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Your Trusted EMS Partner

pcb assembly
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Professional pcba manufacturer pcb assembly service

PCB SMT assembly services
STG provides turnkey pcb assembly services, including BGA, COB, SMT, as well as through-hole assembly, electronic components procurement, IC programming, functional testing global services.
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PCBA&pcb assembly OEM manufacturer
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.

PCBA,pcb assembly
Our pcb assembly 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
PCBA,pcb assembly
Our pcb assembly craft capability
Laminate MaterialsFR4, high TG FR4, high frequency, alum, FPC
Board CuttingNumber of layers1-30
Min.thickness for inner layers0.003”(0.07mm)
(Cu thickness are excluded)
Board ThicknessStandard(0.1-4mm±10%)
Bow and twistno more than 7/1000
Copper WeightOuter Cu weight0.5-4 0z
Inner Cu weight0.5-3 0z
DrillingMin size0.0078”(0.2mm)
Drill deviation±0.002″(0.05mm)
PTH hole tolerance±0.002″(0.005mm)
NPTH hole tolerance±0.002″(0.005mm)
Solder MaskColorGreen,white,black,red,blue…
Min solder mask clearanace0.003″(0.07mm)
Min size0.006″(0.15mm)
Component SourcingYes
Tolerance of PCB±5%
Max Size of Finish Board700*460mm
MOQNO MOQ (1pcs)
Surface FinishHASL,ENIG,immersion silver,immersion tin,OSP…
PCB OutlineSquare,circle,irregular(with jigs)
Min Line/Space0.075/0.075mm

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                     flexible pcb assembly                                                     rigid-flex pcb assembly                                           aluminum pcb assembly

PCBA assembly online quote,pcb assembly quote.
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.