Title: Automotive alternator rectifier bridges

Abstract: An automotive alternator rectifier bridge comprising a pair of generally flat heat-conducting laminated bases each having a central layer of aluminum with layers of copper bonded to the opposite surfaces thereof. A plurality of first diodes have their cathodes solder-connected to one surface of one of the bases. The anodes of a plurality of second diodes are solder-connected to one surface of the other of these bases. Each diode is constituted by a discrete semiconductor chip having a metallic layer in ohmic contact with one face thereof and each diode is secured to one of the bases by having its metallic layer soldered to the laminated base. Electrical conductors are solder-connected to the anodes of the first diodes and to the cathodes of said second diodes and extend generally parallel to the bases for connection to automotive alternator terminals. Methods of fabricating these bridges are also described.

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Other info:

Inventors: Lynch, Jr., Peter F. (Attleboro, MA, US)
Delagi, Richard G. (Sharon, MA, US)
Haley, Richard E. (Plano, TX, US)

Application Number: 545644
Filing Date: 1975-01-30
Publication_date: 1976-09-07
Assignee: Texas Instruments Incorporated (Dallas, TX)
Primary Class(es): 363/145 228/123.1, 228/205, 257/E23.103, 257/E23.125, 257/E25.016, 310/68D
Other Classes:
US Patent Ref:

2691815	Oct, 1954	Boessenkool et al.	228/206.
2753623	Jul, 1956	Boessenkool et al.	228/205.
3684944	Aug, 1972	Evgrafov et al.	321/8.
3786556	Jan, 1974	Weston	228/123.
3870944	Mar, 1975	Ogawa et al.	310/68.
3895247	Jul, 1975	Iwata et al.	321/8.

Other Refs:
Primary Examiner: Goldberg, Gerald
Assistant Examiner:
Attorney: Haug; John A., McAndrews; James P., Baumann; Russell E.