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:
Jun. 29, 1993
Filed:
Jul. 18, 1991
Applicant:
Inventor:
Wen-Doe Su, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
437 47 ; 437 52 ; 437 60 ; 437228 ; 437919 ;
Abstract
An improved method and resulting structures for producing a layered capacitor structure of memory cell of a DRAM device wherein a doped polysilicon spacer operates as a dopant source for an overlying polysilicon layer on the vertical and sharply inclined surfaces.