Method for fabricating semiconductor structure and structure of static random access memory
US7838946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2008 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Apr 4, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10B10/00
Abstract
A method for fabricating a semiconductor structure is disclosed. A substrate with a first transistor having a first dummy gate and a second transistor having a second dummy gate is provided. The conductive types of the first transistor and the second transistor are different. The first and second dummy gates are simultaneously removed to form respective first and second openings. A high-k dielectric layer, a second type conductive layer and a first low resistance conductive layer are formed on the substrate and fill in the first and second openings, with the first low resistance conductive layer filling up the second opening. The first low resistance conductive layer and the second type conductive layer in the first opening are removed. A first type conductive layer and a second low resistance conductive layer are then formed in the first opening, with the second low resistance conductive layer filling up the first opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.