Patent application number | Description | Published |
20110115016 | SEMICONDUCTOR DEVICE - A semiconductor device includes a substrate with one or more active regions and an isolation layer formed to surround an active region and to extend deeper into the substrate than the one or more active regions. The semiconductor further includes a gate electrode, which covers a portion of the active region, and which has one end ;portion thereof extending over the isolation layer. | 05-19-2011 |
20110115020 | SEMICONDUCTOR DEVICE - A semiconductor device includes a second conductive-type deep well configured above a substrate. The deep well includes an ion implantation region and a diffusion region. A first conductive-type first well is formed in the diffusion region. A gate electrode extends over portions of the ion implantation region and of the diffusion region, and partially overlaps the first well. The ion implantation region has a uniform impurity concentration whereas the impurity concentration of the diffusion region varies from being the highest concentration at the boundary interface between the ion implantation region and the diffusion region to being the lowest at the portion of the diffusion region that is the farthest away from the boundary interface. | 05-19-2011 |
20110127612 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING SEMICONDUCTOR DEVICE - A semiconductor device includes: an active region configured over a substrate to include a first conductive-type first deep well and second conductive-type second deep well forming a junction therebetween. A gate electrode extends across the junction and over a portion of first conductive-type first deep well and a portion of the second conductive-type second deep well. A second conductive-type source region is in the first conductive-type first deep well at one side of the gate electrode whereas a second conductive-type drain region is in the second conductive-type second deep well on another side of the gate electrode. A first conductive-type impurity region is in the first conductive-type first deep well surrounding the second conductive-type source region and extending toward the junction so as to partially overlap with the gate electrode and/or partially overlap with the second conductive-type source region. | 06-02-2011 |
20130075857 | ISOLATION STRUCTURE, SEMICONDUCTOR DEVICE HAVING THE SAME, AND METHOD FOR FABRICATING THE ISOLATION STRUCTURE - An isolation structure of a semiconductor, a semiconductor device having the same, and a method for fabricating the isolation structure are provided. An isolation structure of a semiconductor device may include a trench formed in a substrate, an oxide layer formed on a bottom surface and an inner sidewall of the trench, a filler formed on the oxide layer to fill a part of inside of the trench, and a fourth oxide layer filling an upper portion of the filler of the trench to a height above an upper surface of the trench, an undercut structure being formed on a boundary area between the inner sidewall and the oxide layer. | 03-28-2013 |
20140021541 | SEMICONDUCTOR DEVICE - A semiconductor device includes a second conductive-type deep well configured above a substrate. The deep well includes an ion implantation region and a diffusion region. A first conductive-type first well is formed in the diffusion region. A gate electrode extends over portions of the ion implantation region and of the diffusion region, and partially overlaps the first well. The ion implantation region has a uniform impurity concentration whereas the impurity concentration of the diffusion region varies from being the highest concentration at the boundary interface between the ion implantation region and the diffusion region to being the lowest at the portion of the diffusion region that is the farthest away from the boundary interface. | 01-23-2014 |
20140021542 | SEMICONDUCTOR DEVICE - A semiconductor device includes a second conductive-type deep well configured above a substrate. The deep well includes an ion implantation region and a diffusion region. A first conductive-type first well is formed in the diffusion region. A gate electrode extends over portions of the ion implantation region and of the diffusion region, and partially overlaps the first well. The ion implantation region has a uniform impurity concentration whereas the impurity concentration of the diffusion region varies from being the highest concentration at the boundary interface between the ion implantation region and the diffusion region to being the lowest at the portion of the diffusion region that is the farthest away from the boundary interface. | 01-23-2014 |
20140030862 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING SEMICONDUCTOR DEVICE - A semiconductor device includes: an active region configured over a substrate to include a first conductive-type first deep well and second conductive-type second deep well forming a junction therebetween. A gate electrode extends across the junction and over a portion of first conductive-type first deep well and a portion of the second conductive-type second deep well. A second conductive-type source region is in the first conductive-type first deep well at one side of the gate electrode whereas a second conductive-type drain region is in the second conductive-type second deep well on another side of the gate electrode. A first conductive-type impurity region is in the first conductive-type first deep well surrounding the second conductive-type source region and extending toward the junction so as to partially overlap with the gate electrode and/or partially overlap with the second conductive-type source region. | 01-30-2014 |
20140151793 | SEMICONDUCTOR DEVICE - A semiconductor device includes a substrate with one or more active regions and an isolation layer formed to surround an active region and to extend deeper into the substrate than the one or more active regions. The semiconductor further includes a gate electrode, which covers a portion of the active region, and which has one end portion thereof extending over the isolation layer. | 06-05-2014 |
20140291767 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - A semiconductor device and a manufacturing method thereof are provided. The semiconductor device includes: a deep trench in a substrate; a sidewall insulating film on a side surface of the deep trench; an interlayer insulating film on the sidewall insulating film; and an air gap in the interlayer insulating film. | 10-02-2014 |