摘要:
The present invention provides a method for patterning a metal gate electrode and a method for manufacturing an integrated circuit including the same. The method for patterning the metal gate electrode, among other steps, includes forming a metal gate electrode layer (220) over a gate dielectric layer (210) located on a substrate (110), and patterning the gate electrode layer (220) using a combination of a dry etch process (410) and a wet etch process (510).
摘要:
The present invention provides a method for patterning a metal gate electrode and a method for manufacturing an integrated circuit including the same. The method for patterning the metal gate electrode, among other steps, includes forming a metal gate electrode layer (220) over a gate dielectric layer (210) located on a substrate (110), and patterning the gate electrode layer (220) using a combination of a dry etch process (410) and a wet etch process (510).
摘要:
A semiconductor device 100 comprising a gate structure 105 on a semiconductor substrate 110 and a recessed-region 115 in the semiconductor substrate. The recessed-region has a widest lateral opening 120 that is near a top surface 122 of the semiconductor substrate. The widest lateral opening undercuts the gate structure.
摘要:
The present invention provides a semiconductor device, a method of manufacture therefor, and a method for manufacturing an integrated circuit. The semiconductor device (100), among other possible elements, includes a first transistor (120) located over a semiconductor substrate (110), wherein the first transistor (120) has a metal gate electrode (135) having a work function, and a second transistor (160) located over the semiconductor substrate (110) and proximate the first transistor (120), wherein the second transistor (160) has a plasma altered metal gate electrode (175) having a different work function.
摘要:
A method for improving high-κ gate dielectric film (104) properties. The high-κ film (104) is subjected to a two step anneal sequence. The first anneal is performed in a reducing ambient (106) with low partial pressure of oxidizer to promote film relaxation and increase by-product diffusion and desorption. The second anneal is performed in an oxidizing ambient (108) with a low partial pressure of reducer to remove defects and impurities.
摘要:
The present invention pertains to forming a transistor in the absence of hydrogen, or in the presence of a significantly reduced amount of hydrogen. In this manner, a high-k material can be utilized to form a gate dielectric layer in the transistor and facilitate device scaling while mitigating defects that can be introduced into the high-k material by the presence of hydrogen and/or hydrogen containing compounds.
摘要:
The present invention provides a semiconductor device, a method of manufacture therefor, and a method for manufacturing an integrated circuit. The semiconductor device (100), among other possible elements, includes a first transistor (120) located over a semiconductor substrate (110), wherein the first transistor (120) has a metal gate electrode (135) having a work function, and a second transistor (160) located over the semiconductor substrate (110) and proximate the first transistor (120), wherein the second transistor (160) has a plasma altered metal gate electrode (175) having a different work function.
摘要:
Methods are disclosed for treating deposited gate dielectric materials, in which the deposited dielectric is subjected to one or more non-oxidizing anneals to densify the material, one or more oxidizing anneals to mitigate material defects, and to a nitridation process to introduce nitrogen into the gate dielectric. The annealing may be performed before and/or after the nitridation to mitigate deposition and/or nitridation defects and to densify the material while mitigating formation of unwanted low dielectric constant oxides at the interface between the gate dielectric and the semiconductor substrate.
摘要:
CMOS gate dielectric made of high-k metal silicates by passivating a silicon surface with nitrogen compounds prior to high-k dielectric deposition. Optionally, a silicon dioxide monolayer may be preserved at the interface.
摘要:
Fabricating a semiconductor structure includes establishing a non-stoichiometry associated with a dielectric layer, where the degree of non-stoichiometry corresponds to a nitrogen profile of the dielectric layer. Deposition of the dielectric layer outwardly from a substrate is controlled to substantially yield the established non-stoichiometry of the dielectric layer. Nitrogen is incorporated into the dielectric layer to substantially yield the nitrogen profile without nitridation of the interface.