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:
Nov. 10, 2009
Filed:
May. 08, 2007
Joe R. Trogolo, Plano, TX (US);
Tathagata Chatterjee, Allen, TX (US);
Lily X. Springer, Dallas, TX (US);
Jeffrey P. Smith, Plano, TX (US);
Joe R. Trogolo, Plano, TX (US);
Tathagata Chatterjee, Allen, TX (US);
Lily X. Springer, Dallas, TX (US);
Jeffrey P. Smith, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Disclosed are apparatus and methods for designing electrical contact for a bipolar emitter structure. The area of an emitter structure () and the required current density throughput of an electrical contact structure () are determined. A required electrical contact area is determined based on the required current density, and the electrical contact structure is then designed to minimize the required electrical contact area with respect to the emitter structure area.