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:
Jan. 29, 1980
Filed:
Dec. 07, 1977
Yoshiaki Arimura, Yokohama, JP;
Tokyo Shibaura Electric Co., Ltd., Kawasaki, JP;
Abstract
To detect the position and inclination of an IC pellet with two position marks on its surface, the following steps are taken. First, an image of the IC pellet is focussed on the photosensitive surface of a television camera. Then, the photosensitive surface with said image is scanned with a small raster, thereby detecting the coordinate of a first position mark. Thereafter, the scanning raster is shifted to the second position mark and scans the same, thereby detecting the coordinate of the second position mark. A coordinate signal which corresponds to the detected coordinates of the first and second position marks is fed into an arithmetic operation device, which computes the central coordinate and angle of inclination of the IC pellet.