Monolithic semi-custom IC having standard LSI sections and coupling gate array sections
US4858175A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1985 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Sep 27, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S257/923
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a monolithic semi-custom LSI, different types of standard LSI logic sections, each having a predetermined logic configuration and wiring pattern, and each serving as an independent LSI chip; glue circuits such as an SSI and an MSI which have design standards suitable for the same process conditions as those of the standard LSI logic sections, and which constitute a peripheral circuit section of the standard LSI logic sections; a mask pattern section having a wiring region for arbitrarily connecting terminals of the standard LSI logic sections and the peripheral circuit section, and a bonding pad section formed to surround the standard LSI logic sections and the peripheral circuit section to connect them to lead wires, are arranged to minimize the chip size. These constituting elements constitute common hardware as a master. The elements are connected through a single- or multi-layer wiring pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.