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. 28, 1992
Filed:
Jul. 13, 1988
Applicant:
Inventor:
Donald J Redwine, Houston, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 236 ; 357 59 ; 357 51 ; 437 52 ;
Abstract
A dynamic read/write memory cell for the one transistor N-channel silicon gate type is made by an improved process employing selective oxidation of polysilicon using. PN junction capacitors. A relatively flat surface results from the process, which is favorable to patterning small geometries. The PN junction storage capacitors have improved alpha particle protection. Metal-to-polysilicon gate contacts are made at silicide areas over polysilicon gates; the silicide lowers resistance of the poly elements.