SinMicro Technology is major in printed circuit board assembly (PCBA) for more than 19 years. We can provide one-stop PCBA Service, Such as 0201/BGA/CCGA Surface-mount (SMT), Thru-hole (THT), mixed Technology (SMT & Thru-hole), Conformal Coating, Potting and Encapsulations, AOI/X-RAY PCBA Testing, IC Programming, Box Building Service, etc. The PCBA used in TELECOMMUNICATIONS, AUTOMOTIVE ELECTRONICS, 3G/4G/5G PRODUCTS, IOT Products, AI Smart Control Products, RF, NETWORKING, SECURITY, INDUSTRIAL CONTROL, MEDICAL, INSTRUMENTATION INSTRUMENTATION, MILITARY PRODUCTS, COMPUTER PERIPHERALS AND OTHER HIGH-TECH FIELDS. We have Great reputation from our customer around the world.


Item # Item Name PCBA Capability
1 Assembly Options  Surface Mount (SMT), Thru-Hole (THT), Box building, COB, Conformal Coating, Potting and Encapsulations ,IC PROGRAMMING &MARKING GRINDING & LETTERING
2 Types of Solder leaded and lead-free (RoHS Compliant) PCB assembly services
3 Stencils laser cut stainless steel stencils
4 Minimum Order 1 pieces
5 Component Size Passive Component: we can accept components as small as 01005, 0201,
BGA: We have the ability to handle BGA of 0.25mm pitch with X-ray testing.
Fine Pitch Parts: we can assemble 0.25mm fine pitch parts.POP(Package on Package), QFP,CCGA,CSP,etc.
Max Component Height: 25mm(SMT), Top 120mm/Bot 15mm (Wave-Solder)
8 Component Package We accept parts in Reels, Cut Tape, Tube & Tray, Loose Parts and Bulk.
9 Board Dimension Min Board Size: No Limited
Max Board Size: 680mm x 500mm
11 Board Shape We can assemble boards in Rectangular, Circular and any Odd Shapes.
12 Board Type Rigid PCB, Flexible PCB, Rigid-flex PCB, Metal PCB
13 Repair & Rework Repair and rework accepted. Our BGA reballing service with which we can safely remove the misplaced BGA, reball it and put it back on the PCB correctly. It is cost-effective.
14 Testing ICT, AOI, X-Ray, Function Test (FCT) ,Aging Test. 
15 Output 12SMT LINE 5DIP LINE 
16 Quality Standard IPC-A-610E,  ISO 13485:2003 ,ISO 16949:2011, ISO 14001:2004

Cooperative Partner




Execute a system that assures Total Customer Satisfaction             

QUALITY OBJECTIVE:  Product pass rate:>99%    Timely delivery rate:>98%   Customer complaint rate:<1%  Customer satisfaction rate:>98%   


MAN: strict employment rules; trainings for new employees; work license.

Machines:2D/3D test instrument, AOI scanning equipment, AOI analysis equipment, E-test line; automatic immersion copper line, automatic plating line and so on. 

MATERIAL: professional purchasing team; the ability of purchasing hard-to-get materials;Original factory formal agent channel.

Method: IPC-Ⅱ(if required, we can also do IPC-Ⅲ); operation instruments; production records. Milieu (meaning environment): strict control of the production environment on dust, temperature and humidity; dust-free room。  

The whole Process of IPQC (In - Process Quality Control) is a highlight of our detection thought, they adopted a set of based on IPC and ISO9001 international standard management system, and ensure that the product In accordance with the standard Process execution, post to set reasonable, clear responsibilities.IQC and IPQC quality control implementation in place.  

  • PCBA-Test

  • PCBA-Function Test

  • PCBA-Aging Test



ISO9001:2008 ︱  ISO14001:2004 ︱  UL ︱  CE ︱  ROSH︱ CQC  

Shenzhen SinMicro Technology Co., Ltd. suite of functional and testing capabilities ensures that building it right the first time, and delivering a solution that exceeds expectations.

AXI – 2D and 3D automated X-ray inspection

AOI – automated optical inspection

ICT – in-circuit test

ESS – environmental stress screening

EVT – environmental verification testing

FT – functional and system test

CTO – configure-to-order

Diagnostic and failure analysis

PCBA Manufacturing & Test

  • PCB CE Certification

  • PCB RoHS Certification

  • PCBA ISO9001 Certiciation EN

  • PCBA ISO9001 Certiciation CN



Q. What information do I need to provide to get a fast,accurate quote?

A.The more detailed the data that is supplied, the faster and more competitively we can quote. Please provide following information for getting a quote:

Gerber files of the bare PC board

BOM list to include: manufacturer's part number, type of part, packaging type, component locations and quantity

Dimensional specification for non-standard components

Assembly drawing

Final test procedures (if applicable)

In order to shorten the lead time, please advise us alternative parts (same specifications but different brand name)

Estimated order quantity

If possible, please send prototype/sample board/photo to us for further referenc



A.China has been described as “The World's Largest Factory” due to its advantageous economic manufacturing climate. The low production costs for electronics in China are well known. Leach has the solution for your organization to benefit from having a manufacturing source in China, and thus potentially increase your company’s profits margins. Electronic Manufacturing Solutions for Final Product or "Build-to-Print" Assemblies. 

Optima provides full turnkey solutions including

PCB Fabrication

PCB Assembly of Thru-Hole & Surface Mount Technology

Electro/Mechanical Assembly Cables & Harnessing

Press-fit connectors into high density PCBs & Backplanes

In-house programming

Potting, encapsulation, conformal coating

Full Functional Testing



Quality and Commitment  

We believe that we can supply any potential customer with quality and commitment second to none.

Care and Attention

We treat all customers with the same level of care and attention ensuring that delivery times are kept whilst adhering to customers specific requirements.  

Satisfy Your Requirements  

We believe that once you have visited our facility you will be in no doubt as to our ability to satisfy your requirements now and in the future.

Consider us, you will not be disappointed

A visit is well worth the effort. We can, if required, provide references from existing customers if you need an unbiased second opinion

We have professional team, specifically responsible people to take care of your every order.

We can offer special one-stop service that can save your much time.

We don’t have MOQ, small order and prototype request are welcomed too.

We provide fast samples and some of samples for free.

We will refund samples set-up cost when mass order  


For the PCB Prototype, PCB Allegro, and small volume PCB that we generally use the express way. For the medium-volume PCB that we generally use air freight or ocean freight according to delivery time.

Shenzhen SinMicro Technology Co., Ltd. ships using express couriers (DHL,Fedex,UPS,TNT ...), air freight and ocean freight. For small volume and Express PCB orders, post office express (EMS) and regular air mail are available. Customers are welcome to use their own couriers or freight forwarders to satisfy their logistics needs. However, such requests should be clearly stated when placing orders. For mass production orders, we offer CIF , FOB HK or other terms if you need.