Patent application number | Description | Published |
20080258229 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor device includes an N-type MOS transistor and a P-type MOS transistor. The N-type MOS transistor has a first gate insulating film and a first gate electrode. The P-type MOS transistor has a second gate insulating film and a second gate electrode. The first gate insulating film and the second gate insulating film are made of silicon oxynitride, and the first gate insulating film and the second gate insulating film are different from each other in nitrogen concentration profile. | 10-23-2008 |
20080283928 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - A semiconductor device comprises a first MIS transistor and a second MIS transistor. The first MIS transistor includes a first gate insulating film formed on a first active region, and a first gate electrode formed on the first gate insulating film. The second MIS transistor includes a second gate insulating film formed on a second active region and made of an insulating material different from that of the first gate insulating film, and a second gate electrode formed on the second gate insulating film. Upper regions of the first gate electrode and the second gate electrode are electrically connected to each other on the isolation region located between the first active region and the second active region, and lower regions thereof are separated from each other with a sidewall insulating film made of the same insulating material as that of the first gate insulating film being interposed therebetween. | 11-20-2008 |
20090039437 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor device includes a first gate electrode formed in a first region on a semiconductor substrate with a first gate insulating film sandwiched therebetween; and a second gate electrode formed in a second region on the semiconductor substrate with a second gate insulating film sandwiched therebetween. The first gate insulating film includes a first high dielectric constant insulating film with a first nitrogen concentration and the second gate insulating film includes a second high dielectric constant insulating film with a second nitrogen concentration higher than the first nitrogen concentration. | 02-12-2009 |
20090108379 | SEMICONDUCTOR DEVICE AND FABRICATION METHOD FOR THE SAME - The semiconductor device includes: a transistor having a gate electrode formed on a semiconductor substrate and first and second source/drain regions formed in portions of the semiconductor substrate on both sides of the gate electrode; a gate interconnect formed at a position opposite to the gate electrode with respect to the first source/drain region; and a first silicon-germanium layer formed on the first source/drain region to protrude above the top surface of the semiconductor substrate. The gate interconnect and the first source/drain region are connected via a local interconnect structure that includes the first silicon-germanium layer. | 04-30-2009 |
20090146215 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor device includes: a first gate insulating film on a first region of a semiconductor substrate; a first gate electrode on the first gate insulating film; a second gate insulating film on a second region of the semiconductor substrate; and a second gate electrode on the second gate insulating film. The first gate insulating film includes a first insulating film composed of a first material containing a first metal, and the second gate insulating film includes a second insulating film composed of the first material and a second material containing a second metal. | 06-11-2009 |
20090309165 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A semiconductor device including a first transistor of a first conductivity type provided on a first active region of a semiconductor region, and a second transistor of a second conductivity type provided on a second active region of the semiconductor region. The first transistor includes a first gate insulating film and a first gate electrode, the first gate insulating film contains a high-k material and a first metal, and the first gate electrode includes a lower conductive film, a first conductive film and a first silicon film. The second transistor includes a second gate insulating film and a second gate electrode, the second gate insulating film contains a high-k material and a second metal, and the second gate electrode includes a second conductive film made of the same material as the first conductive film, and a second silicon film. | 12-17-2009 |
20100059827 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A first and second gate electrodes are formed on a first and second active regions, respectively. The first and second gate electrodes have a first and second metal-containing conductive films, respectively. The first and second metal-containing conductive films are formed on the isolation region for segmenting the first and second active regions to be spaced apart from each other. A third metal-containing conductive film, which is a part of each of the first and second gate electrodes, is continuously formed from a top of the first metal-containing conductive film through a top of the isolation region to a top of the second metal-containing conductive film. The third metal-containing conductive film is in contact with the first and second metal-containing conductive films. | 03-11-2010 |
20100072523 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A semiconductor device includes a first MIS transistor and a second MIS transistor. The first MIS transistor includes a first gate electrode includes a second metal film formed on a first gate insulating film, and an insulating film formed, extending over side surfaces of the first gate electrode and upper surfaces of regions located in the first active region laterally outside the first gate electrode. The second MIS transistor includes a second gate electrode including a first metal film formed on a second gate insulating film and a conductive film formed on the first metal film, and the insulating film formed, extending over side surfaces of the second gate electrode and upper surfaces of regions located in the second active region laterally outside the second gate electrode. The first and second metal films are made of different metal materials. | 03-25-2010 |
20110136331 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor device includes: a first gate insulating film on a first region of a semiconductor substrate; a first gate electrode on the first gate insulating film; a second gate insulating film on a second region of the semiconductor substrate; and a second gate electrode on the second gate insulating film. The first gate insulating film includes a first insulating film composed of a first material containing a first metal, and the second gate insulating film includes a second insulating film composed of the first material and a second material containing a second metal. | 06-09-2011 |
20110227168 | SEMICONDUCTOR DEVICE AND FABRICATION METHOD FOR THE SAME - The semiconductor device includes: a transistor having a gate electrode formed on a semiconductor substrate and first and second source/drain regions formed in portions of the semiconductor substrate on both sides of the gate electrode; a gate interconnect formed at a position opposite to the gate electrode with respect to the first source/drain region; and a first silicon-germanium layer formed on the first source/drain region to protrude above the top surface of the semiconductor substrate. The gate interconnect and the first source/drain region are connected via a local interconnect structure that includes the first silicon-germanium layer. | 09-22-2011 |
20110266629 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A semiconductor device including a first transistor of a first conductivity type provided on a first active region of a semiconductor region, and a second transistor of a second conductivity type provided on a second active region of the semiconductor region. The first transistor includes a first gate insulating film and a first gate electrode, the first gate insulating film contains a high-k material and a first metal, and the first gate electrode includes a lower conductive film, a first conductive film and a first silicon film. The second transistor includes a second gate insulating film and a second gate electrode, the second gate insulating film contains a high-k material and a second metal, and the second gate electrode includes a second conductive film made of the same material as the first conductive film, and a second silicon film. | 11-03-2011 |