发明名称 |
Inspection system for cross-sectional imaging |
摘要 |
A method and apparatus for inspecting a bonded joint between components. A cross-sectional image of the joint is analyzed by determining the location of a first characteristic of the joint, the centroid of the joint in the cross-sectional image; and then measuring a second characteristic of the joint in reference to the location of the centroid. This measurement may be used by comparing it with a predetermined specification expected for the measurement for the purpose of determining the quality of the joint. The invention is particularly advantageous for studying cross-sectional X-ray images of solder joints between electronic components and substrata upon which they are mounted and can be implemented for analyzing the images produced in cross-sectional X-ray inspection machines such as scanned beam X-ray laminography systems or digital tomosynthesis systems.
|
申请公布号 |
US5719952(A) |
申请公布日期 |
1998.02.17 |
申请号 |
US19960645946 |
申请日期 |
1996.05.14 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ROOKS, STEPHEN MICHAEL |
分类号 |
G01B11/24;G01N23/00;G01N23/04;G01N23/18;G01R31/309;G06T7/00;H01L21/66;H05K3/34;(IPC1-7):G06K9/00 |
主分类号 |
G01B11/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|