Integrated circuit power device with transient responsive curren

Details Integrated circuit power device with transient responsive curren Integrated circuit power device with transient responsive curren

1992-08-12

1995-02-21

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transient responsive

361 91, 257529, H01L 2702

Patent

active

053921879

ABSTRACT:
An integrated circuit power device includes many cell blocks which are electrically connected in parallel, with each of the cell blocks including at least one cell such as a MOSFET, electrically connected in parallel. A transient responsive current limiting means, such as a resistor/capacitor circuit, is electrically connected to each cell block, so that the leakage current into defective cell blocks is maintained below a predetermined level without limiting the operating speed of the device. An operable integrated circuit power device is thereby obtained, notwithstanding a defective cell block. The circuit resistors are preferably formed using the same mask and material as the gate. The circuit capacitors and common gate electrode are preferably formed using the same mask and material as the source electrode. The use of common materials eliminates the need for extra fabrication steps.

REFERENCES:
patent: 4742425 (1988-05-01), Conzelmann et al.
patent: 4786958 (1988-11-01), Bhagat
patent: 4942308 (1990-07-01), Conzelmann et al.
patent: 4975782 (1990-12-01), Bauer
patent: 5021861 (1991-06-01), Baliga
patent: 5025298 (1991-06-01), Fay et al.
patent: 5097448 (1992-03-01), Segawa
patent: 5100829 (1992-03-01), Fay et al.
A Large Area MOS-GTO with Wafer-Repair Technique, M. Stoisiek et al., IEDM, 1987, pp. 666-669.
Modern Power Devices, B. Jayant Baliga, John Wiley & Sons, 1987, pp. 263-343.

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