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:
Dec. 05, 1995
Filed:
Mar. 25, 1994
Applicant:
Inventors:
Emmerich Bertagnolli, Munich, DE;
Markus Biebl, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437228 ; 437 72 ; 437974 ; 1566531 ;
Abstract
In a method for manufacturing tunnel-effect sensors, a tip (2) composed of the silicon of the substrate (1) is produced on a substrate (1) of silicon with electrically conductively doped regions (4) by oxidation of the silicon using a nitride mask on the surface. Using the planarized oxide layer (5) produced in the oxidation step, a beam (3) of polysilicon that is anchored on the substrate (1) is applied, for example, over the tip (2) as a cooperating electrodes for the utilization of the tunnel effect and is electrically conductively doped. Subsequently, the oxide layer (5) is removed.