Plasma processing method and plasma processing apparatus

US9105451B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9105451-B2
Application numberUS-201113009278-A
CountryUS
Kind codeB2
Filing dateJan 19, 2011
Priority dateJan 19, 2011
Publication dateAug 11, 2015
Grant dateAug 11, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A plasma processing apparatus performs generating plasma only with the carrier gas without the supply of the processing gas after the end of processing to the substrate.

First claim

Opening claim text (preview).

What is claimed is: 1. A plasma processing apparatus comprising: a plasma generator configured to generate plasma within a vacuum container; a biasing power source configured to apply bias via a substrate holder on which a substrate to be processed within the vacuum container is loaded; gas supply sources configured to respectively supply processing gas and He gas as carrier gas into the vacuum container; and a controller configured to control the plasma generator, the biasing power source, and the gas supply sources, such that a plasma is generated with the carrier gas; wherein the controller is configured to and maintain the generated plasma so as to clean processed substances which have adhered to an inner wall of the vacuum container, and perform plasma continuation only with the carrier gas and without the supply of the processing gas, after the end of processing of the substrate. 2. The plasma processing apparatus according to claim 1 , wherein the controller is configured to execute the processing of the substrate by introducing the processing gas and applying the bias after the carrier gas is introduced and the generation of the plasma is set to ON, and when the processing of the substrate ends, execute carrying-out of the substrate after the application of the bias is set to OFF, the introduction of the processing gas is set to OFF, the introduction of the carrier gas is set to OFF, and the generation of the plasma is set to OFF. 3. The plasma processing apparatus according to claim 1 , wherein the controller is configured to execute the control maintaining the generated plasma only with the carrier gas and without the supply of the processing gas until the generation of the plasma is set to OFF after the introduction of the processing gas is set to OFF.

Assignees

Inventors

Classifications

  • Gas control, e.g. control of the gas flow · CPC title

  • Gas supply means · CPC title

  • Arrangement for selecting ions or species in the plasma · CPC title

  • Polarising the substrate · CPC title

  • Plasma immersion ion implantation · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9105451B2 cover?
A plasma processing apparatus performs generating plasma only with the carrier gas without the supply of the processing gas after the end of processing to the substrate.
Who is the assignee on this patent?
Makino Hiroyuki, Tanaka Masaru, Sumitomo Heavy Industries
What technology area does this patent fall under?
Primary CPC classification H01J37/32449. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 11 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).