It ensures the continuous development of PCB assembly with supreme efficiency. This manufacturing service includes the utmost value to your electronic products.
PCBMay is the leading EMS circuit board provider in China in recent times. We assure you of the superior quality of electronic applications. This FAQ guide will let you know the details about EMS PCB in simple words.
We hope it will help you to gather sufficient knowledge on PCB electronic manufacturing. Let’s start.
- What Is EMS PCB?
- How To Select PCB Materials For EMS?
- What Are The Notable EMS PCB Types?
- Which Surface Finish Is Suitable For Double-Sided EMS PCB?
- What Are The Main Differences Between OEM And EMS PCB?
- What Are The Major Applications Of EMS PCB?
- What Are The Component Mounting Processes In EMS PCB?
- What Are The EMS PCB Advantages?
- What Are The Features Of The Best EMS PCB Provider In China?
- What Are The Quality Control Processes Of EMS PCB?
- How To Verify The Functionality Of Digital EMS PCB?
- What Are The EMS PCB Soldering Processes?
- What Are The Common Reasons For Occurring Failure Modes In EMS PCB?
- Is Multilayer Stackup Suitable In EMS PCB Assembly?
- What Is The Best Software For EMS PCB Design?
- What Are The Drawbacks Of EMS PCB?
- Is Quick-Turn EMS PCB Cost-Effective?
- What Are The IC Packaging Processes In PCB Electronics Manufacturing Service?
What Is EMS PCB?
EMS is the short form of Electronic Manufacturing Services. EMS PCB deals with varieties of manufacturing-related services. Like engineering designs, component sourcing, materials selection, fabrication, inspections, etc.
PCB electronic manufacturing services offer a plethora of benefits. EMS technology has versatile applications in numerous electronic sectors. Since PCB is the backbone of electronic appliances, its proper manufacturing improves product quality to a great extent.
It is important to ensure proper planning and execution of PCB component arrangements, layer count, drilled hole dimensions, etc. Everything needs to be arranged concerning the PCB design layout.
This PCB manufacturing service renders multilayer design facility, quick-turn of prototypes circuits, etc. In a nutshell, EMS PCB significantly upgrades the standard of your electronic projects.
EMS PCB Assembly
How To Select PCB Materials For EMS?
PCB materials are the key factor behind the immense popularity and outstanding performance of EMS PCB. That’s why it is highly important to select the right materials for the PCB electronic manufacturing services.
You have to consider some vital factors to make your choice perfect. Proper EMS PCB materials should have the following features.
- Temperature resistance
- Insulating properties
- The low moisture absorption rate
- Compatible with conformal coatings and resin encapsulations
- High resistance against chemical contaminants
- Low but stable dielectric constants
- High tensile strength
- Dielectric strength
- Proper thermal conduction
- High flexibility along with sufficient rigidity
- Compatibility with high-frequency data transmission systems
- Effective flame resistance. V-0 rating in the UL94 standard is the most desirable.
- High current conduction capacity
EMS PCB Materials
Considering the factors mentioned above, it is useful to apply these materials:
This glass-reinforced epoxy material is effective for its superior flame retardance and resistance to water. Its strength-to-weight ratio is also perfect for EMS PCB.
Aluminum, copper, etc metals provide sufficient tensile strength, temperature control, improved LED density, etc.
The right use of PCB materials increases the durability of EMS PCBs resulting in a long operating life.
What Are The Notable EMS PCB Types?
EMS PCB offers versatility in its types. Different types of basic and complicated PCBs that utilize electronic manufacturing services are available in the market. The most notable types of this circuit board include-
EMS PCB Assembly Types
Which Surface Finish Is Suitable For Double-Sided EMS PCB?
Double-sided EMS PCB allows multiple connections to your electronic appliances. But, it never burdens you with additional costs. So, this circuit board’s EMS has become a reliable choice for the consumers.
EMS allows the use of different types of effective PCB surface finishes. Like ENIG, HASL, immersion gold, Immersion Tin, and so on. Among these, HASL (Hot Air Solder Leveling) is the most suitable surface coating technology for PCB EMS.
EMS HASL PCB surface finish consists of immersing PCB boards in a container of Pb/Sn alloy. Then air knives are used in eliminating excessive solder. HASL ensures low cost and impressive shelf life.
It offers commendable resistance against corrosion and oxidation. So, electronic manufacturing services for PCBs become more durable along with improved quality.
This metallic coating is reworkable. That’s why it has supreme acceptance among the users. Besides, it assures you of having sufficiently strong solder connections that is a great concern for electronic circuit boards.
EMS PCB ENIG Surface Finish
What Are The Main Differences Between OEM And EMS PCB?
In the arena of PCB manufacturing, OEM (Original Equipment Manufacturing) and EMS are very popular terms. Both of these PCB manufacturing services have core differences in some cases. Now, we are going to focus on the comparison between these two.
OEM is also known as contract manufacturing in the PCB industry. OEM PCB is designed and produced according to the consumer’s specifications. In contrast, PCB EMS deals with designing, manufacturing, assembly testing, etc.
EMS also takes care of other sectors related to the fabrication, repairing, distribution of electronic products. That means an EMS PCB provider delivers original equipment manufacturing (OEM) as well. So, EMS renders controlled and smooth PCB manufacturing compared to OEM.
OEM PCB is supportive of surface mount technology (SMT) in most cases. That’s why it has some limitations in different electronic devices. But, EMS allows both SMT and THT (Through-hole Technology) in PCB assembly.
Besides, the components used in EMS PCBA are easy to program and replace. So, PCB electronic manufacturing offers higher flexibility to the designer.
Expertise Of Design Testing
Experience makes a huge difference in the PCB industry. EMS shows impressive expertise in the case of PCB assembly testing. The technicians who conduct all segments of electronic manufacturing are more experienced than OEM PCB technicians.
OEM PCB deals with limited issues compared to EMS. So, it is less expensive in terms of manufacturing cost. On the contrary, EMS circuit boards have cost-effective features. Again, PCB quick-turn EMS offers a low production time and superb performance. So, you don’t need to be worried about its high expense.
EMS PCB has versatile applications in countless sectors. Its easy assembly and competitive cost performance make it compatible with a vast range of applications. But, OEM PCBs are not widely used in electronic components.
PCB EMS never trades off quality with any other property. Its high-quality assembly and fabrication with proper inspection lift the product to a high standard.
We produce EMS circuit boards made of high-level raw materials. Our products are also certified by UL. Inquire us immediately to enjoy the most elite PCB manufacturing service.
OEM Vs EMS PCB Assembly
What Are The Major Applications Of EMS PCB?
EMS PCB includes immense positive points to versatile electronic fields. That’s why it is used in almost all products that are integrated with electronic components. Some of its major sectors of application include-
EMS circuit boards are widely used in consumer electronic products. You can find electronic manufacturing services in the following home appliances-
- Home theater
- Remote controlled devices
- Digital watches
- CD players
- Gaming consoles
- Microwave ovens
- FM radio
EMS PCB also has great use in the telecommunication sector. It improves digital networking systems, relay stations, wireless communications, etc. You can use it in communicating through aircraft equipment and short-distance signal transmission.
Nowadays transceivers, navigation systems, defense communication instruments, etc are composed of this circuit board.
The proper functioning of PCB EMS develops the quality of various industrial applications. Like-
- Network analyzer
- Weather telemetry
- Temperature meters
Except for these, EMS PCB is a very common part of the military, medical, aerospace, etc industries. Its quality assembly service along with effective time and cost management makes it compatible with so many fields.
EMS PCB In Power Inverter
What Are The Component Mounting Processes In EMS PCB?
EMS PCB supports two types of component mounting during the assembly.
In this mounting process, surface mount devices are used. This is the most popular component mounting in the electronic assembly. SMD is supportive of small-size PCB designs.
So, you should apply the necessary equipment to achieve desired design accuracy. Besides, SMDs are effective for ensuring high-speed data propagation. It is easier for the designer to arrange the components concerning the design in the case of SMT.
That means SMT is the perfect choice for compact EMS circuit board design. Watch this video to know more about SMT:
Through-hole Technology (THT)
It deals with pin-through-hole (PTH) components. Here, the terminals of the PCB components are placed into the holes. Then, you need to weld these components from the other side of the circuit board.
So, you can consider THT as a manual process. It provides sufficient robustness in the PCB design. But, this mounting process is less utilized in electronic manufacturing due to its high expense and time consumption.
EMS PCB Surface Mount Technology
What Are The EMS PCB Advantages?
Printed circuit board EMS offers outstanding advantages in electronic products during their productions. Some of its significant benefits are explained here for your convenience.
Electronic manufacturing services ensure first-pace assembly and design of electronic devices. That’s why the manufacturing period reduces without compromising effectiveness. It’s a great advantage for both consumers and manufacturers.
Again, you can enjoy quick-turn services for your prototype designs. So, PCB EMS saves your valuable time as well as promotes product standards.
Easy and fast manufacturing leads to the low production cost of an EMS circuit board. Though it requires high-quality components which are a little bit expensive. But, its high-class performance along with low manufacturing time turn this PCB into a cost-effective solution.
Long Shelf Life
PCB EMS enhances the durability of electric circuits. The circuit board can tolerate tremendous mechanical, thermal, electronic pressures with supreme efficiency. So, EMS printed circuit boards remain highly functional over a long period.
Proper selection of PCB materials and top-class components play significant roles in increasing its shelf life.
Flawless execution of PCB EMS ensures the quality performance of your electronic appliances. Electronic manufacturing services of PCB involve functional testing and parts procurement.
You can apply this PCB in extreme thermal conditions. Its top-notch engineering design maintains superior thermal management during its operation. So, EMS PCB delivers superlative performances both electrically and thermally.
EMS improves the fabrication and assembly of printed circuit boards. So, the PCB components become supremely functional in this case. Effective component placement ensures high-speed signal transmission in electronic devices.
Besides, digital EMS PCB meets the demand of both electrical and mechanical purposes. Compatibility with multilayer design and facility of utilizing both of the PCB surfaces enhance its applications.
EMS PCB Advantages
What Are The Features Of The Best EMS PCB Provider In China?
If you seriously care about your electronic products, you need to collaborate with a reliable EMS PCB provider. But, it is not so simple to find a trustworthy PCB manufacturer in China.
But, nothing to worry about. We are here to solve your problems. You need to focus on the following features to choose the best PCB EMS supplier.
- Long and trustworthy manufacturing experience.
- Ability to deliver custom solutions of complex circuit boards or multilayer PCBs.
- A well-equipped factory with a group of RoHS-certified in-house engineers and skilled staff.
- Quick manufacturing service for PCB prototypes.
- The capability of providing IPC standard various PCB EMS.
- Competitive cost performance
- Superior customer service.
PCB EMS Provider In China
You can rely on us for getting the best PCB EMS in China. We can assure you of executing errorless EMS PCB designs within the shortest possible time. Besides, you will get full customer service coverage along with 24/7 IT support.
We also have capabilities of large-scale productions of versatile electronic parts at affordable costs. That’s why you can count on us without any hesitation.
What Are The Quality Control Processes Of EMS PCB?
You should consider the following factors to ensure quality control of EMS PCB.
- Proper material selection
- Component sourcing
- Regular inspection
- Standard IC packaging to protect the components
- Smooth handling
- Conducting functional tests
EMS PCB Quality Control
EMS solutions are worthwhile for promoting the quality of electronic products. That’s why you must consider these factors during EMS manufacturing.
How To Verify The Functionality Of Digital EMS PCB?
Digital EMS PCB is a supremely functional circuit board. But, you need to check its functionality to get an idea about its real-time performance. Numerous tests are available to verify its performance. The most noteworthy tests include-
- Automated X-ray inspection
- Flying probe test
- Automated optical inspection
- In-circuit test
Besides, you can conduct thermal tests, vibration tests, etc to verify the mechanical and thermal efficiency of digital PCB EMS.
Highly Functional EMS PCB
What Are The EMS PCB Soldering Processes?
EMS efficiently handles the soldering of printed circuit boards. Proper soldering of EMS PCB improves the functionality of the PCB components. Besides, it enhances the durability of entire electronic applications to a large extent.
The most reliable soldering processes of EMS PCBs are-
- SMT soldering
- Wave soldering
- Through-hole reflow soldering
Watch the following video to get a better idea about PCB soldering:
PCB Soldering In Electronics Manufacturing Service
What Are The Common Reasons For Occurring Failure Modes In EMS PCB?
Improper execution of EMS manufacturing services causes different failure modes in EMS PCB assembly. Here, some common reasons for PCB EMS failures are explained so that you will be aware of these modes during manufacturing.
EMS Multilayer PCBs are supremely effective in modern electronic projects. But, you don’t expect a high-class performance from a design where layers are misaligned. Misalignment causes a malfunction in the circuit board.
Again, it increases the possibility of occurring short circuits, poor signal transmission, etc.
Etching is a mandatory part of the PCB EMS fabrication. It eliminates unwanted copper from the PCB traces. But, improper etching causes serious damage to the PCB. Like a highly toxic etching solution can etch necessary copper and other PCB portions. Then, EMS PCB can’t deliver maximum output.
Poor solder flux causes decay of metals used in the PCB fabrication. If you don’t apply solder flux properly during electronic assembly, metallic corrosion will be a very common failure mode.
Wrong Copper Thickness
Well-calculated copper thicknesses improve the current carrying capacity in circuit boards having electronic manufacturing services. But, the wrong copper weight can’t handle higher current loads that result in overheating and burning issues.
When the PCB components are exposed to moisture, they get damaged due to oxidation. Improper component packaging also causes failure in the PCB EMS.
Poor Solder Connection
Excessive thermal pressures and wrong use of solder can break the solder connections. Then, the PCB can’t function properly because of having any smooth connection between the components and circuit board.
EMS PCB Common Failures
These are the common reasons for having failure modes in EMS PCB assembly. You should ensure a well-designed PCB layout and proper execution of assembly. Then, there will be fewer possibilities of facing such problems.
Is Multilayer Stackup Suitable In EMS PCB Assembly?
Yes. EMS PCB supports multilayer stackup from 4 to 40 layers. This PCB ensures superb thermal management and layer alignment in multilayer designs. So, it can deliver the optimum output in signal transmission systems.
The dielectric materials used in multilayer EMS PCB are highly effective for maintaining high dielectric strength. Besides, these components offer a low relative permittivity in different PCB layers.
It is also applicable in RF and microwave technologies. So, multilayer PCB EMS has tremendous demand in wireless communications.
Multilayer EMS PCB
What Is The Best Software For EMS PCB Design?
Electronic manufacturing services take care of PCB design with supreme efficiency. There is so much design software used in creating schematics of EMS PCB. But, Altium Designer is the best among all.
It enables the designer to incorporate exclusive features in PCB design. Like, here you can toggle between 2D and 3D bodies concerning your design layout. It is easy to check the design accuracy in Altium Designer compared to other design software.
EMS PCB Design Software
What Are The Drawbacks Of EMS PCB?
Though EMS PCB offers immense advantages in the electronic components, it has some drawbacks also. Such as-
- It requires top-class meticulous maintenance in every step of PCB EMS.
- It seems a little bit expensive in some cases.
- Improper execution of PCB EMS can cause hazards to the products.
The Best PCB Electronics Manufacturing Service
Is Quick-Turn EMS PCB Cost-Effective?
Quick-turn EMS PCB is capable of delivering speedy output along with maintaining outstanding quality. Since time is a vital issue in PCB manufacturing, this PCB will save you valuable time. Its speedy feature has a great impact on the production cost.
This circuit board enables the manufacturer to design, place the components, and fabricate them within a short time. So, you don’t need to pay the equipment cost and labor cost for a long time span.
Besides, quick-turn PCB with electronic manufacturing services is highly compatible with high-volume productions. So, this Circuit board is no doubt cost-effective.
Quick-turn EMS PCB
What Are The IC Packaging Processes In PCB Electronics Manufacturing Service?
IC packaging is an effective way to increase the longevity of the EMS PCB components. Proper packaging of integrated circuits protects the chips and IC pins. So, you need to choose a suitable IC packaging process to connect semiconductors to the circuit.
Usually, through-hole and surface mount IC packaging are used in EMS electronics. These processes have some sub-types. Such as:
Through-hole IC packaging
- Dual in-line packaging
- Zigzag in-line packaging
- Standard through-hole packaging
- Shrink packaging
Surface Mount IC Packaging
- BGA (Ball Grid Array)packaging
- L-shaped lead packaging
These are some reliable IC packaging processes in PCB EMS. You have to consider the following factors while choosing the most suitable IC packaging for your projects.
- Thermal properties
- The number of IC pins
- Assembling time
- Operational speed for high-speed signal transmission
IC Packaging In EMS Printed Circuit Board
EMS PCB maintains the quality of numerous types of electronic goods. It promotes large-scale manufacturing services to a large extent. PCBMay, the most reputable EMS printed circuit board designer supplier, offers the best assembly.
This complete FAQ guide covers almost every corner of this manufacturing service. It obviously benefits you to experience internal standard PCB assembly as well as effective cost performance. Feel free to contact us to know more about complex PCB EMS. Stay tuned.