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Process for continuously forming a large area functional deposited film by a microwave PCVD method and an apparatus suitable for practicing the same

Assignee: Canon Inc
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Filing: 1995-05-25
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Granted: 1998-02-03
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Expires: 2015-05-25
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Abstract

Abstract A microwave plasma CVD method for continuously forming a large area and length functional deposited film, the method comprises: continuously moving a substrate web in the longitudinal direction by paying out it by a pay-out mechanism and taking up it by a take-up mechanism; establishing a substantially enclosed film-forming chamber by curving and projecting said moving substrate web to form a columnar portion to be the circumferential wall of said film forming chamber on the way moving from said pay-out mechanism toward said take-up mechanism; introducing a film-forming raw material gas through a gas feed means into said film-forming chamber; at the same time, radiating a microwave energy in said film-forming chamber by using a microwave applicator means, which is so designed that it can radiate a microwave energy in the direction parallel to the microwave propagating direction, to generate microwave plasma in said film-forming chamber, whereby continuously forming a deposited film on the inner wall face of said continuously moving circumferential wall to be exposed to said microwave plasma. A microwave plasma CVD apparatus suitable practicing said method.

Inventors

  • 👤 Jinsho Matsuyama
  • 👤 Toshimitsu Kariya
  • 👤 Yasushi Fujioka
  • 👤 Tetsuya Takei
  • 👤 Katsumi Nakagawa
  • 👤 Masahiro Kanai
  • 👤 Hiroshi Echizen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 07:24
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/17; H10F10/172; C; C23; C23C; C23C16/00; C23C16/44; C23C16/50; C23C16/511; C23C16/54; C23C16/545; H01; H01J; H01J37/00; H01J37/32; H01J37/32009; H01J37/32192; H01J37/32211; H01J37/32229; H01J37/32431; H01J37/32733; H01J37/32752; H01J37/32761; H01J37/3277; H10D; H10D8/00; H10D8/60; H10F71/00; H10F71/10; H10F71/103; H10F71/1035; H10F71/107; H10P; H10P14/00; H10P14/20; H10P14/24; H10P14/29; H10P14/2901; H10P14/2923; H10P14/32; H10P14/3202; H10P14/3204; H10P14/3211; H10P14/3242; H10P14/3244; H10P14/3251; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/548; Y02P; Y02P70/00; Y02P70/50

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 194 words
A microwave plasma CVD apparatus suitable for continuously forming a large area and lengthy functional deposited film on a substrate web, which comprises: (a) a film-forming chamber which is formed by the steps of moving said substrate web in the longitudinal direction by means of a pair of rollers for supporting said substrate web while simultaneously dispensing said substrate web from a pay-out means and retrieving said substrate web by a take-up means, wherein said substrate web functions as a wall of said film-forming chamber, and said pair of rollers are arranged in parallel to each other while leaving a spacing between them in the longitudinal direction; (b) a microwave applicator means connected to a side face of said film-forming chamber for radiating microwave energy into said film-forming chamber in a direction intersecting the direction in which said substrate web is transported and generating a microwave plasma in said film-forming chamber; (c) means for evacuating the inside of said film-forming chamber; (d) means for introducing a film-forming raw material gas into said film-forming chamber and for applying a bias voltage into said film-forming chamber; and (e) means for heating or cooling said substrate web.
Claim 2
Dependent Claim 194 words
A microwave plasma CVD apparatus suitable for continuously forming a large area and lengthy functional deposited film on a substrate web, which comprises: (a) a film-forming chamber which is formed by the steps of moving said substrate web in the longitudinal direction by means of a pair of rollers for supporting said substrate web while simultaneously dispensing said substrate web from a pay-out means and retrieving said substrate web by a take-up means, wherein said substrate web functions as a wall of said film-forming chamber, and said pair of rollers are arranged in parallel to each other while leaving a spacing between them in the longitudinal direction; (b) a microwave applicator means connected to a side face of said film-forming chamber for radiating microwave energy into said film-forming chamber in a direction intersecting the direction in which said substrate web is transported and generating a microwave plasma in said film-forming chamber; (c) means for evacuating the inside of said film-forming chamber; (d) means for introducing a film-forming raw material gas into said film-forming chamber and for applying a bias voltage into said film-forming chamber; and (e) means for heating or cooling said substrate web.
Claim 3
Dependent Claim 28 words
The apparatus according to claim 1, wherein the means (d) is arranged at a position more than 10 mm apart from the inner face of the film-forming chamber.
Claim 4
Dependent Claim 17 words
The apparatus according to claim 1, wherein the means (d) has a plurality of gas ejecting holes.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-02-02 2001-08-04 2002-02-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-02-02 2005-08-04 2006-02-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-02-02 2009-08-04 2010-02-03 $7700.00 Window Closed / Lapsed

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