We totally understand that bad quality products will bring our customers huge loss and will damage both ours and our customers reputation, so we perform multiple quality assurance procedures before shipping out any of our board to guarantee our quality. 

These testing methods include:

· Visual Inspection,

· X-Ray Inspection,

· AOI Inspection(Automated Optical Inspector),

· ICT test (In-circuit test), and

· Functional test (test guide need to be supplied).

Automated Optical Inspection (AOI)

Range	Tolerance
Accuracy	±0.0024mm
Speed	5in²/sec(60FOV/sec)
PCB Max size	400mm*330mm
Available package	01005 and fine pitch

 

	Defect Type	AOI
Components	Lifted lead	√
	Missing components	√
	Misaligned/Misplaced components	√
Soldering	Open circuits	√
	Solder bridges	√
	Solder shorts	√
	Insufficient solder	√
	Excess solder	√

Automated X-Ray Inspection（AXI）

AXI is applied to test complicated circuit boards containing components with array-style packaging or fine pitch packaging including BGAs, CGAs (Column Grid Arrays), CSPs (Chip Size Package), etc. AXI is usually placed in the assembly process, just after the last soldering no matter wave soldering or reflow soldering. Furthermore, AXI is usually applied coupled with boundary scan test, ICT and functional test in order to obtain optimal inspection results. 

	Defect Type	AXI
Components	Lifted lead	√
	Missing components	√
	Misaligned/Misplaced components	√
Soldering	Open circuits	√
	Solder bridges	√
	Solder shorts	√
	Insufficient solder	√
	Solder void	√
	Solder quality	√
	Excess solder	√
BGA and CSP	BGA Shorts	√
	BGA open circuit connections	√

Functional Test (FCT)

For Functional test, we just need customers provide us the testing instructions and testing software, then we will design the testing fixtures, programme the chips and test the boards as instructed. In such ways, all boards quality can be guaranteed before delivery.

Chip Programming

And chip programming will be performed before the chips are mounted on the board. We support various package types including:

l         DIP, SDIP                            QSOP, SSOP

l         TSSOP, PLCC                     QFN, MLP

l         BGA, CSP                            SOT

l         SOP, MSOP                         TSOP

l         QFP, MLF                             DFN