Chapter 7: Bga/Csp Inspection; Outline - Sharp IV-C35M User Manual

Chapter 7: BGA/CSP Inspection

7-1 Outline

Measure the center of gravity, area of each object, number of objects, and fillet
Purpose
diameter using a color that was emphasized by the color filter function.
Application Inspecting BGA/CSP solder balls.
Example
- Inspection procedure
Measurement of 6 balls
Object 0 Object 1
Object 3 Object 4
Image
Binary
capture
conversion
Area of each
Ball size
object
Distance between centers
of gravity for pairs of balls
Object 2
[Measurement results]
- Number of objects: K
- Area of each object: R0 to R127
- Distance between centers of
gravity:
(DX0, DY0) to (DX127, DY127)
- Fillet diameters: FX, FY
Object 5
Object identification
(numbering)
Distance between balls
Number of balls
7-1
BGA/CSP Inspection
Measure centers
of gravity
Fillet diameters
7