Semiconductor devices including guard ring structures
US8928073B2 · kind B2 · utility
8Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2013 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Mar 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/038
Abstract
A semiconductor device includes a substrate partitioned into a cell region, a peripheral circuit region, and an interface region between the cell region and the peripheral circuit region. A guard ring is provided in the interface region of the substrate and surrounds the cell region. A first gate structure is in the cell region, and a second gate structure is in the peripheral circuit region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.