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Title: Semiconductor switch geometry with electric field shaping

An optoelectric switch is disclosed that utilizes a cylindrically shaped and contoured GaAs medium or other optically active semiconductor medium to couple two cylindrically shaped metal conductors with flat and flared termination points each having an ovoid prominence centrally extending there from. Coupling the truncated ovoid prominence of each conductor with the cylindrically shaped optically active semiconductor causes the semiconductor to cylindrically taper to a triple junction circular line at the base of each prominence where the metal conductor conjoins with the semiconductor and a third medium such as epoxy or air. Tapering the semiconductor at the triple junction inhibits carrier formation and injection at the triple junction and thereby enables greater current carrying capacity through and greater sensitivity of the bulk area of the optically active medium.
Inventors:
 [1];  [1]
  1. (Livermore, CA)
Issue Date:
OSTI Identifier:
869464
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
Patent Number(s):
US 5341017
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
semiconductor; switch; geometry; electric; field; shaping; optoelectric; disclosed; utilizes; cylindrically; shaped; contoured; gaas; medium; optically; active; couple; metal; conductors; flat; flared; termination; ovoid; prominence; centrally; extending; coupling; truncated; conductor; causes; taper; triple; junction; circular; line; base; conjoins; third; epoxy; air; tapering; inhibits; carrier; formation; injection; enables; current; carrying; capacity; sensitivity; bulk; shaped optical; cylindrically shaped; current carrying; metal conductor; electric field; optically active; field shaping; active medium; semiconductor switch; carrying capacity; active semiconductor; metal conductors; metal conduct; /257/