Epitaxial growth method

US2015114282A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2015114282-A1
Application numberUS-201414582675-A
CountryUS
Kind codeA1
Filing dateDec 24, 2014
Priority dateDec 21, 2001
Publication dateApr 30, 2015
Grant date

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Abstract

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A method for growing an epitaxial film on a surface of a semiconductor wafer by mounting the wafer within a susceptor pocket and supplying source gas and carrier gas to the upper surface side of the susceptor and supplying carrier gas to the lower surface side of the susceptor. The susceptor includes a substantially circular bottom wall and a sidewall encompassing the bottom wall to form a pocket for mounting the wafer, wherein a plurality of circular through-holes are formed in the bottom wall in an outer peripheral region a distance of up to about ½ the radius toward the center of the bottom wall. The total opening surface area of the through-holes is 0.05 to 55% of the surface area of the bottom wall, the opening surface area of each through-hole is 0.2 to 3.2 mm 2 and the density of the through-holes is 0.25 to 25 per cm 2 .

First claim

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What is claimed is: 1 . An epitaxial growth method for growing an epitaxial film on a surface of a semiconductor wafer by mounting the semiconductor wafer within a susceptor pocket and supplying source gas and carrier gas to the upper surface side of the susceptor and supplying carrier gas to the lower surface side of the susceptor, wherein the susceptor comprises a substantially circular bottom wall and a sidewall encompassing the bottom wall to form a pocket for mounting the se…

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What does patent US2015114282A1 cover?
A method for growing an epitaxial film on a surface of a semiconductor wafer by mounting the wafer within a susceptor pocket and supplying source gas and carrier gas to the upper surface side of the susceptor and supplying carrier gas to the lower surface side of the susceptor. The susceptor includes a substantially circular bottom wall and a sidewall encompassing the bottom wall to form a pock…
Who is the assignee on this patent?
Sumco Corp
What technology area does this patent fall under?
Primary CPC classification C30B25/14. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Apr 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).