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Ion source for an ion implanter

  • US 4,719,355 A
  • Filed: 04/10/1986
  • Issued: 01/12/1988
  • Est. Priority Date: 04/10/1986
  • Status: Expired due to Fees
First Claim
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1. An ion source for an ion implanter, comprising:

  • a housing having an orifice at one end, and having a removable cap;

    a graphite crucible disposed within said housing, said crucible having a hollow interior for holding an ion source metal, having a channel formed into and along the side of the crucible, and having a hole for providing fluid communication between the interior and exterior of said crucible, said hole positioned above a portion of the interior in which the ion source metal is to be held, and said hole also positioned within said channel so that the interior of said crucible is in fluid communication with said orifice through said hole and along the side of said crucible in said channel, said crucible removable from said housing when said removable cap is removed therefrom; and

    a heater assembly for heating said crucible to a temperature at which said ion source metal will produce a vapor.

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