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US6090530A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for depositing deep UV photoresist films

Assignee: Applied Materials Inc
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Filing: 1998-10-01
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Granted: 2000-07-18
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Expires: 2018-10-01
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Abstract

Abstract An improved method and apparatus for forming a plasma-polymerized methylsilane (PPMS) photo-sensitive resist material includes the steps of pressurizing the chamber to between about 1 to about 2 Torr, heating the substrate to between about 50 DEG C. and about 200 DEG C., and plasma-polymerizing the precursor methylsilane gas to deposit a stable film having high-photosensitivity at high deposition rates.

Inventors

  • 👤 Timothy Weidman
  • 👤 Dian Sugiarto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 14:36
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/62; C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/44; C23C16/50; C23C16/505; C23C16/509; C23C16/5096; G; G03; G03F; G03F7/00; G03F7/16; G03F7/167; G03F7/004; G03F7/075; G03F7/0757

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 94 words
A process for depositing a photo-sensitive resist layer on a substrate disposed in a substrate processing chamber, said process comprising the steps of: (a) establishing a selected process pressure in said chamber; (b) providing thermal energy to heat said substrate to temperature of between about 50° C. and about 200° C.; after steps (a) and (b), flowing a precursor gas of methylsilane into said chamber; and providing electromagnetic energy to said electrode to strike a plasma to plasma-polymerize said precursor gas of methylsilane and to deposit a plasma-polymerized methylsilane (PPMS) layer on said substrate.
Claim 2
Dependent Claim 94 words
A process for depositing a photo-sensitive resist layer on a substrate disposed in a substrate processing chamber, said process comprising the steps of: (a) establishing a selected process pressure in said chamber; (b) providing thermal energy to heat said substrate to temperature of between about 50° C. and about 200° C.; after steps (a) and (b), flowing a precursor gas of methylsilane into said chamber; and providing electromagnetic energy to said electrode to strike a plasma to plasma-polymerize said precursor gas of methylsilane and to deposit a plasma-polymerized methylsilane (PPMS) layer on said substrate.
Claim 3
Dependent Claim 27 words
The process of claim 1 further comprising establishing a process pressure of between about 1 Torr and about 2 Torr driving the deposition of said PPMS layer.
Claim 4
Dependent Claim 76 words
A process for depositing a photo-sensitive resist layer on a substrate disposed in a substrate processing chamber, said process comprising: (a) establishing a selected process pressure in said chamber of between about 1 Torr and about 2 Torr; flowing a precursor gas of methylsilane into said chamber; and providing electromagnetic energy to said electrode to strike a plasma to plasma-polymerize said precursor gas of methylsilane and to deposit a plasma-polymerized methylsilane (PPMS) layer on said substrate.
Claim 5
Dependent Claim 76 words
A process for depositing a photo-sensitive resist layer on a substrate disposed in a substrate processing chamber, said process comprising: (a) establishing a selected process pressure in said chamber of between about 1 Torr and about 2 Torr; flowing a precursor gas of methylsilane into said chamber; and providing electromagnetic energy to said electrode to strike a plasma to plasma-polymerize said precursor gas of methylsilane and to deposit a plasma-polymerized methylsilane (PPMS) layer on said substrate.
Claim 6
Dependent Claim 15 words
The process of claim 3 wherein said process pressure is between 1 and 2 Torr.
Claim 7
Dependent Claim 28 words
The process of claim 3 further comprising heating said substrate to a temperature of between about 50° C. and about 200° C. during deposition of said PPMS layer.
Claim 8
Dependent Claim 151 words
A process for depositing a photo-sensitive resist layer on a substrate disposed in a substrate processing chamber, said process comprising: (a) establishing a process pressure in the chamber of between about 1 Torr and about 2 Torr; (b) providing thermal energy to heat said substrate to a temperature of between about 50° C. and about 200° C.; (c) flowing a precursor gas of methylsilane into a reaction zone of the chamber; (d) providing electromagnetic energy to an electrode of the chamber to strike a plasma from said methylsilane precursor gas; and (e) after steps (a) through (d), maintaining the chamber at a process pressure of between about 1 Torr and about 2 Torr, maintaining said substrate at a temperature of between about 50° C. and about 200° C., maintaining said flow of methylsilane and maintaining said plasma to deposit a plasma-polymerized methylsilane (PPMS) layer having a selected thickness over said substrate.
Claim 9
Dependent Claim 151 words
A process for depositing a photo-sensitive resist layer on a substrate disposed in a substrate processing chamber, said process comprising: (a) establishing a process pressure in the chamber of between about 1 Torr and about 2 Torr; (b) providing thermal energy to heat said substrate to a temperature of between about 50° C. and about 200° C.; (c) flowing a precursor gas of methylsilane into a reaction zone of the chamber; (d) providing electromagnetic energy to an electrode of the chamber to strike a plasma from said methylsilane precursor gas; and (e) after steps (a) through (d), maintaining the chamber at a process pressure of between about 1 Torr and about 2 Torr, maintaining said substrate at a temperature of between about 50° C. and about 200° C., maintaining said flow of methylsilane and maintaining said plasma to deposit a plasma-polymerized methylsilane (PPMS) layer having a selected thickness over said substrate.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-07-18 2004-01-17 2004-07-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-07-18 2008-01-17 2008-07-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-07-18 2012-01-17 2012-07-18 $7700.00 Window Closed / Lapsed

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