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Rapid alteration of ion implant dopant species to create regions of opposite conductivity

  • US 4,385,946 A
  • Filed: 06/19/1981
  • Issued: 05/31/1983
  • Est. Priority Date: 06/19/1981
  • Status: Expired due to Term
First Claim
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1. A method of fabricating a semiconductor device having at least two regions of opposite conductivity by implanting ions generated in an ion gun and coupled through a mass filter comprising the steps ofcreating a plasma in said ion gun having ions consisting of at least two elements which provide dopants of opposite conductivity in said semiconductor device,adjusting the mass filter to couple the ions of one of said two elements to a first region of said semiconductor device, andreadjusting the mass filter to couple the second one of said two elements to a second region of said semiconductor device.

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