Fishing – trapping – and vermin destroying
Patent
1990-12-18
1992-01-07
Hearn, Brian E.
Fishing, trapping, and vermin destroying
437915, 357 37, 357 38, 357 39, 148DIG140, H01L 4900
Patent
active
050791753
ABSTRACT:
Short circuits on the anode side of thyristors can be manufactured easily d inexpensively if a p-doped layer is first generated on the anode side. On it, after an oxide masking and structuring process, grooves (7) are produced, which extend into the base zone (1) of the thyristor on the anode side, in which the short-circuit areas are then generated. After the oxide has been removed, the anode electrode is applied, which contacts the p-doped layer and the short-circuit areas. As an alternative, the short-circuit areas may also be generated first through the openings of a structured oxide. Then, after removal of the oxide, the entire surface is p-doped, with the doping being less than that of the short-circuit areas. Then the anode electrode is applied.
REFERENCES:
patent: 4599633 (1986-07-01), Thire et al.
patent: 4607273 (1986-08-01), Sakurada et al.
patent: 4613381 (1986-09-01), Ogura
patent: 4662957 (1987-05-01), Halino
patent: 4729007 (1988-03-01), Coe
patent: 4742382 (1988-05-01), Jaecklin
patent: 4918509 (1990-04-01), Schlangenotto
patent: 4961099 (1990-10-01), Roggwiller
Schuh Gottfried
Schulze Hans-Joachim
Eupec Europaeische Gesellsch. F. Liestungshalbleiter mbH+Co. KG
Hearn Brian E.
Morris Jeffrey P.
Picardat Kevin M.
LandOfFree
Process for the manufacture of short circuits on the anode side does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the manufacture of short circuits on the anode side , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of short circuits on the anode side will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-822003