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:
Jul. 27, 1999
Filed:
Apr. 07, 1997
Applicant:
Inventor:
Margaret L Kniffin, Tempe, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257254 ; 257316 ; 257415 ; 7351432 ; 73754 ;
Abstract
A sensor device (40) is formed in a semiconductor substrate (41). The sensor device (40) includes a microstructure (60) that is free to move in response to a force. The microstructure (60) is overlying a floating gate structure (51) and a channel region (44). A guard ring (52) is formed around the floating gate structure (51) to retard the migration of charge onto the floating gate structure (51). This in turn stabilizes the operational performance of the sensor device (40) over time.
Quick Actions:
Kniffin, Margaret. (1999). Semiconductor floating gate sensor device (U.S. Patent No. 5929472). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5929472
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile