Variable capacitances for memory cells within a cell group

US6731529B2 · kind B2 · utility

Assignees

• Infineon Technologies AG · DE
• Kabushiki Kaisha Toshiba · JP

Inventors

• Michael Jacob · Munich, DE
• Joerg Wohlfahrt · Yokohama, JP
• Norbert Rehm · Apex, US
• Daisaburo Takashima · Kawasaki, JP

Key dates

• Filing date: Jun 4, 2002
• Grant date: May 4, 2004
• Expiry date: Jun 4, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10B12/315

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.