Overcurrent preventive diode

Details Overcurrent preventive diode Overcurrent preventive diode

1989-10-16

1990-07-31

Carroll, J.

357 51, 357 71, 357 72, 357 81, H01L 2702, H01L 2348, H01L 2328, H01L 2302

Patent

active

049453980

ABSTRACT:
An overcurrent preventive diode comprises a diode chip sandwiched between respective bonding ends of first and second leads. The bonding end of the first lead is directly bonded to the diode chip into electrical conduction while being also kept in heat conduction with the chip. The bonding end of the second lead is held in heat conduction with the diode chip via a thin electrical insulating layer. The bonding end of the second lead and the insulating layer are shaped to expose an electrical connecting portion of the chip, thereby enabling the second lead bonding end to be electrically connected to the chip through a fusing wire which is designed to be melt-cut upon passage of a predetermined overcurrent.

REFERENCES:
patent: 3693048 (1972-09-01), Doversberger et al.
patent: 3832606 (1974-08-01), Furnival
patent: 3839660 (1984-10-01), Stryker
patent: 4169271 (1979-09-01), Saitoh
patent: 4547830 (1985-10-01), Yamauchi
patent: 4554574 (1985-11-01), Wright
patent: 4829403 (1989-05-01), Harding

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