Semiconductor device
US6175516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1999 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Jul 20, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A 64 Mb DRAM includes memory cell array areas 15, sense amplifier areas 16, subword driver areas 17, and cross areas 18. For each horizontal input/output line IOH parallel to the word line W, through holes on the sense amplifiers provide connections between the second metal line hierarchy M2 and the third metal line hierarchy M3. The vertical input/output line IOV parallel to the bit line BL runs through a plurality of memory cell array areas 15 in a direction parallel to the column selection signal line YS and connects to the main amplifier MA outside the memory cell array areas 15. In this input/output line configuration, the greater the number of word lines W that are selected, the greater the number of bits that can be output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.