The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2003
Filed:
Nov. 10, 2000
Applicant:
Inventors:
Seow Hoon Tan, Singapore, SG;
Sreenivas Rao, Singapore, SG;
Assignee:
Semiconductor Technologies & Instruments, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/100 ;
U.S. Cl.
CPC ...
G01N 2/100 ;
Abstract
A semiconductor lead inspection device includes a camera and an illumination source for backlighting the leads of the semiconductor device to form an image in the camera. The camera and the illumination device are arranged on optical paths which alternatively pass through or are reflected by a beamsplitter. A surface is illuminated to backlight the leads and a light deflecting device is arranged for deflecting the backlit image of the semiconductor leads to form an image in the camera.