摘要:
A method for an integrated circuit structure includes providing a semiconductor substrate; forming a metallization layer over the semiconductor substrate; forming a first dielectric layer between the semiconductor substrate and the metallization layer; forming a second dielectric layer between the semiconductor substrate and the metallization layer, wherein the second dielectric layer is over the first dielectric layer; and forming a contact plug with an upper portion substantially in the second dielectric layer and a lower portion substantially in the first dielectric layer. The contact plug is electrically connected to a metal line in the metallization layer. The contact plug is discontinuous at an interface between the upper portion and the lower portion.
摘要:
A semiconductor device having multiple fin heights is provided. Multiple fin heights are provided by using multiple masks to recess a dielectric layer within a trench formed in a substrate. In another embodiment, an implant mold or e-beam lithography are utilized to form a pattern of trenches in a photoresist material. Subsequent etching steps form corresponding trenches in the underlying substrate. In yet another embodiment, multiple masking layers are used to etch trenches of different heights separately. A dielectric region may be formed along the bottom of the trenches to isolate the fins by performing an ion implant and a subsequent anneal.
摘要:
A semiconductor device and system for a hybrid metal fully silicided (FUSI) gate structure is disclosed. The semiconductor system comprises a PMOS gate structure, the PMOS gate structure including a first high-κ dielectric layer, a P-metal layer, a mid-gap metal layer, wherein the mid-gap metal layer is formed between the high-κ dielectric layer, the P-metal layer and a fully silicided layer formed on the P-metal layer. The semiconductor system further comprises an NMOS gate structure, the NMOS gate structure includes a second high-κ dielectric layer, the fully silicided layer, and the mid-gap metal layer, wherein the mid-gap metal layer is formed between the high-κ dielectric and the fully silicided layer.
摘要:
A semiconductor structure includes a semiconductor substrate having a first portion and a second portion. A first Fin field-effect transistor (FinFET) is formed over the first portion of the semiconductor substrate, wherein the first FinFET includes a first fin having a first fin height. A second FinFET is formed over the second portion of the semiconductor substrate, wherein the second FinFET includes a second fin having a second fin height different from the first fin height. A top surface of the first fin is substantially level with a top surface of the second fin. A punch-through stopper is underlying and adjoining the first FinFET, wherein the punch-through stopper isolates the first fin from the first portion of the semiconductor substrate.
摘要:
A semiconductor device having multiple fin heights is provided. Multiple fin heights are provided by using multiple masks to recess a dielectric layer within a trench formed in a substrate. In another embodiment, an implant mold or e-beam lithography are utilized to form a pattern of trenches in a photoresist material. Subsequent etching steps form corresponding trenches in the underlying substrate. In yet another embodiment, multiple masking layers are used to etch trenches of different heights separately. A dielectric region may be formed along the bottom of the trenches to isolate the fins by performing an ion implant and a subsequent anneal.
摘要:
A semiconductor device and system for a hybrid metal fully silicided (FUSI) gate structure is disclosed. The semiconductor system comprises a PMOS gate structure, the PMOS gate structure including a first high-κ dielectric layer, a P-metal layer, a mid-gap metal layer, wherein the mid-gap metal layer is formed between the high-κ dielectric layer, the P-metal layer and a fully silicided layer formed on the P-metal layer. The semiconductor system further comprises an NMOS gate structure, the NMOS gate structure includes a second high-κ dielectric layer, the fully silicided layer, and the mid-gap metal layer, wherein the mid-gap metal layer is formed between the high-κ dielectric and the fully silicided layer.
摘要:
A system and method for forming a semiconductor device with a reduced source/drain extension parasitic resistance is provided. An embodiment comprises implanting two metals (such as ytterbium and nickel for an NMOS transistor or platinum and nickel for a PMOS transistor) into the source/drain extensions after silicide contacts have been formed. An anneal is then performed to create a second silicide region within the source/drain extension. Optionally, a second anneal could be performed on the second silicide region to force a further reaction. This process could be performed to multiple semiconductor devices on the same substrate.
摘要:
A light emitting diodes (LEDs) is presented. The LED includes a stress-alleviation layer on a substrate. Open regions and stress-alleviation layer regions are formed on the substrate. Epitaxial layers are disposed on the substrate, at least in the open regions therein, thereby forming an LED structure. The substrate is diced through at least a first portion of the stress-alleviation regions, thereby forming the plurality of LEDs.
摘要:
A semiconductor structure includes a substrate and a conductive carrier-tunneling layer over and contacting the substrate. The conductive carrier-tunneling layer includes first group-III nitride (III-nitride) layers having a first bandgap, wherein the first III-nitride layers have a thickness less than about 5 nm; and second III-nitride layers having a second bandgap lower than the first bandgap, wherein the first III-nitride layers and the second III-nitride layers are stacked in an alternating pattern. The semiconductor structure is free from a III-nitride layer between the substrate and the conductive carrier-tunneling layer. The semiconductor structure further includes an active layer over the conductive carrier-tunneling layer.
摘要:
A method of forming a semiconductor structure includes providing a substrate; forming a buffer/nucleation layer over the substrate; forming a group-III nitride (III-nitride) layer over the buffer/nucleation layer; and subjecting the III-nitride layer to a nitridation. The step of forming the III-nitride layer comprises metal organic chemical vapor deposition.