As a professional PCB assembly manufacturer, UETPCB values the quality of electronic components it used. We are trying to provide the best PCB manufacturing and PCB assembly service, thus how to select the high-quality electronic component with affordable price is still our focused problem. The right electronic components will promote make a work efficiency of PCB manufacturing and PCB assembly for us, and high-quality printed circuit boards of our customers.

We all know that electronic component is a key point during the whole printed circuit board assembly manufacturing, only soldering the correct parts on the bare PCB boards, the printed circuit boards will be worked and achieve desired functions. UETPCB has been engaged in the electronic industry for more than ten years, with rich resources and experience in PCB assembly. In order to better serve customers, fully save customers’ wasted time in purchasing all kinds of electronic components, reduce troubles and improve work efficiency, we are more inclined to purchase all electronic components in BOM on behalf of customers. In terms of components sourcing, we will strictly according to the BOM list, in line with the principles of “quality” and “price”, we have our own components sourcing team that order the parts from the original parts manufacturers directly or officially designated agent or distributor, on the premise of official channels and reliable quality, choose the trustworthy electronic materials manufacturer and get a better price, to help customers achieve maximum cost-effectiveness.

The electronic materials distribution industry has different channels, mixed up with each other, and a great difference in quality and price. Only those PCB manufacturing and PCB assembly manufacturers that have long close cooperation with them are likely to accumulate advantageous resources in this field and gradually improve the supply chain. UETPCB committed to providing customers with more efficient, more professional, more reliable electronic manufacturing services, we established a strong partnership with the original NXP, Arrow Electronics, Avnet, Farnell, element14, Digi-key, and Mouser, UETPCB promise: “Without your approval, will not use any alternative material.”

With an independent warehouse management system, UETPCB can keep long-term storage for the commonest used electronic components, and provide the long-term, rapid delivery of the printed circuit boards to customers. You can test and trace every electronic component from quotation – procurement – warehousing – storage – assembly, and every step follows strict system standards. We adhere to strict quality standards applicable to all areas of industry and trying to satisfy all requirements of our customers.

PCBA manufacturing is by no means a blend of incorporating substance procurement on the grounds of SMT processing. Any issue of any substance will impact the general effect of PCBA plank, which require us to have enough substance detection capability, provider management capability, technical evaluation ability and dependability evaluation capacity.

The turnkey PCB assembly production is a kind of printed circuit board assembly service that is very convenient for customers to have high-quality PCBs. Nowadays, most PCB manufacturing and PCB assembly manufacturers have the turnkey PCB assembly production service. UETPCB as a professional PCB manufacturing and assembly manufacturers, provides the best turnkey PCB assembly production service. You will find the specific page on our website where have more information about the turnkey PCB assembly production service we provided.

Reliability testing is frequently ignored by turnkey PCB assembly manufacturers, who often think that so long as the PCBA plank is tested without any problems, and the PCBA plank is going to be approved by end clients. But lots of PCBA boards have deadly defects like short service life and shaky to use in terminal goods, that are a result of the collapse of PCBA factories to rigorously execute reliability evaluations.

The way to perform the reliability evaluation of PCBA board?

1: Functional Testing

Functional evaluation is employed as the last PCBA manufacturing measure. It supplies a pass or fails determination on completed PCBA planks and validates that PCB assembly products hardware isn’t any flaws before they’re sent. It may check the performance of this item anywhere from 50 percent to 100 percent of the PCB assembly products being sent thereby decreasing time and effort on the OEM to test and fix it.

2: Aging Screening

The PCBA plank with evaluation function OK was put under certain humidity and temperature requirements, and repeated switching on and off, simulated purpose performance, load performance etc were completed. The equilibrium of this PCBA board has been analyzed through constant work of 24 to 72 hours. The aging evaluation takes quite a while, making it impossible to run large-scale batch performance. In the actual procedure, the aging evaluation simply conducts sample sampling, and the total return of the batch of PCB assembly products can be decided by the pass rate of sampling evaluation.

3: Vibration Testing

From the procedure for shipping to clients, many PCBA boards frequently have some issues brought on by vibration during transport, such as part shedding and pads fractures. Throughout the shaking test, the vibration impact from the transport can be simulated efficiently in the lab, and also the hidden risks from the PCB assembly soldering procedure can be slowly exposed. To get around the bad soldering in batch PCBA planks, and also enhance the overall return of shipping.

4: Surge Testing

From the turnkey PCB assembly process, it’s often OK to operate under ordinary voltage, but a passing failure happens in a particular power surge. Many circuit designs aren’t perfect. They frequently don’t take into consideration the deadly effect of instantaneous voltage or current shock on the entire circuit, which takes us to run the surge testing prior to the mass production of PCBA.

5. Packaging Testing

This evaluation can be overlooked, but might well create a funny issue: we invested a great deal of effort to generate the PCBA board’s ideal, but we dropped in the previous portion of packing and transport. Hence that the mill should simulate the packing kind of PCBA plank to run proper fall check.

The reliability testing of PCB assembly plank isn’t confined to the aforementioned several testing. Each PCBA manufacturer can talk with the client to determine the particular reliability test plan in line with the true situation, so as to offer higher quality production.

During the printed circuit board assembly processing, there must have some issues you might meet ordinarily. As a professional PCB manufacturing and PCB assembly service company, UETPCB has a responsibility to warn customers. We provide a complete issues solution of PCB assembly because we have rich experience in PCB manufacturing and assembly service industry.

Because of the nature of PCBs, we can repairable these malfunctions easily. Now we provide some typical malfunctions to help prevent these kinds of errors.

1. Damage in the traces

The trace of PCB is usually made of aluminum and silver. Using these kinds of materials might cause some damages to the traces. Powe surges, metallic dust contamination, and lightning strikes are the common causes of these damages. Generally speaking, people can repair these damages, and usually, any damage is easily visible.

2. Physical harm to the PCB

This PCB failure is caused by environmental pressures or harms brought on by PCB manufacturers during the PCB fabracation. Dropping the PCB or prototype PCB is the commonest cause of this malfuction. This kind of malfunction can not repairable, once it occurred, the PCB itself must be substituted.

3. Heat and humidity

Exposing PCBs to the environment of humidity and heat will cause thermal pressure. The thermal pressure might damage the electronic components and the soldering of joints. Improper copper weight or Plating issues usually cause higher stress.

4. Faulty electronic component

The faulty components are another common reason that caused printed circuit board assembly difficulties and malfunctions. This kind of faulty includes overheating, aging, voltage surges, and corrosion, and the actual damage caused by this reason can be read with a meter.

As with all manufacturing businesses, mistakes are sometimes made during the production of PCB prototypes. However, by knowing what to look for you’ll be able to avoid PCB malfunctions and will have the ability to spot and resolve them more efficiently.

What’s UETPCB PCB Assembly (PCBA) Quality Management?

Under the guidance of ISO9001 system and IPC-A-610E standard, UETPCB refines our internal management process, improves supply chain of electronic components management, and provides customers with quality PCB assembly and PCB manufacturing services. We strictly control process of design, NPI product introduction, DFM inspection, PCBA manufacturing, quality control in testing and personnel training to form a set of quality management system.

As profession PCB manufacturing and PCB assembly company, UETPCB has lots of strict quality management to ensure our PCB assembly products reached and more than average standard in PCB manufacturing and PCB assembly industry. Our printed circuit board assembly service includes turnkey PCB assembly, components sourcing, wire harness assembly, box build assembly, prototype PCB and electronic contract manufacturing.

Our Certificates & Standards

• *Company with ISO9001, ISO13485 and IATF16949 certificate.
• *Production conform with IPC-A-610E standard.
• *Strictly process control and quality control. Standardize IQC, IPQC and OQC.
• *PCB production comply with UL, RoHS, ISO certificate.

DFM Check

Check customer’s design PCB, BOM, schematic, finished product assembly for the following items:

• *Document version and last updated date
• *Process: lead/lead-free
• *Clear component designator and silkscreen
• *Complete component’s manufacturer brand and part number, description, etc.
• *Confirm PCB manufacturing process: material, board thickness, copper thickness, layers, finished surface, solder mask and other special technologies
• *Correct SMT assembly files (pick & place file, diagram, programming and function testing, sample pictures)
• *Other special requirements

New Product Introduction Meeting

Organize sales department, engineering department, production department, purchasing department, quality Department to hold NPI meeting:

• *Detailed introduction product application scope, delivery date and special requirements
• *Identify production batches, purchase and delivery quantities
• *Evaluate the difficulty and key quality control points of the project
• *Define the time of PCB manufacturing and electronic components
• *Draft production plan
• *Define customer product test plan

IQC Incoming Material Inspection

• *Check incoming electronic components batch number, part number, silkscreens are consistent with BOM
• *The incoming electronic components are placed on the PCB bare board for the fitting test of the SMD pad or through hole
• *Spot check the value of resistors and capacitors if matched with BOM
• *Checking whether there is scratch, deformation, broken and other appearance defects on the electronic components

PCBA Assembly Inspection

• *AOI inspection to detect wrong parts, missing parts, reverse parts, bad soldering and other defects
• *X-ray inspection to check BGA parts
• *Function testing to confirm finished product’s performance

UETPCB Guarantee

We provide long-term technical support and warranty support for our sold products to every customer.

Lead time of PCB manufacturing (The lead time only for reference, accurate lead time will be quoted after UETPCB team confirmed your design files)

Layer	Standard Lead Time
	0-0.5m2	0.51-1m2	1.01-3m2	3.01-5m2	5.01-10m2	≥10m2
1L	3-4Days	5 Days	6 Days	7 Days	8 Days	9-10 Days
2L	3-4Days	5 Days	6 Days	7 Days	9 Days	10 Days
4L	5-6 Days	7 Days	7 Days	8 Days	10 Days	12 Days
6L	6-7 Days	7 Days	8 Days	9 Days	11 Days	13 Days
8L	7-8 Days	9 Days	10 Days	12 Days	13 Days	14 Days
10L	9 Days	10 Days	11 Days	13 Days	15 Days	16 Days
12L	10 Days	11 Days	13 Days	14 Days	16 Days	Confirmed with files
14L	11 Days	12 Days	14 Days	16 Days	18 Days
16L	12 Days	13 Days	14 Days	17 Days	20 Days
18L	13 Days	14 Days	15 Days	18 Days	Confirmed with files
20L+	14 Days	15 Days	16 Days	18 Days
NOTE : PCB manufacturing expedited order with 24Hours，48Hours,36Hours,72Hours also provided by UETPCB

Lead time of PCB assembly (The lead time only for reference, accurate lead time will be quoted after UETPCB team confirmed your design files)

QTY(PCS)	QTY of parts	QTY of parts types	Standard Lead Time
1-10	50	20	3 Days
10-50	50	20	3-4 Days
50-200	50	20	3-5 Days
200-500	50	20	4-5 Days
500-1000	50	20	5-7 Days
1000-3000	50	20	5-8 Days
3000-5000	50	20	7-10 Days
5000+	50	20	Confirmed with files
NOTE : PCB assembly expedited order with 24Hours，48Hours,36Hours,72Hours also provided by UETPCB

Lead time of components sourcing (The lead time only for reference, accurate lead time will be quoted after UETPCB team confirmed your design files)

Electronic Parts	Type of Components	Standard Lead Time
A	IC, Connector, customized wire harness, etc.	2 Weeks
B	Diode, LED, Crystal, coil fuse, tantalum/electrolytic Capacitor, etc.	7-10 Days
C	Capacitor, Resistor, Inductor, etc.	1-7 Days

Recently, in the reception of customers’ consultation, customers often say that we need to make small-batch PCBA. Can you do it? Sure! We are sure that it can be done because UETPCB is a professional PCB assembly manufacturer in Shenzhen that can provide concentrated mass production, low volume production, and sample prototype PCB production. Particularly UETPCB also customized a prototype line for small and medium batch PCB assembly. It is equipped with Swedish solder paste printing machine, selective wave soldering, X-ray machine, and professional SMT processing technicians. However, when we have in-depth communication, some customers will have great doubts about the cost, why are our prototype PCB and small-batch PCB assembly order higher than the batch price?

Usually, the cost of the manufacturing industry is made of the components, labor, and machine so do PCB manufacturing and assembly service.
Other facts of the higher price of small-batch PCB assembly depend on the cost of products. We all know there is a production cycle in PCB assembly manufacturing. The shorter the PCB assembly production, the lower price will cost. We are confident that our advanced PCB manufacturing and PCB assembly machine provides a shorter production cycle than other PCB assembly manufacturing. But on the other hand, compared with mass PCB assembly production, small-batch PCB assembly production is more expensive.

Small batch PCB assembly cost mainly includes boot, engineering, stencil, according to the normal soldering pins calculation processing, etc., or simply summed up in the lowest consumption, minimum the cost of capital preservation is an electronic factory, less than the cost maybe not making money or even at a loss, a loss of business is certainly no one does.

Normal batch SMT assembly processing is generally directly by soldering pins to calculate the cost plus a stencil fee, if there is a special process needs maybe a little more expensive. The expensive part of making samples in small batches is that there is not enough quantity to share some necessary costs in the processing. There has not so much difference between 1 board or 100 boards in actual PCB assembly processing. Because it has been finished for a while and has the same machining process, such as component checking, put the sample into the system, and PCB baking temperature, SPI test, AOI inspection, SMT solder paste printing, first article inspection, aging test, the assembly packaged, or other assembly processes. All of these tests are necessary. It is the same that cost on the artificial, only that have so many quantities for cost allocation, no matter mass and small-batch can’t share. Therefore, the PCB assembly manufacturer needs to charge for boot fee or engineering cost.

In addition to the inability to compress labor costs, production efficiency will also be severely reduced. The SMT assembly processing line will stop as soon as it starts, which will undoubtedly have a great impact on production efficiency. The normal low price comes from some small workshops, quality is not guaranteed, so we do suggest that customers choose a professional PCB assembly manufacturer to guarantee the quality and warranty. As one of the famous Chinese professional PCB assembly manufacturer, UETPCB provides high-end products and will become your best Chinese PCB partner to deal with your PCBA projects. If you are finding Chinese PCB manufacturer online, we will provide the best service for you.

With the rapid development of the Internet, some network technology companies have entered the PCB manufacturing industry. They changed the original stable and reliable production of principle, in order to save time and improve efficiency. there is no deny some official online PCB stores, but the price of the official online store price is higher than an offline business, the real advantages of price need have a lot of communication and stable cooperation can be reflected for the mass production orders. In the online PCB stores, you can often change one to another one, you can choose the one which lowest price, with no guarantee of the quality of PCB assembly products, not to mention after-sales service. In any case, exposure on the Internet also brings a certain wealth of knowledge and convenience to practitioners, as well as enthusiasts, students and individuals. Even on this convenience, real PCB assembly and PCB manufacturing factories and manufacturers will not do the online quote. As online quote maybe only suit for samples or small quantity orders in PCB and PCB assembly manufacturing.

If you search “ PCB assembly China” on google, you will find lots of Chinese PCB manufacturers online. It might be easy to create the order online, but a bit of difficult to find a high-quality PCB China online service.

UETPCB always focuses on the quality of the PCB assembly service. We deeply know the disadvantage of online quote for PCB assembly. Therefore, to ensure that we can satisfy every quote for PCB assembly, and provide high-quality PCB assembly, we not use online quotes for PCB assembly. The complete quote information is beneficial for us to provide an efficient PCB assembly service for you, so please send us an e-mail with the specific information about the PCB assembly service you want.

Then why UETPCB not use online quotation for PCB assembly?

Many customers perfer PCB or PCBA one-stop online quotation because of its indeed convenience. This kind of convenience might really make customers feel convenient. But as a matter of fact, customers are not so convenient. The customer is not so convenient, the customer is required to update the BOM according to their BOM format, and then many electronic materials cannot be matched, so it takes a lot of time to find out the accurate customer service, and their customer service is often not so professional, However, only an email can be solved to get a perfect, detailed and responsible quotation, customers should have only sent the files and requests together with the email, wouldn’t it be more convenient.

Then PCB manufacturing or PCB assembly manufacturing itself is a rigorous process, in the PCB manufacturing or PCB assembly process need to check the customer’s BOM part number if is complete, because a part number may contain a number of versions, check whether the parts still in production and have enough stocks, the optimal batch price, mass production will need to find an alternative material to prevent the original part out of stocks and procurement convenient, to check whether there exist design defects in Gerber, as well as the quality control of materials, solder paste and PCB boards. Every product design is the painstaking work of a team, and high-quality products will bring certain value and development to society.

The PCB assembly service of UETPCB includes turnkey PCB assembly, components sourcing, wire harness assembly, box building assembly, and electronic contract manufacturing. We have advanced assembly technology, efficient delivery, and focus on details of your requirements.

Our advantages of PCB assembly service:

• Strict testings for the product of turnkey PCB assembly
• Efficient components sourcing service
• Advanced wire harness assembly technology and high-quality wire harness assembly products
• Sate-out-of-art box build assembly technology and out standing box build assembly products
• Satisfying electronic contract manufacturing

The PCB fabrication and assembly services mainly include prototype PCB and turnkey PCB, insists on not treating customers’ products as experimental products and providing the best PCB manufacturing and PCB assembly service to our customers to keep long-term cooperation.

Doubtlessly, PCB, or even better called the printed circuit board is a vital part of the electronics sector. Lately, PCB manufacturing businesses have accepted the onus of adopting new methodologies into designing efficient and new printed circuit boards, designing layouts, and different building solutions for serving many businesses. But, no matter if you have unlimited or limited financing, the fundamental requirement is to watch out for a fantastic manufacturer of PCB manufacturing and assembly for the business or business.

A reliable PCB manufacturing and assembly company can provide lots of convenient for your business. It not only provides high-quality PCB manufacturing and assembly service to satisfy all your industrial needs, but also ships the products of printed circuit board assembly safely. And the after-service of PCB manufacturing and assembly is also included.

How to Pick a Reputable Printed Circuit Board Manufacturer?

Ordinarily, it’s not an easy task to be on the watch for a trusted and authentic PCB manufacturer on the current market, as now-a-days there are lots of PCB manufacturers that operate a sham printed circuit board assembly and PCB manufacturing company only for the sake of making extra cash. Thus, to prevent such scenarios it’s essential that you follow particular methods and guidelines that are discussed so you save yourself some trouble and a decent quantity of money on fraudulent actions.

To begin, it’d be wise in case you buy a listing of printed circuit board manufacturers you might believe are real dealers. It’s not hard to get such information from areas like business meetings trade shows. Trade displays are acquitted to offer interested clients an idea about the printed circuit board assembly and PCB manufacturing products and services they’re looking ahead to purchase or invest their cash in.

It is also possible to conduct an internet search online for PCB manufacturing businesses and gain access to different specifics about them.

If you’re conscious of particular businesses enlisted under code-compliance like DSCC, QPL, or QML listing, then you have enough advice to generate a follow-up. If these firms are found among the listing of code-compliant services, it’s known that the circuit board manufacturers have great criteria, the newest technologies, and higher quality steps for printed circuit board assembly and PCB manufacturing.

Another very best choice to approach for reputable manufacturers would be to watch out for neighborhood PCB manufacturing in your town. This is going to be a blessing for you as they may be readily achieved in the event of any issue or review processes.

If you’re a newcomer to the field, it’s best for you to take advice or help from experienced people since they may evaluate decent reliability and quality which are offered by the circuit board producers.

Now you’ve read all of the aforementioned quick strategies and tips concerning the ideal choice of PCB manufacturing it is also advisable in case you checked the manufacturer’s home floor facility. It’s very important to validate the history of the maker, the processes of analyzing they utilize, the on-time shipping facility they supply, and similar steps. These factors can allow you to find and finalize a fantastic maker for your organization and industrial demands.

A self contained module of connected electronic components creates a Printed. PCBs or published are shaped with the aid of a thin layer of conducting material, either printed onto the surface plank, or running substance. Along with also a PCB made with populated digital components is known as a printed circuit assembly (PCBA).

PCB Manufacturing should follow a particular process, keeping in mind all of the minute particulars of its layout. To do the invention of the board, you have to follow some measures. Following are some Actions involved in Circuit Board Manufacturing:

1. Installation– The practice of Circuit Board Manufacturing can certainly have a toll out of you, if not completed correctly. Thus, you have to care for some fundamental things like procedure, substance required, client specifications, and most importantly client’s satisfaction.
2. Patterning | Etching– Etching doesn’t actually mean engraving but must do anything with it. Inside this, copper and other unprotected regions are subjected by the etch resist picture to eliminate the unprotected aluminum. This leaves the aluminum pads and traces set up. However, newer and advanced processed usage laser or plasma etching rather than using substances for Circuit Board Manufacturing.
3. Engraving photographs– During this, a photograph mask is combined with chemical etching so as to subtract the aluminum areas from the published boards.
4. Multilayer Pressing– Among the most important measures in PCB Manufacturing. This entails aligning of conductive copper and insulating material di-electric layers. This is done in order to form a good plank material.
5. Drilling– Quite obviously, this entails drilling of holes and the info is on saved on the place, where the pit is assumed to be drilled.
6. Masking– A protective coating is applied within the aluminum, which has a thin coating of solder mask and aluminum traces round it. This is known as masking.
7. Finishing– During this, the mat areas are coated with a thin solder coating. This is done so as to prepare the board for wave soldering.
8. Electrical Testing– This is the last blow where you’re advised to look at the continuity or shorted PCB Manufacturing connections. To do it, you want to employ a voltage involving the points.

PCB manufacturing is the basic of printed circuit board assembly. All the electronic component need to be installed on a well performance printed circuit board. Therefore most PCB manufacturing and assembly manufacturer regard the PCB manufacturing as the basement of printed circuit board assembly. Every professional PCB manufacturing and PCB assembly manufacturer has both advanced PCB manufacturing technology, and the art-out-of-state printed circuit board assembly technology. PCB manufacturing provides an excellent PCB plank, and printed circuit board assembly make the final PCBs.

PCB Manufacturing takes each seconds detail in designing and Circuit Board Manufacturing is the first measure of PCB Manufacturing, which is completed very carefully.