US Patent 7795047 Current balancing in NPN BJT and BSCR snapback devices

Patent 7795047 was granted and assigned to National Semiconductor on September, 2010 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

National Semiconductor

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7795047

Date of Patent

September 14, 2010

Patent Application Number

11016010

Date Filed

December 17, 2004

Patent Primary Examiner

‌

Steven Loke

Patent abstract

In a method and structure for current balancing the emitter current in a multi-finger n-emitter of a BJT or BSCR, back-end or polysilicon resistors are applied between the emitter fingers and the power rail, with the resistors chosen to be larger the closer the emitter fingers are to the collector.

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