Layout for capacitor pair with high capacitance matching

Details Layout for capacitor pair with high capacitance matching Layout for capacitor pair with high capacitance matching

2006-11-01

2009-11-03

Thomas, Eric (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S303000

Reexamination Certificate

active

07612984

ABSTRACT:
An integrated circuit device includes a capacitor array, which includes unit capacitors arranged in rows and columns, wherein each unit capacitor is formed of two electrically insulated capacitor plates. The unit capacitors include at least one first unit capacitor in each row and in each column of the capacitor array; the at least one first unit capacitor being interconnected, wherein each row of the capacitor array comprises a same number of the at least one first unit capacitors as other rows and columns have, and wherein each column of the capacitor array comprises a same number of the at least one first unit capacitors as other rows and columns have. The unit capacitors further include at least one second unit capacitor in each row and in each column of the capacitor array, wherein the at least one second unit is interconnected and evenly distributed throughout the array.

REFERENCES:
patent: 2003/0183864 (2003-10-01), Miyazawa
patent: 2004/0031982 (2004-02-01), Devries et al.
patent: 2007/0001203 (2007-01-01), Lehr et al.
patent: 2008/0012092 (2008-01-01), Liang et al.
patent: 2008/0099879 (2008-05-01), Chen et al.

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