X-ray Inspection of BGA
Glenbrook Technologies, Inc.
The more you know about x-ray…
The less you need to spend
Introduction
• How X-ray Works – Using X-ray with BGA Packages.
• Component Anatomy – What are you looking for?
• Defect Identification – What is considered a defect.
• Image Analysis – Making decisions based on images.
• Process Signatures – What are the images showing about
the process.
What is the role of x-ray in BGA
inspection?
Process Control.
X-ray inspection is a
powerful tool for process
development. After profiles
are established,
x-ray serves as a tool for
occasional audit.
Incoming QC.
X-ray is an ideal method of
checking incoming
components for defects and
bare boards to inspect
drilling quality.
detector
low density material
high density material
x-raysx-rays
image
X-ray imaging measures…
– presence or absence of material
– differences in material density
image
wedge object
x-rays
x-rays
detector
How Does X-ray Inspection Work ?
X-ray Camera
X-ray Imaging Path
X-ray Source
Image Processor
Video Monitor
Subject
X-rays