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:
May. 02, 2000
Filed:
Mar. 21, 1997
Jeffrey Scott Brown, Jeffersonville, VT (US);
Stephen Scott Furkay, South Burlington, VT (US);
Robert John Gauthier, Jr, Burlington, VT (US);
Xiaowei Tian, Essex Junction, VT (US);
Minh Ho Tong, Essex Junction, VT (US);
Steven Howard Voldman, South Burlington, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A semiconductor device and method of fabrication for such device in which a P- epitaxial layer is positioned above a P++ substrate. A P++ buried layer implant is positioned within the device between the P++ substrate and the P- epitaxial layer. A connecting p+ implant is placed within the epitaxial layer above the buried p+ blanket layer implant. In one exemplary embodiment, the device includes a shallow P-well with the P+ connecting implant in a position within the epitaxial layer connecting the shallow P-well and the buried P+ blanket implant layer.