Semiconductor storage unit
US6775198B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 25, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Feb 4, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Power to operates memory bank of DRAM stably is supplied with reduced power consumption. A semiconductor storage unit includes multiple arrays forming memory banks on a substrate, first and second power supplies. Multiple arrays are arranged like a matrix and surround the central region of the substrate. Each memory bank consists of two of the multiple arrays. Each first power supply supplies driving power to a peripheral circuit which drives each multiple array. Second power supplies are arranged at four corners of the central region, each supply provides access power to word lines which access the multiple arrays. The first power supplies are mounted to a central and the opposite side for predetermined arrays, serve as a main and an auxiliary power supply to provide main and auxiliary power (smaller than the main power), and provide distantly arranged two of the multiple arrays forming a memory bank with power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.