
US Patent No: 5,410,163
Number of patents in Portfolio can not be more than 2000
Semi-conductor integrated circuit device including connection and disconnection mechanisms to connect and disconnect monitor circuit and semiconductor integrated circuit from each other
Stats
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Apr 25, 1995
Issued date -
Aug 29, 1994
filing date -
08/296,587
serial no -
In Force
status
Importance
Abstract
A monitor circuit provided in a chip in which a semiconductor integrated circuit is formed. Connection mechanisms and disconnection mechanisms are connected in series in wirings connected to the monitor circuit. Before using the semiconductor integrated circuit, in the state that the connection mechanisms are opened, the monitor circuit is tested without conducting the monitor circuit to the semiconductor integrated circuit. In the case of using the semiconductor integrated circuit, the connection mechanisms are written to close them, so that the monitor circuit is connected to the semiconductor circuit main body and is thus driven. Further, after using the semiconductor integrated circuit, the monitor circuit is separated from the semiconductor integrated circuit by writing the disconnection mechanisms, to be investigated for the characteristic.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,105,235 Semiconductor integrated circuit having light emitting MOS devices | 4 | 1990 | |
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| 4,800,418 Integrated circuit with improved monitoring function by use of built-in elements | 22 | 1985 | |
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| 5,025,298 Semiconductor structure with closely coupled substrate temperature sense element | 23 | 1989 | |
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| 5,200,919 Electrically-erasable, electrically-programmable read-only memory cell with a selectable threshold voltage and methods for its use | 18 | 1991 | |
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| 4,961,053 Circuit arrangement for testing integrated circuit components | 133 | 1988 | |