摘要:
A method for fabricating an integrated circuit with improved uniformity among the step heights of isolation regions is disclosed. The method comprises providing a substrate having one or more trenches; filling the one or more trenches; performing a chemical mechanical polishing on the one or more filled trenches, wherein each of the one or more filled trenches comprises a thickness; measuring the thickness of each of the one or more filled trenches; determining, based on the measured thickness of each of the one or more filled trenches, an amount of time to perform an etching process; and performing the etching process for the determined amount of time.
摘要:
A method for fabricating an integrated circuit with improved uniformity among the step heights of isolation regions is disclosed. The method comprises providing a substrate having one or more trenches; filling the one or more trenches; performing a chemical mechanical polishing on the one or more filled trenches, wherein each of the one or more filled trenches comprises a thickness; measuring the thickness of each of the one or more filled trenches; determining, based on the measured thickness of each of the one or more filled trenches, an amount of time to perform an etching process; and performing the etching process for the determined amount of time.
摘要:
A semiconductor structure and methods of forming the same are provided. The semiconductor structure includes a semiconductor substrate; a first inter-layer dielectric (ILD) over the semiconductor substrate; a contact extending from a top surface of the first ILD into the first ILD; a second ILD over the first ILD; a bottom inter-metal dielectric (IMD) over the second ILD; and a dual damascene structure comprising a metal line in the IMD and a via in the second ILD, wherein the via is connected to the contact.
摘要:
Provided is a method of fabricating a semiconductor device. A first hard mask layer is formed on a substrate. A second hard mask layer s formed the substrate overlying the first hard mask layer. A dummy gate structure on the substrate is formed on the substrate by using at least one of the first and the second hard mask layers to pattern the dummy gate structure. A spacer element is formed adjacent the dummy gate structure. A strained region on the substrate adjacent the spacer element (e.g., abutting the spacer element). The second hard mask layer and the spacer element are then removed after forming the strained region.
摘要:
Provided is a method of fabricating a semiconductor device. A first hard mask layer is formed on a substrate. A second hard mask layer s formed the substrate overlying the first hard mask layer. A dummy gate structure on the substrate is formed on the substrate by using at least one of the first and the second hard mask layers to pattern the dummy gate structure. A spacer element is formed adjacent the dummy gate structure. A strained region on the substrate adjacent the spacer element (e.g., abutting the spacer element). The second hard mask layer and the spacer element are then removed after forming the strained region.
摘要:
A semiconductor structure and methods of forming the same are provided. The semiconductor structure includes a semiconductor substrate; a first inter-layer dielectric (ILD) over the semiconductor substrate; a contact extending from a top surface of the first ILD into the first ILD; a second ILD over the first ILD; a bottom inter-metal dielectric (IMD) over the second ILD; and a dual damascene structure comprising a metal line in the IMD and a via in the second ILD, wherein the via is connected to the contact.
摘要:
Provided is a method of fabricating a semiconductor device including a high-k metal gate structure. A substrate is provided including a dummy gate structure (e.g., a sacrificial polysilicon gate), a first and second hard mask layer overlie the dummy gate structure. In one embodiment, a strained region is formed on the substrate. After forming the strained region, the second hard mask layer may be removed. A source/drain region may be formed. An ILD layer is then formed on the substrate. A CMP process may planarize the ILD layer using the first hard mask layer as a stop layer. The CMP process may be continued to remove the first hard mask layer. The dummy gate structure is then removed and a metal gate provided.
摘要:
Provided is a method of fabricating a semiconductor device including a high-k metal gate structure. A substrate is provided including a dummy gate structure (e.g., a sacrificial polysilicon gate), a first and second hard mask layer overlie the dummy gate structure. In one embodiment, a strained region is formed on the substrate. After forming the strained region, the second hard mask layer may be removed. A source/drain region may be formed. An ILD layer is then formed on the substrate. A CMP process may planarize the ILD layer using the first hard mask layer as a stop layer. The CMP process may be continued to remove the first hard mask layer. The dummy gate structure is then removed and a metal gate provided.