Abstract:
A first gate structure and a second gate structure are formed overlying a semiconductor substrate. A first protective layer is formed overlying the first gate structure and an associate source drain region. A first epitaxial layer is formed overlying the second source drain prior to removal of the first protective layer.
Abstract:
Removal chemistry solutions are described herein that include at least one low H 2 O content fluorine-based constituent and at least one solvent or solvent mixture. Removal chemistry solutions also include: hydrogen fluoride gas, and at least one solvent or solvent mixture. Methods are described herein for producing removal chemistry solutions that include providing at least one gaseous low H 2 O content fluorine-based constituent, providing at least one solvent or solvent mixture, and bubbling the at least one low H 2 O content fluorine-based constituent into the at least one solvent or solvent mixture to form the removal chemistry solution. Methods for producing removal chemistry solutions are also described that include: providing at least one low H 2 O content fluorine-based constituent, providing at least one solvent or solvent mixture, and blending the at least one low H 2 O content fluorine-based constituent into the at least one solvent or solvent mixture to form the removal chemistry solution. Additional methods of forming a removal chemistry solution include: providing at least one gaseous anhydrous fluorine-based constituent, providing at least one solvent or solvent mixture, and bubbling the at least one anhydrous fluorine-based constituent into the at least one solvent or solvent mixture to form the solution. Also, methods of forming a removal chemistry solution, as described herein include: providing hydrogen fluoride gas, providing at least one solvent or solvent mixture, and bubbling the hydrogen fluoride gas into the at least one solvent or solvent mixture to form the solution.
Abstract translation:本文描述了除去化学溶液,其包括至少一种低H 2 O 2含量的氟基组分和至少一种溶剂或溶剂混合物。 去除化学溶液还包括:氟化氢气体和至少一种溶剂或溶剂混合物。 本文描述了用于产生除去化学溶液的方法,其包括提供至少一种低含量H 2 O 2的低含量气态成分,提供至少一种溶剂或溶剂混合物,并鼓泡至少一种低H 将含O 2的含氟基成分加入到至少一种溶剂或溶剂混合物中以形成去除化学溶液。 还描述了用于产生除去化学溶液的方法,其包括:提供至少一种低H 2 O 2含量的氟基组分,提供至少一种溶剂或溶剂混合物,并将至少一种低H 将含O 2的含氟基成分加入到至少一种溶剂或溶剂混合物中以形成去除化学溶液。 形成去除化学溶液的其它方法包括:提供至少一种无水氟化基的气态成分,提供至少一种溶剂或溶剂混合物,并将至少一种无水氟基成分鼓泡到至少一种溶剂或溶剂混合物中 形成解决方案。 此外,如本文所述形成去除化学溶液的方法包括:提供氟化氢气体,提供至少一种溶剂或溶剂混合物,并将氟化氢气体鼓泡到至少一种溶剂或溶剂混合物中以形成溶液。
Abstract:
A solution for cleaning silicon semiconductors or silicon oxides, and methods for cleaning silicon semiconductors or silicon oxides using the solution, is disclosed. The solution includes hydrogen peroxide, ammonium hydroxide, an alkanolamine, and at least one of a tetraalkylammonium hydroxide, an alkanolamide, an amido-betaine, an c ca dihydroxyphenol, a carboxylic acid, a phosphonic acid, a chelating agent or a surfactant. The weight ratio of ammonium hydroxide to peroxide to water is between about 1:1:5 and 1:1-4:50, the weight ratio of ammonium hydroxide to water is between 1:5 and 1:50, and the molar ratio of component A to ammonium hydroxide is between 1:10 and 1:5000 is disclosed. The solution can achieve the efficiency equivalent to that of the conventional RCA two-step cleaning solution within a shorter time by one step preserving the silicon and silicon oxide substrate integrity and effectively remove contaminants such as organics, particles and metals from the surfaces of silicon semiconductors and silicon oxides without using strong acids such as HCI and sulfuric acid.
Abstract:
Disclosed herein is a composition and method for semiconductor processing. In one embodiment, a wet-cleaning composition for removal of photoresist is provided. The composition comprises a strong base; an oxidant; and a polar solvent. In another embodiment, a method for removing photoresist is provided. The method comprises the steps of applying a wet-cleaning composition comprising about 0.1 to about 30 weight percent strong base; about one to about 30 weight percent oxidant; about 20 to about 95 weight percent polar solvent; and removing the photoresist.
Abstract:
A method of manufacturing a semiconductor device (2) on a substrate (1), said semiconductor device comprising an active area (5, 6, 16) in the substrate (1) demarcated by spacers (10-13, 20-23) and arranged so as to contact an interconnect (29) including TiSi2; the method including, depositing an oxide layer (26) on the substrate (1); depositing and patterning a resist layer (27) on the oxide (26); reactive ion etching of the oxide (26) to demarcate the active area (5, 6, 16), using the patterned resist layer (27); removing the resist (27) by a dry strip plasma containing at least oxygen; depositing titanium(28) on the oxide (26) and the active area (5, 6, 16); forming the interconnect (29) as self-aligned TiSi2 by a first anneal, a selective wet etch, and a second anneal; the dry strip plasma including, as a second gaseous constituent, at least fluoride.
Abstract:
Methods are disclosed for gas-cluster ion-beam deposition of thin films on silicon wafers rendered free of native oxides by termination of the surface bonds and subsequent reactive deposition. Hydrogen termination of the surface of silicon renders it inert to reoxidation from oxygen-containing enviornmental gasses, even those found as residue in vacuum systems, such as those used to deposit films. Nitrogen termination improves the interface with overlying metal-oxide thin films. The film is formed in intimate contact with the silicon crystal surface forming a nearly ideal interface.
Abstract:
A process of treating a substrate having photoresist applied thereto, comprising the steps of: (a) removing said photoresist from said substrate by a method selected from the group consisting of photoresist stripping, plasma etch residue cleaning, or a combination thereof; and (b) rinsing said substrate with a non-corrosive rinsing composition comprising: (1) water; and (2) one or more water-soluble corrosion inhibitors selected from the group consisting essentially of hydroxylamine, at least one hydroxylammonium salt, at least one water-soluble organic acid, at least one amino acid, and combinations thereof.
Abstract:
Methods of depositing a film selectively onto a first material relative to a second material are described. The substrate is pre-cleaned by heating the substrate to a first temperature, cleaning contaminants from the substrate and activating the first surface to promote formation of a self-assembled monolayer (SAM) on the first material. A SAM is formed on the first material by repeated cycles of SAM molecule exposure, heating and reactivation of the first material. A final exposure to the SAM molecules is performed prior to selectively depositing a film on the second material. Apparatus to perform the selective deposition are also described.
Abstract:
Implementations of the present disclosure generally relate to methods and apparatuses for epitaxial deposition on substrate surfaces. More particularly, implementations of the present disclosure generally relate to methods and apparatuses for surface preparation prior to epitaxial deposition. In one implementation, a method of processing a substrate is provided. The method comprises etching a surface of a silicon-containing substrate by use of a plasma etch process, where at least one etching process gas comprising chlorine gas and an inert gas is used during the plasma etch process and forming an epitaxial layer on the surface of the silicon-containing substrate.