METAL-OXIDE-METAL CAPACITOR ABLE TO REDUCE AREA OF CAPACITOR ARRAYS
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United States of America Patent
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Issued Date -
Feb 20, 2014
app pub date -
Aug 16, 2012
filing date -
Aug 16, 2012
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Abandoned
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Abstract
A metal-oxide-metal (MOM) capacitor able to reduce area of capacitor arrays is revealed. The MOM capacitor mainly includes at least three parallel conducting layers. Each parallel conducting layer consists of a first conductive plate, a second conductive plate disposed around the first conductive plate. There is a preset distance between the first conductive plate and the second conductive plate. The first conductive plates are electrically connected by at least one first via while the second conductive plates are electrically connected by at least one second via. Thereby, while being applied to capacitor arrays, the second conductive plates of the two adjacent MOM capacitors are connected together and shared with each other, so as to significantly reduce area of the capacitor array, improve circuit density and further optimize the layout efficiency of the chip design.
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