Integrated circuit power device with automatic removal of defective devices and method of fabricating same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 4, 1991
Issued Date -
N/A
app pub date -
May 23, 1990
filing date -
May 23, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An integrated circuit power device is disclosed having a large number of individual devices formed in an integrated circuit. Disabling devices are provided in the integrated circuit, a respective one of which is electrically connected to an associated one or more of the individual devices. Each of the disabling devices is responsive to a defect in the associated one or more individual devices, such as a short circuit, for automatically disabling the associated one or more individual devices. An operable integrated circuit power device is obtained, notwithstanding a defective one or more of the individual devices. Testing of individual devices, or customized mask generation is not necessary. In a preferred embodiment, the disabling device is a fusible link formed of a low melting point conductor. In response to the initial powering up of the device or in response to a gate pulse, all fusible links associated with short circuited individual devices will melt, thereby insulating the remainder of the devices from the short circuit.
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