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. 13, 1984
Filed:
Nov. 12, 1981
Takao Kuroda, Osaka, JP;
Kenju Horii, Shiga, JP;
Matsushita Electronics Corporation, Osaka, JP;
Abstract
In the fabrication of a solid-state image sensor of the type having a plurality of photoelectric transducer means on a semiconductor substrate of one conductivity, excessive charge drain regions each provided with a plurality of first electrodes and second electrodes which function as a gate for controlling the drain of excessive charge, impurities or dopants of the other conductivity are introduced immediately below each of the regions at which the first electrodes are to be formed; thereafter, the first and second electrodes are formed; and impurities or dopants which are same as the above-described impurities or dopants are introduced while using the first and second electrodes as a masking pattern, whereby the photoelectric transducer means and drain regions are formed.