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, 1986
Filed:
Sep. 14, 1984
Applicant:
Inventors:
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
2957 / ; 29571 ; 29578 ; 2957 / ; 2957 / ; 148-15 ; 148175 ; 148188 ; 148D / ; 148D / ; 148D / ; 148D / ; 148D / ; 357 49 ; 357 59 ;
Abstract
A process is described for producing isolated semiconductor devices in a common substrate which have self-aligned and pre-located isolation walls, buried layers, and channel-stops. The isolation walls are formed from a stacked arrangement of a dielectric region and a non-single crystal semiconductor region, above a doped channel-stop region. A single mask layer determines the location and spacing of the non-single crystal portion of the isolation walls, the channel-stops, and the buried layers.