Inquiry
Send Gerbers, a stack-up or even a sketch. We confirm the scope in writing before quoting.
A manufacturer you can audit
Chongshuo Electronics Technology Co., Limited (深圳市重硕电子科技有限公司) makes printed circuit boards and finished assemblies in Longhua District, Shenzhen. A board that is cheap on the quote and expensive in the field is the expensive board — so the specification is written down before production starts.
Founded
2016
July 29 · Shenzhen, Guangdong
Working days
Mon – Sat
9:00 – 18:30 (GMT+8)
Direct line
86-0755
21034652 · TEL / FAX
Payment
T / T
Bank of Communications (Hong Kong) Ltd.
Where our boards end up
One manufacturing discipline, seven markets. Pick an industry to see the structures we build for it.
Seven board families, one purchase order
Bare boards, component sourcing, assembly and test from a single supplier — no handoff between two factories, no gap in the paperwork.
Rigid PCB
Structure
Rigid FR-4, single, double or multilayer stack
Layers
1–32 layers
Flexible PCB
Structure
Polyimide flex, static or dynamic
Layers
1–8 layers
Rigid-Flex PCB
Structure
Rigid and flex zones in one board
Layers
2–16 layers (rigid and flex combined)
HDI PCB
Structure
Sequential lamination with laser microvias
Layers
4–20 layers
Metal-Core PCB
Structure
Aluminium or copper base core
Layers
1–4 layers
Heavy Copper PCB
Structure
Plated heavy copper, low layer count
Layers
1–8 layers
PCB Assembly
Structure
SMT and through-hole, built and tested
Layers
SMT + THT (board layers per drawing)
From Gerber to delivery
Eight checkpoints between your files and your receiving dock — you always know which one your order is at.
DFM Review
Engineers check your design against our process and flag real manufacturability risks.
Quotation
Itemised pricing by layer count, material, copper weight, finish and lead time.
Engineering
Stack-up, impedance rules, drill and routing data prepared and confirmed with you.
Production
Laminate, imaging, etching, drilling, plating and solder mask, exactly to the approved spec.
Inspection
AOI and electrical test on every board, plus dimensional checks against the drawing.
Assembly & Test
Optional SMT and through-hole assembly, firmware programming and functional test.
Delivery
Packed, documented and shipped door to door on EXW, FOB or DDP terms.
Quality that survives audit
Inspection is not a final box to tick. It is a series of checks that runs alongside the job, from incoming material to the packed box.
- Incoming material inspectionEvery laminate and copper foil lot is checked and recorded before it enters production.
- AOI on every panelAutomated optical inspection catches missing or misaligned features the eye misses.
- Electrical test on every boardOpens and shorts are tested against your netlist, not sampled.
- Lot-level traceabilityEach shipment can be traced back to its material lots and production dates.
What ships with your order
Stack-Up ReportLayer structure, dielectric thickness and finished copper weight as built.
Impedance ReportCoupon-tested controlled impedance where the design specifies it.
Material CertificateLaminate and copper foil supplier certificates, supplied with the order.
Inspection ReportAOI, electrical test and dimensional results per production lot.
Assembly BOMComponent list with every substitution flagged and approved before use.
Test ReportFunctional and programming test results for assembled boards.
Technical guides & industry notes
Practical notes on designing and buying PCBs — written for engineers, not marketers.
How Layer Count Actually Changes the Price of a PCB
Why the jump from four to six layers costs more than twice as much as the first four — and where the money goes.
Read the guide
Eight DFM Checks That Prevent the Most Expensive Rework
The clearance, hole and copper-balance problems that get caught on the CAM bench — and the ones that still get through.
Read the guide
Rigid-Flex or HDI: Choosing a Structure for a Compact Device
Two routes to the same thin form factor — and the cost, yield and reliability trade-offs that come with each.
Read the guide
Start a conversation
Send us the files, not a vague description
Gerbers, a stack-up, or just the question you are stuck on. We answer inquiries during Monday to Saturday, 9:00–18:30 (GMT+8).