Technical Library: bga ball x-ray inspection criteria (Page 1 of 1)

Characterization of Solder Defects on Package on Packages with AXI Systems for Inspection Quality Improvement

Technical Library | 2016-05-30 22:24:00.0

As a part of series of studies on X-Ray inspection technology to quantify solder defects in BGA balls, we have conducted inspection of 3 level POP package by using a new AXI that capable of 3D-CT imaging. The new results are compared with the results of earlier AXI measurements. It is found that 3D measurements offer better defect inspection quality, lower false call and escapes.

Flex (Flextronics International)

Defect Features Detected by Acoustic Emission for Flip-Chip CGA/FCBGA/PBGA/FPBGA Packages and Assemblies

Technical Library | 2017-06-22 17:11:53.0

C-mode scanning acoustic microscopy (C-SAM) is a non-destructive inspection technique showing the internal features of a specimen by ultrasound. The C-SAM is the preferred method for finding “air gaps” such as delamination, cracks, voids, and porosity. This paper presents evaluations performed on various advanced packages/assemblies especially flip-chip die version of ball grid array/column grid array (BGA/CGA) using C-SAM equipment. For comparison, representative x-ray images of the assemblies were also gathered to show key defect detection features of the two non-destructive techniques.

Jet Propulsion Laboratory

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INSPECTION TECH
INSPECTION TECH

Our Company handle AOI (Auto Optical Inspection) and SPI (Solder Paste Inspection) Machines.

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