Abstract: A method for forming a semiconductor device provides for forming a gate region on top of a substrate. Gate sidewall liners are formed on opposed sides of the gate region, the sidewall liners having a vertical part contacting sidewalls of the gate region and a horizontal part contacting the substrate. Recessed spacers are formed on top of the sidewall liners. The sidewall liner underneath the spacers is pulled back from the edge of the respective spacer by a predetermined distance. The recessed spacers are formed by reducing the height of the originally formed spacer. The height of the spacers is lower than a height of the gate sidewall liner and the width of the horizontal part of the sidewall liner is shorter than the width of the spacer. The reduced spacer height reduces device channel stress.

Abstract: A CMOS structure including a Slim spacer and method for forming the same to reduce an S/D electrical resistance and improve charge mobility in a channel region, the method including providing a semiconductor substrate including a polysilicon gate structure including at least one overlying hardmask layer; forming spacers selected from the group consisting of oxide/nitride and oxide/nitride oxide layers adjacent the polysilicon gate structure; removing the at least one overlying hardmask layer to expose the polysilicon gate structure; carrying out an ion implant process; carrying out at least one of a wet and dry etching process to reduce the width of the spacers; and, forming at least one dielectric layer over the polysilicon gate structure and spacers in one of tensile and compressive stress.

Abstract: A method for forming a semiconductor device provides for forming a gate region on top of a substrate. Gate sidewall liners are formed on opposed sides of the gate region, the sidewall liners having a vertical part contacting sidewalls of the gate region and a horizontal part contacting the substrate. Recessed spacers are formed on top of the sidewall liners. The sidewall liner underneath the spacers is pulled back from the edge of the respective spacer by a predetermined distance. The recessed spacers are formed by reducing the height of the originally formed spacer. The height of the spacers is lower than a height of the gate sidewall liner and the width of the horizontal part of the sidewall liner is shorter than the width of the spacer. The reduced spacer height reduces device channel stress.

Abstract: A semiconductor device includes a substrate and a gate region on top of a substrate. First and second gate sidewall liners are situated on first and second sides of the gate region respectively, the first and second sidewall liners having a vertical part contacting sidewalls of the gate region and a horizontal part contacting the substrate. First and second recessed spacers are situated on top of the first and second sidewall liners respectively. The height of the first and second spacers is lower than the height of the gate sidewall liner whereas the width of the horizontal part of the sidewall liner is shorter than the width of the spacer.

Abstract: A CMOS structure including a Slim spacer and method for forming the same to reduce an S/D electrical resistance and improve charge mobility in a channel region, the method including providing a semiconductor substrate including a polysilicon gate structure including at least one overlying hardmask layer; forming spacers selected from the group consisting of oxide/nitride and oxide/nitride oxide layers adjacent the polysilicon gate structure; removing the at least one overlying hardmask layer to expose the polysilicon gate structure; carrying out an ion implant process; carrying out at least one of a wet and dry etching process to reduce the width of the spacers; and, forming at least one dielectric layer over the polysilicon gate structure and spacers in one of tensile and compressive stress.

Abstract: A semiconductor device and the method for making same is disclosed. The semiconductor device has a substrate and a gate region on top of the substrate. It further has a first and second gate sidewall liners situated on a first and second sides of the gate region respectively, the first and second sidewall liners having a vertical part contacting sidewalls of the gate region and a horizontal part contacting the substrate; and a first and second recessed spacers situated on top of the first and second sidewall liners respectively, wherein a height of the first and second spacers is lower than a height of the gate sidewall liner and wherein the width of the horizontal part of the sidewall liner is shorter than the width of the spacer.