Fabrication technique using sputter etch and vacuum transfer

Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material

Reexamination Certificate

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C438S626000, C438S627000, C438S631000, C438S633000, C438S639000, C438S643000, C438S645000, C438S675000, C438S687000, C438S690000, C438S692000, C438S695000, C438S696000, C257SE21575, C257SE21583, C257SE21584, C257SE21585, C257SE21587

Reexamination Certificate

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07381638

ABSTRACT:
First material (106) is situated on the surface of a substructure (100and102) and in an opening (104), such as a Wench, that extends partway through the substructure. Second material (108) is situated on the first material in the opening. A physical sputter etch is performed on the structure while it is in a sputter etch module (206) to remove the parts of the first material overlying the substructure's surface and situated above the opening and to remove part of the second material overlying the first material in the opening so that remaining parts of the first and second materials are situated in the opening. The so-modified structure is transferred from the sputter etch module under a substantial vacuum, normally via a transfer module (202), to a deposition module (203, 204, or205) where a layer of third material is deposited over the substructure's surface and over the parts of the first and second materials in the opening.

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