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. 04, 2007
Filed:
Dec. 13, 2005
James S. Dunn, Jericho, VT (US);
Louis D. Lanzerotti, Burlington, VT (US);
Steven H. Voldman, South Burlington, VT (US);
James S. Dunn, Jericho, VT (US);
Louis D. Lanzerotti, Burlington, VT (US);
Steven H. Voldman, South Burlington, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A semiconductor device and a method of fabricating a semiconductor device having multiple subcollectors which are formed in a common wafer, in order to provide multiple structures having different characteristic and frequency response are provided. The subcollectors may be provided using different doses or different material implants resulting in devices having different optimum unity current gain cutoff frequency (f) and breakdown voltage (BVand BV) on a common wafer.