PCB Assembly in Shenzhen China
Whether you need a few quick turn prototypes or a few thousand production boards, Sunking Circuits offers one-stop PCB assembly services for your boards at the scale you need.
PCBs assembled in China
SMT assembly
BGA assembly
Through-hole assembly
Mixed assembly
Rigid-flex printed circuit board assembly
Upload your BOM for an Online QuoteGeneral assembly capabilities
BGA, micro-BGA, QFN, CSP and any leadless devices up to .35mm pitch assembly with 100% 3D X-ray inspection
PCB components, including all types of BGAs, QFNs, CSPs, 0201, 01005, 08004, POP, and press fit components in small quantities
DFA process identifies almost all manufacturing issues before actual assembly saving production holdups
RoHS, leaded, indium, clean & no clean chemistries
Paste in-hole
De-ionized water cleaning of assembled boards
01Full turnkey PCBs
Sunking Circuits creates an unbroken thread from design to delivery. Receive a complete quote for fabrication, assembly, and components—entirely online. Our white-glove service brings your product to life.
02Partially consigned assembly
Some parts provided by the designer — we will source the rest. Sierra Circuits will work with your supply chain to get your PCBs assembled and to market quickly.
03Consigned assembly
All components are provided by the PCB designer. Sunking Circuits will fully assemble your PCBs and ship them to you. Quick turn times available, with fully transparent pricing.
One-stop PCB assembly services, capabilities, and testing
We source components from chip manufacturers across the globe, including Mouser, Digi-Key, Arrow Electronics and others. We also warehouse a significant inventory of
common parts. If we cannot source a specific component, our engineers will make recommendations for fair-price alternatives.
Assembly services
NPI: New product introductionSMT: Surface mount assembly, single & double-sidedPlated through-hole: Selective solderingMixed technologies: SMT, through-hole, electro-mechanical assemblyPCBA testing
Flying probe test including boundary scanFunctional test: Board & system level test including engineering support for developing test platformsEngineering services
DFM, DFT, DOEDevelop control plans & pFMEAValue add engineering services
Other value-add services
With our strategic partners, Sunking Circuits expertise extends to the following:
Reliability test includes temperature cycling
Wire bonding
Conformal coat
ICT: Develop test fixtures and testing with our key partners
Fully assembled PCBs that work the first time
Ready to ship in as quick as 24 hours
PCB designers and electrical engineers building prototypes or bringing products to market
Contract manufacturers who need fast, predictable lead times
Purchasing teams who require pricing and supply-chain transparency
Tinkerers, hobbyists, and builders who would benefit from the expertise of our in-house CAM engineers
Upload your BOM for an Online QuoteManufacturing Equipment at Sunking Circuits
Our 70,000 sqft state-of-the-art campus in the heart of Shenzhen CBD contains the most advanced equipment required for the manufacture and assembly of your PCBs. Whether you're looking for standard quick turn PCBs or boards with the tightest tolerances, made from exotic metals, there's a reason Sunking Circuits leads the industry in quality and performance.
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Get started with PCB Assembly
Sunking Circuits is capable of assembling BGA, micro-BGA, QFN and other leadless package parts. Whether you need 1 or 10,000 boards assembled, we make it easy for your project to come to life.
