10+ Years of Experience
Turnkey PCB Solution
From prototype to production, we deliver consistent quality, dependability, on-time delivery, and prompt responsiveness.
One-Stop Shopping PCB Manufacturing and Assembly
PCB manufacturing, components sourcing, PCB Assembly, all made under one roof.
Gerber Input
PCB Fabrication
Components Sourcing
SMT + Reflow Soldering
DIP + Wave Soldering
Inspection & Testing
Global Shipping
Parts Procurement
Most kinds of electronic components we can source, combine all our resources to you as one single source. From one single part number to whole BOM.Â
PCB Assembly
Flexible options, parts turnkey, kitted or consigned, or mixed, it’s up to you.
Laser Stencil
High accuracy Laser cutting stainless steel stencils, specially designed for a automatic high precision solder paste printing.
SMT + Reflow Soldering
High speed Fuji NXT III + AIMEX + XPF SMT mounter;Â Â Â Â Â Â Lead-free 12 Heating zones Nitrogen Reflow Oven.
DIP + Wave Soldering
Manual or automatic insertion, wave soldering; Post-welding; Senju solder paste.
Conformal Coating
A thin Polymeric film applied to the assembled PCB, to provide protection against moisture and other harsher conditions, fixture needed.
Cable & Wire harness Assembly
Customed high quality cables, wire harness according to the drawings, and assembly process.
Functional Testing
Work with customer closely on-site or off-site to run a software testing the PCBA functions.
Value-Added Services
From quick turnaround prototype to production, we have got you covered.
Free DFM Check
PCB Layout optimization, EQ confirmation, to improve production yield and cost reduction.
Quick turnaround PCB Manufacturing
As quick as 24 Hours for PCB Prototype manufacturing, small series as fast as 5~7 days.
Prototype PCB Manufacturing
No MOQ limit, PCB Prototype as less as one single piece. Even one piece we care.
HMLV Orders
Focus on High-Mix-Low-Volume PCB Manufacturing for more than 10 years.
Components Sourcing
Hard-to-find components sourcing; NRND components substitue; global network.
Quick turn PCB Assembly
24 Hours PCB Assembly upon all components secured.
About Union
Established in 2010, Union Circuits is well-known as a professional PCB manufacturer and exporter, dedicated to produce and sale Quick-turn, Prototype, small to medium volume PCBs. We have two PCB factories, one located in Shenzhen focus on prototype and small volumes PCB orders, another in Jiangmen of GuangDong, China focus on small to medium volumes. Both factories work seamlessly to offer our clients with the best services.
Our PCB Assembly services started in 2014, equipted with total 10 SMT lines including 4 for prototype PCB SMT and 6 full SMT lines for production. This expansion has enabled us to offer comprehensive solutions, from PCB fabrication to assembly, all under one roof, enhancing our service offerings and efficiency to the next nevel.
Let the Numbers Talk
Testimonial
Why Choose Us
What Sets Us Apart
Advanced Equipment
LDI Exposure, VCP Line, Vacuum Etching, AVI, 3D SPI, Fuji mounter, Online AOI, X-ray, etc...
Top Quality
Customer satisfaction rate >98%, quality always beyond your expect.
Strong Capability
Up to 48 Layer FR4, Rogers, Arlon, Taconic, Al/ Copper-based, flexible circuits, rigid-flex PCBs etc.
Superfast Lead time
Shenzhen Speed!! Quick turn Prototype as quick as 24 hours. Small to medium volume quickturn 5~7 wds.
Turnkey Solution
From PCB manufacturing, components sourcing to PCB Assembly, you do not need to find another source.
Flexible & Easy to talk
Flexible lead time with affordable prices, no hidden cost and always customer concern oriented.
Switch to Union
Free samples can be sent for qualification. Free tooling when you switch to us, for production orders only.
Request Info
Necessary information needed to get a real time online quotation.
In order to get a quick response about the RFQ, please specify the details.
- Request Quantity, Lead time.
- Gerber data with PCB fabrication notes and drawings.
- BOM list & pick and place date, BOM should indicate the MFG and MFG Part Number.
- Special requirement such as IPC Class III etc.
- Due to SPAM, emails like the following will NOT be treated: "We are interested in your product. Please send us your catalog and MOQ. Let us know your terms of payment and delivery time.", especially NOT sending by a company email address.