Semiconductor integrated circuit
US5892276A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Apr 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/30105
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit having three or more layers of wiring is provided with a plurality of lines of bonding pads arranged along the outer peripheral portion of a semiconductor chip. The bonding pads on the inner line side and those on the outer line side are arranged in a zigzag manner. First outgoing wiring for electrically connecting the bonding pads on the inner line side and internal circuits (input/output buffer circuits) is formed in one layer of wiring or a plurality of layers of wiring including at least the uppermost layer of wiring, and second outgoing wiring for electrically connecting the bonding pads on the outer line side and the internal circuits (the input/output buffer circuits) is formed in a plurality of layers of wiring other than the layer in which the first outgoing wiring is formed. Further, the first outgoing wiring and the second outgoing wiring are formed in different layers of wiring and at least one of the outgoing wiring films is formed of a plurality of layers of wiring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.