Fishing – trapping – and vermin destroying
Patent
1987-06-29
1988-11-08
Weisstuch, Aaron
Fishing, trapping, and vermin destroying
437 2, 437 51, 437173, 437180, 437205, 136244, H01L 3118
Patent
active
047834218
ABSTRACT:
A method of fabricating spaced-apart back contacts on a thin film of semiconductor material by forming strips of buffer material on top of the semiconductor material in locations corresponding to the desired dividing lines between back contacts, forming a film of metal substantially covering the semiconductor material and buffer strips, and scribing portions of the metal film overlying the buffer strips with a laser without contacting the underlying semiconductor material to separate the metal layer into a plurality of back contacts. The buffer material serves to protect the underlying semiconductor material from being damaged during the laser scribing. Back contacts and multi-cell photovoltaic modules incorporating such back contacts also are disclosed.
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Carlson David E.
D'Aiello Robert V.
Dickson Charles R.
Solarex Corporation
Weisstuch Aaron
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