
Professional pcb assembly SMT assembly service
STG has a professional technical engineer team and rich experience in pcba processing, and strictly checks and analyzes the customer's BOM list and related
technical documents. The pcba processing services we provide start from the production of PCB circuit boards, select PCB manufacturers, and pay attention to
the quality of circuit boards and pcba quality control system. Perfect IPC, IPQC, OQA and other management processes, pcba processing services, clear job
responsibilities, and strict implementation of IPC electronic assembly acceptance standards.
STG adopts the industry's best multi-function placement machine, ten temperature zone reflow furnace configuration, equipped with wave soldering, BGA rework
station, AOI, X-RAY testing equipment, SMT daily production capacity of about 1 million pieces; daily average of 200,000 DIP plug-ins , Our product range covers
various fields, such as consumer electronics, telecommunications, home electronics, industrial products, automotive assembly, medical equipment, etc.

Our pcba services include:
1. PCBA, pcb assembly: SMT & PTH & BGA
2. PCBA and enclosure design
3. Components sourcing and purchasing
4. Quick prototyping
5. Plastic injection molding
6. Metal sheet stamping
7. Final assembly
8. Test: AOI, In-Circuit Test (ICT), Functional Test (FCT)
9. Custom clearance for material importing and product exporting

STG provides high-quality pcb assembly services, testing pcb printing quality, component placement quality and solder joint quality through automatic
optical inspection instruments
pcb production 1.NO MOQ 2.24 hours quick turn prototype 3.prototype&mass production 4.on time delivery 5.100% electrical test gurantee 6.competitive price ![]() | pcb assembly 1.SMT pcb assembly&PTH assembly 2.fine pitch BGA QFN smallest 0201 package 3.Bonding assembly 4.PCBA AOI&X-ray inspection 5.PCBA ICT function testing 6.no MOQ requirements 7.over 150 speedy samples can be processed within 1 8.working day 9.40 million to 80 million SMT points each month ![]() | one-stop turnkey service 1.PCBA components sourcing 2.SMT stencil 3.SMT&Through holes assembly 4.PCBA cable assembly 5.PCBA conformal coating 6.PCBA software programming 7.PCBA functional testing 8.PCBA enclosure assembly 9.PCBA customized packaging ![]() |
Introduction of our pcb assembly capability
Article | Description | Capability |
Laminate Materials | FR4, high TG FR4, high frequency, alum, FPC | |
Board Cutting | Number of layers | 1-30 |
Min.thickness for inner layers | 0.003”(0.07mm) | |
(Cu thickness are excluded) | ||
Board Thickness | Standard | (0.1-4mm±10%) |
Min. | Single/Double:0.008±0.004” | |
4layer:0.01±0.008” | ||
8layer:0.01±0.008” | ||
Bow and twist | no more than 7/1000 | |
Copper Weight | Outer Cu weight | 0.5-4 0z |
Inner Cu weight | 0.5-3 0z | |
Drilling | Min size | 0.0078”(0.2mm) |
Drill deviation | ±0.002″(0.05mm) | |
PTH hole tolerance | ±0.002″(0.005mm) | |
NPTH hole tolerance | ±0.002″(0.005mm) | |
Solder Mask | Color | Green,white,black,red,blue… |
Min solder mask clearanace | 0.003″(0.07mm) | |
Thickness | (0.012*0.017mm) | |
Silkscreen | Color | white,black,yellow,blue… |
Min size | 0.006″(0.15mm) | |
Component Sourcing | Yes | |
Tolerance of PCB | ±5% | |
Max Size of Finish Board | 700*460mm | |
MOQ | NO MOQ (1pcs) | |
Surface Finish | HASL,ENIG,immersion silver,immersion tin,OSP… | |
PCB Outline | Square,circle,irregular(with jigs) | |
Package | QFN,BGA,SSOP,PLCC,LGA | |
Sub-assembly | Plastic,metal,screen | |
Min Line/Space | 0.075/0.075mm |
pcb assembly type.
1.aluminum pcb assembly
2.flexible pcb assembly
3.rigid-flex pcb assembly
4.RF PCB
5.FR4 PCB
PCBA show

PCBA production equipment
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STG professional custom pcba manufacturer, Products and services are widely used in automotive, electric power, communications, aerospace, industrial control,



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PCBA OEM services,professional pcba manufacturer
Requested information for pcb assembly quote:
1. Gerber file of the bare PCB board
2. BOM (Bill of material) for assembly
To short the lead time, please kindly advise us if there is any acceptable components substitution
3. Testing Guide & Test Fixtures if necessary
4. Programming files & Programming tool if necessary
Welcome to your inquiry,no matter by call or by email.We will provide you with pcba solution and pcb assembly quote.