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:
Apr. 23, 2002
Filed:
Oct. 17, 2000
Applicant:
Inventors:
Assignee:
Sentron AG, Zug, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/122 ;
U.S. Cl.
CPC ...
H01L 2/122 ;
Abstract
A pn-junction in a semiconductor element is made in that, within a zone of a first conductivity type, by means of implantation, a first and second zone of a second conductivity type are formed which are initially separated from each other, with subsequent diffusion processes, as a result of lateral diffusion, the first and second zones combine into a connected well, by means of implantation, a further zone of the first conductivity type is formed which completely overlaps the first zone of the second conductivity type and which is larger than the first zone, and which does not touch the second zone of the second conductivity type.