Capacitor with Switch and Circuit Containing Capacitor with Switch
OwnerMitsutoshi Sugawarainventor
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Abstract
The present application pertains to a circuit such that a capacitor within an IC or LSI can be switched by means of switch. The circuit has a plurality of circuits resulting from one end of capacitor that uses the wiring in an LSI being connected to a switch configured from a MOS transistor, and is characterized by the direction of the long sides (fingers) of the electrode of the capacitor being the same direction as that of the long side of the gate of the MOS transistor, and the repetition pitch when arranging a plurality thereof being identical to each other or an integer multiple of another.
Claims18
(canceled)
A capacitor-with-switch circuit consisting of:
- plural number of capacitors by using spaces between wiring materials on an LSI;
- MOS transistor switches connected to said each capacitor's first electrode respectively;
- wherein:
- fingers of said capacitor's electrodes and gates of said MOS transistors placed same direction, with same or integer multiple pitch of the others as tiles;
- drains of said MOS transistors connected to said first electrodes of said capacitors respectively;
- sources of said MOS transistors, having common-source structure shared with neighbor transistor(s), and connected together to a first node;
- gates of said MOS transistors, receiving switch control signal respectively;
- and each second electrode of said capacitor, connected together to a second node.
Dependencies are inferred from the claim text.