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. 28, 1999
Filed:
Dec. 15, 1997
Han-Tzong Yuan, Dallas, TX (US);
Donald L Plumpton, Dallas, TX (US);
Jau-Yuann Yang, Richardson, TX (US);
Tae S Kim, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A vertical transistor (70) comprising a first semiconductor layer (14) of a first conductive type. A gate structure (32) of a second conductive type disposed on the first semiconductor layer (14). The gate structure (32) may include a plurality of gates (38) separated by channels (40). A second semiconductor layer (50) of the first conductive type may be disposed over the gate structure (32) and in the channels (40). An arresting element (36) may be disposed between and upper surface of the gates (38) and the second semiconductor layer (50). A void (52) may be formed in the second semiconductor layer (50) over the gate (38).