Fishing – trapping – and vermin destroying
Patent
1992-10-13
1994-02-08
Hearn, Brian E.
Fishing, trapping, and vermin destroying
437922, 437918, 148DIG136, 148DIG55, H01L 2126
Patent
active
052847942
ABSTRACT:
A semiconductor device has a thin-film resistor trimmed by laser. The semiconductor device comprises a semiconductor substrate having an element region that covers at least part of the surface of the semiconductor substrate, a first insulation film disposed on the surface of the semiconductor substrate, and a second insulation film disposed on the surface of the semiconductor substrate through an opening of the first insulation film. The opening is formed by selectively removing at least part of the first insulation film at a location on the surface of the semiconductor substrate where the element region is not involved. The thin-film resistor is formed on the second insulation film.
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Iida Makio
Isobe Yoshihiko
Kajiura Keizou
Miura Shoji
Saito Masami
Fleck Linda J.
Hearn Brian E.
Nippondenso Co. Ltd.
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