PCB Assembly

SUNGHOM offers full Turn-Key and partial Turn-Key PCB Assembly Services.

In Full Turn-Key, we handle everything including making circuit boards, ordering components, quality inspection and final assembly. In partial Turn-Key, you can order the PCBs and partial components, we will fix the remaining parts for you. BOM must include the quantities, reference designators, and manufacturer name, part number.

Various testing method will be applied to the assembled boards before the final shipment.

  • Visual inspection: general quality check
  • X-ray Inspection: checks for BGAs, QFN and bare circuit boards
  • AOI Testing: checks for solder paste, 0201 components, missing components and polarity
  • ICT (In-Circuit Test)
  • Functional test (Following your test procedures)


SUNGHOM’s production facilities are ISO9001 certified to ensure we go beyond your expectations.

  • ISO9001 certified
  • IPC610-D Test specification
  • Pass rate ≥99.5%
  • Quality complaint rate ≤ 0.1%
No. Item Capacity
1 Assembly Type THD (Thru-Hole Device)
SMT (Surface-Mount Technology)
SMT & THD mixed
2 sided SMT and THD assembly
2 Order Quantity Protytpe, Medium, Mass Production
3 Parts Passives parts, smallest size 0201
Fine pitch to 8 Mils
BGA, uBGA, QFN,POP and Leadless chips
Connectors and terminals
4 Component Package Reels
Cut tape
Tube and tray
Loose parts and bulk
5 PCB dimensions Smallest size: 5*5mm
Largest size: 380*508mm
Largest size: 160*1500mm
6 PCB shape Rectangular
Slots and Cutouts
Complex and Irregular
7 PCB type Rigid PCB
Metal Core PCB
Flexible PCB, Rgid-Flex PCB
8 Assembly process Lead-Free (RoHS)
9 Production Time 9-15 Working Days for Prototype
16-21 Working Days for Medium Volume
22-31 Working Days for Mass Production