Integrated circuit semiconductor devices including a metal oxide semiconductor (MOS) transistor
US10672764B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2018 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Oct 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/853
Abstract
A semiconductor device includes a first region having a first active pattern with first protrusion portions and first recess portions, and a second region having a second active pattern with second protrusion portions and second recess portions. First gate patterns are on the first protrusion portions. Second gate patterns are on the second protrusion portions. A first source/drain region is on one of the first recess portion of the first active pattern between two of the first gate patterns. The first source/drain region has a first reinforcing epitaxial layer at an upper portion thereof. A second source/drain region is on one of the second recess portions of the second active pattern between two of the second gate patterns. The second source/drain region has a second reinforcing epitaxial layer having an epitaxial growth surface that is shaped differently than a first epitaxial growth surface of the first reinforcing epitaxial layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.