Yingstar Electronics Co., Ltd.

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EMS OEM pcba assembly for smart watch circuit board , SMT PCB Assembly

Customer Reviews
We've been using Yingstar for the past 8 months. We decided to move our PCB production from the US to Yingstar to get our costs down.

—— David Duncan--President – SET

I have no doubt about YingStar being our best production partner, last time we made 3000 units of our boards, only several pcs have some small issues.

—— Jaber Rahoutei--CEO

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Turnkey PCB Assembly

Turnkey PCB Assembly Sample Introduction

EMS OEM pcba assembly for smart watch circuit board , SMT PCB Assembly

China EMS OEM pcba assembly for smart watch circuit board , SMT PCB Assembly Supplier
EMS OEM pcba assembly for smart watch circuit board , SMT PCB Assembly Supplier EMS OEM pcba assembly for smart watch circuit board , SMT PCB Assembly Supplier

Large Image :  EMS OEM pcba assembly for smart watch circuit board , SMT PCB Assembly

Product Details:

Place of Origin: China
Brand Name: YINGSTAR
Certification: UL/ROHS/CE
Model Number: YING2.30

Payment & Shipping Terms:

Minimum Order Quantity: 5 pcs
Price: negotiation
Packaging Details: Anti-static bag + Anti-static bubble wrap + Good quality carton box
Delivery Time: 15 working days
Payment Terms: Western Union, T/T
Supply Ability: 200,000pcs per month
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Detailed Product Description



EMS OEM pcba assembly for smart watch circuit board SMT PCB Assembly




For PCB Circuit Board manufacturing, Yingstar has been verified by SGS. The layer count of this PCB Circuit Board is 4 layers and it was made with Rogers board material with only 1.2 mm board thickness. And The minimum Line width and space of the PCB is 0.1 mm.




The 5 types PCB Assembly options we offer:

  • Prototype PCB Assembly
  • Low-Volume PCB Assembly
  • Consigned PCB Assembly
  • High Volume PCB Assembly
  • Fully Turnkey PCB Assembly

For full turn-key, we take care of the entire process, including PCB fabrication, procurement of components, SMD&THT assembly, continuous monitoring of quality and final assembly. Whereas for partial turn-key, the customer can provide the PCBs and certain components, and the remaining parts will be handled by us.we has modernized its PCB assembly services to offer a one-stop, turn-key PCB assembly service which includes parts, fabrication and assembly - reducing production costs while improving quality and convenience.



Technical Capabilities
  Supported Capabilities
Type of assembly · THD (Thru-hole device) / Conventional
· SMT (Surface-mount technology)
· SMT & THD mixed
· Double-sided SMT and/or THD assembly
Order quantity · 1 to 100,000
Components · Passives, smallest size 01005
· Fine pitch to 04 Mils
· Leadless chip carriers/ BGA, VFBGA, FPGA & QFN
· Connectors and terminals
Component packaging · Reels
· Cut tape
· Tube
· Loose parts
Board dimensions · Smallest size: 0.25” x 0.25”, 6mm x 6mm
· Largest size: 15.75″ x 13.5″, 400mm x 340mm
Board type · Rigid
· Flexible
· Rigid-flexible
Solder Type · Leaded and Lead-Free
· Water soluble solder paste
· Manual soldering for special part, e.g. wires and temp sensitive parts.
Design file format · Gerber RS-274X, 274D, Eagle and AutoCAD’s DXF, DWG
· BOM (Bill of Materials,EXCEL format)
· Pick and Place file (XYRS)

Testing Procedures

We totally understand that bad quality products will bring our customers hugh loss and will damge both ours and our customers reputation, so we perform multiple quality assurance procedures before shipping out any of our board to guarantee our quality.

These testing methods include:

· Visual Inspection,

· X-Ray Inspection,

· AOI Inspection(Automated Optical Inpector),

· ICT test (In-circuit test), and

· Functional test (test modules need to be supplied).

For Functional test, we just need customers provide us the testing instructions and testing softwares, then we will design the testing fixtures, programme the chips and test the boards as instructed. In such ways, all boards quality can be guaranteed before delivery.






Q:What files do you use in bare pcb fabrication?

A:Gerber RS-274X,274D,Eagle and AutoCAD's DXF,DWG


Q:What format of Bom List you prefer?

A:We prefer in MS-Excel with Components Part No.,Manufacturer,Quantity,Value info, other format are also accepted.


Q:How can i know the processing about my PCBA order?

A:Each Customer will have a sale to contact with you. Eastwin working hours:AM 9:00-PM 6:00(Beijing Time) from Monday to Friday. we will reply your email in 2hours during our working time. And you also could contact with our sales by cellphone if urgent.


Q:How long will we get the quotation after providing pcb gerber file,completed bom list,part datasheet and PNP file?

A: The quotation will be sent in less than 2 work days, for some special components, you also could recommend supplier to us.


Q:If all PCBAs will be tested before delivery if we provide the function testing method?

A:Yes, we ensure that each piece of PCBA will be tested before shipment, we ensure the goods we sent with good quality.









Contact Details
Shenzhen Yingstar Electronics Co., Ltd.

Contact Person: Michael Dong

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