Method for packaging target material and method for mounting target
First Claim
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1. A packaged sputtering target comprising:
- a backing plate including a mounting portion for a placement portion;
a sintered body fixed to the backing plate; and
a package attached to the backing plate so as to surround the sintered body without covering the mounting portion,wherein an inside of the package is filled with a gas having a dew point that is less than or equal to −
40°
C.,wherein the sintered body comprises indium, gallium, and zinc,wherein the package includes a valve, andwherein the package comprises a metal plate, a metal foil, or a polymer film.
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Abstract
It is an object to provide a method for packaging a target material with which a thin film that is less contaminated with an impurity in the air such as a compound containing a hydrogen atom can be formed. In addition, it is an object to provide a method for mounting a target with which a thin film that is less contaminated with an impurity can be formed. In order to achieve the objects, a target material in a target is not exposed to the air and kept sealed after being manufactured until a deposition apparatus on which the target is mounted is evacuated.
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Citations
17 Claims
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1. A packaged sputtering target comprising:
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a backing plate including a mounting portion for a placement portion; a sintered body fixed to the backing plate; and a package attached to the backing plate so as to surround the sintered body without covering the mounting portion, wherein an inside of the package is filled with a gas having a dew point that is less than or equal to −
40°
C.,wherein the sintered body comprises indium, gallium, and zinc, wherein the package includes a valve, and wherein the package comprises a metal plate, a metal foil, or a polymer film. - View Dependent Claims (2, 5, 12, 15)
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3. A method for packaging a sputtering target, comprising:
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fixing a sintered body to a backing plate including a mounting portion for a placement portion in an atmosphere in which dew point is less than or equal to −
40°
C.; andattaching a package to the backing plate so as to surround the sintered body without covering the mounting portion in the atmosphere in which the dew point is less than or equal to −
40°
C.,wherein the sintered body comprises indium, gallium, and zinc, wherein the package includes a valve, and wherein the package comprises a metal plate, a metal foil, or a polymer film. - View Dependent Claims (6, 7, 8, 13, 16)
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4. A method for mounting a packaged sputtering target, comprising:
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storing a target material in a package without covering a mounting portion for a placement portion in an atmosphere in which dew point is less than or equal to −
40°
C.;mounting the target material stored in the package on the placement portion in a deposition chamber of a deposition apparatus; evacuating the deposition chamber; filling the deposition chamber with an inert gas; and detaching the package in the deposition chamber after the evacuating, wherein the target material includes a sintered body and a backing plate, wherein the sintered body comprises indium, gallium, and zinc wherein the package includes a valve, and wherein the package comprises a metal plate, a metal foil, or a polymer film. - View Dependent Claims (9, 10, 11, 14, 17)
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Specification