Electronic digital logic circuitry – Multifunctional or programmable – Array
Reexamination Certificate
2005-06-07
2005-06-07
Tran, Anh Q. (Department: 2819)
Electronic digital logic circuitry
Multifunctional or programmable
Array
C326S038000, C326S040000
Reexamination Certificate
active
06903572
ABSTRACT:
A switch circuit that is simple in constitution and capable of reliably controlling a switch cell is provided. Since the gate terminal G1of a transistor M1in a switch cell SC is connected only to the terminal37of a transistor M2,when the transistor M2is set to off, the moving path of the charge accumulated at the gate G1of the transistor M1is shut off. Consequently, even if the transistor M2is set to an on state and immediately set back to an off state, the transistor M1remains for some period of time in an on or off state corresponding to the switching data given through a bit line BL. It is possible to cause the transistor M1to remain in an on or off state for a specified period of time without disposing a specific circuit for temporary storing the switching data.
REFERENCES:
patent: 5898317 (1999-04-01), Gardner et al.
patent: 6025735 (2000-02-01), Gardner et al.
Fujimori Yoshikazu
Koyama Shinzo
Nozawa Hiroshi
Hogan & Hartson LLP
Rohm & Co., Ltd.
Tran Anh Q.
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