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US 2003/0223263 A1Published application
Variable capacitances for memory cells within a cell group
AssigneesInfineon Technologies AG, Kabushiki Kaisha Toshiba
InventorsMichael Jacob, Joerg Wohlfahrt, Norbert Rehm, Daisaburo Takashima
Life of this patent
Estimating the term…
Abstract
A memory chain with capacitors having different capacitances, depending on the location of the memory cell within the chain, is described. Varying the capacitances of the capacitors advantageously enables an effective capacitance for all memory cells within the chain to be about the same.
Claims11
An IC comprising:
- a plurality of memory cells, wherein a memory cell includes a capacitor coupled to a transistor in parallel, the plurality of memory cells coupled in series to form a chain group having first and second ends;
- a bitline coupled to the first end of the chain group;
- and
- wherein the capacitors of the memory cells have different capacitances to compensate for the different loads experienced by different memory cells within the group chain.
1 more element
Dependencies are inferred from the claim text.