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Solar cell

  • US 5,330,584 A
  • Filed: 10/13/1992
  • Issued: 07/19/1994
  • Est. Priority Date: 10/17/1991
  • Status: Expired due to Term
First Claim
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1. A solar cell, comprising:

  • a first semiconductor region of a first conductivity type;

    a second semiconductor region of a second conductivity type in contact with said first semiconductor region so as to form a PN junction therebetween;

    a third semiconductor region of the first conductivity type in contact with both said first and second semiconductor regions to form a bypass diode, said third semiconductor region having an impurity concentration higher than the impurity concentration of said first semiconductor region; and

    an electrode comprising a plurality of spaced apart elements formed on a surface of said second semiconductor region,wherein said third semiconductor region includes a plurality of island-like regions formed in said second semiconductor region each of said plurality of island-like regions being formed in the spaces between said spaced apart elements of said electrode without contacting said electrode.

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