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On-chip substrate voltage generator |
| T954006 |
On-chip substrate voltage generator
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| Patent Drawings: | |
| Inventor: |
Lee, et al. |
| Date Issued: |
January 4, 1977 |
| Application: |
05/672,898 |
| Filed: |
April 2, 1976 |
| Inventors: |
Lee; James M. (Wappingers Falls, NY)
Sonoda; George (Poughkeepsie, NY)
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| Assignee: |
International Business Machines (Armonk, NY) |
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| U.S. Class: |
257/368; 327/581; 331/57 |
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| Abstract: |
disclosed is an apparatus for generating and controlling a desired substrate potential level or a semiconductor chip. A pulse source, such as an oscillator, provides a pulse train which, in combination with a control signal from the substrate voltage detector, selectively discharges a capacitor in a voltage level converter for obtaining a desired level of substrate potential. A feedback path through the substrate regulates the conductivity of a reference transistor in the substrate voltage detector providing the required control signal. |
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