Agere Systems Assigned Patent for Bipolar Device Having Buried Contacts
(Targeted News Service Via Acquire Media NewsEdge) By Targeted News Service
ALEXANDRIA, Va., Feb. 16 -- Agere Systems, Wilmington, Del., has been assigned a patent (8,372,723) developed by Mark Dyson, Singapore, Daniel C. Kerr, Oak Ridge, N.C., and Nace M. Rossi, Singapore, for "bipolar device having buried contacts."
The abstract of the patent published by the U.S. Patent and Trademark Office states: "This disclosure, in one aspect, provides a method of manufacturing a semiconductor device that includes forming a collector for a bipolar transistor within a semiconductor substrate, forming a base within the collector, forming a patterned isolation layer over the collector and base, forming an emitter layer over the patterned isolation layer, forming an isolation layer over the emitter layer, patterning the patterned isolation layer, the emitter layer and the isolation layer to form at least one emitter structure having an isolation region located on a sidewall thereof, and forming a buried contact in the collector to a depth sufficient to adequately contact the collector."
The patent application was filed on Aug. 31, 2011 (13/222,877). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=8,372,723&OS=8,372,723&RS=8,372,723
Written by Satyaban Rath; edited by Hemanta Panigrahi.
(c) 2013 Targeted News Service
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