Thin film formation method

US9190271B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9190271-B2
Application numberUS-201414193277-A
CountryUS
Kind codeB2
Filing dateFeb 28, 2014
Priority dateMay 1, 2010
Publication dateNov 17, 2015
Grant dateNov 17, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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A thin film formation method to form an amorphous silicon film containing an impurity on a surface of an object to be processed in a process chamber that allows vacuum exhaust includes supplying a silane-based gas composed of silicon and hydrogen into the process chamber in a state that the silane-based gas is adsorbed onto the surface of the object without supplying an impurity-containing gas, supplying the impurity-containing gas into the process chamber to form the amorphous silicon film containing the impurity without supplying the silane-based gas, and performing the supplying of the silane-based gas and the supplying of the impurity-containing gas alternately and repeatedly such that the impurity reacts with the silane-based gas.

First claim

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What is claimed is: 1. A thin film formation method to form an amorphous silicon film containing an impurity on a surface of an object to be processed in a process chamber that allows vacuum exhaust, the method comprising: adsorbing a silane-based gas composed of silicon and hydrogen on the surface of the object by supplying the silane-based gas onto the surface of the object, while not supplying a gas containing the impurity into the process chamber, wherein the adsorbing of the…

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What does patent US9190271B2 cover?
A thin film formation method to form an amorphous silicon film containing an impurity on a surface of an object to be processed in a process chamber that allows vacuum exhaust includes supplying a silane-based gas composed of silicon and hydrogen into the process chamber in a state that the silane-based gas is adsorbed onto the surface of the object without supplying an impurity-containing gas,…
Who is the assignee on this patent?
Tokyo Electron Ltd
What technology area does this patent fall under?
Primary CPC classification H10P14/24. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).