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:
Oct. 04, 1988
Filed:
Jun. 01, 1987
Applicant:
Inventor:
Thomas A Wetteroth, Scottsdale, AZ (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
437061 ; 437904 ; 437189 ; 148D / ; 357 13 ;
Abstract
A mesa Zener diode is described which is manufactured by ion implanting a region of opposite conductivity into a substrate; etching a moat in a surface of the substrate through the region of opposite conductivity; depositing an oxide layer having an opening exposing a portion of the mesa; and depositing top and bottom metals.