← Back to Patent Explorer
US5173330A Expired / Lapsed US ⏱️ 0.0 years remaining

Patterning composition and method for patterning on a substrate

Assignee: MATUSHITA ELECTRIC INDUSTRIAL Co Ltd 1006 OAZA-KADOMA KADOMA-SHI OSAKA-FU 571 JAPAN
•
Filing: 1990-04-03
•
Granted: 1992-12-22
•
Expires: 2010-04-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A patterning composition is prepared by mixing a metallic salt of organic acid which separates a metal when reduced (e.g. copper (II) heptanoate), a reducing agent (e.g., 4-methoxy-1-naphthol), which shows reducing activity by being heated and loses the reducing activity by being irradiated by UV light, visible light or infrared light, gelatin and water, the composition is applied on a substrate, and the coating is irradiated by UV or visible infrared light through a mask and then heated, thereby to deposit metal in a pattern.

Inventors

  • 👤 Takahiro Asano
  • 👤 Shinichi Mizuguchi
  • 👤 Toshio Ishikawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 03:43
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/01; H10W70/05; H05; H05K; H05K3/00; H05K3/10; H05K3/105; H05K2203/00; H05K2203/05; H05K2203/0548; H05K2203/056; H05K2203/11; H05K2203/1157; H05K2203/12; H05K2203/121

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 165 words
Method for patterning on a substrate comprising the steps of: applying on a holder a second coating of composition containing 4-methoxy-1-naphthol as a reducing agent which shows reducing activity by being heated and loss of said reducing activity by being irradiated by at least one emission selected from the group consisting of UV light, visible light and infrared light, applying on a substrate a first coating of composition containing copper (II) heptanoate as a metallic salt of organic acid, wherein said copper (II) heptanoate deposits a metal when reduced, irradiating through a metal mask with at least one of UV light, visible light and infrared light said second coating thereby to form patterned activated reducing agent, thereafter contacting a surface of said irradiated second coating with a surface of said first coating, and applying heat to contacting surfaces of said first coating and said second coating, to cause reduction of said copper (II) heptanoate, thereby to produce a patterned deposited metal layer on said substrate.
Claim 2
Dependent Claim 165 words
Method for patterning on a substrate comprising the steps of: applying on a holder a second coating of composition containing 4-methoxy-1-naphthol as a reducing agent which shows reducing activity by being heated and loss of said reducing activity by being irradiated by at least one emission selected from the group consisting of UV light, visible light and infrared light, applying on a substrate a first coating of composition containing copper (II) heptanoate as a metallic salt of organic acid, wherein said copper (II) heptanoate deposits a metal when reduced, irradiating through a metal mask with at least one of UV light, visible light and infrared light said second coating thereby to form patterned activated reducing agent, thereafter contacting a surface of said irradiated second coating with a surface of said first coating, and applying heat to contacting surfaces of said first coating and said second coating, to cause reduction of said copper (II) heptanoate, thereby to produce a patterned deposited metal layer on said substrate.
Claim 3
Dependent Claim 179 words
Method for patterning on a substrate comprising the steps of: applying a second coating of composition containing 4-methoxy-1-naphthol as a reducing agent which shows reducing activity by being heated and loss of said reducing activity by being irradiated by at least one emission selected from the group consisting of UV light, visible light and infrared light, on a first face of a planar holder which is transparent for said light, applying a first coating of composition containing copper (II) heptanoate as a metallic salt of organic acid, wherein said copper (II) heptanoate deposits a metal on a substrate when reduced, contacting a surface of said first coating with a surface of said second coating, irradiating through a metal mask with at least one of UV light, visible light and infrared light said second coating from a second face, opposite said first face, of said planar holder, and applying heat to contacting surfaces of said first coating and said second coating, to cause reduction of said copper (II) heptanoate, thereby to produce a patterned deposited metal layer on said substrate.
Claim 4
Dependent Claim 179 words
Method for patterning on a substrate comprising the steps of: applying a second coating of composition containing 4-methoxy-1-naphthol as a reducing agent which shows reducing activity by being heated and loss of said reducing activity by being irradiated by at least one emission selected from the group consisting of UV light, visible light and infrared light, on a first face of a planar holder which is transparent for said light, applying a first coating of composition containing copper (II) heptanoate as a metallic salt of organic acid, wherein said copper (II) heptanoate deposits a metal on a substrate when reduced, contacting a surface of said first coating with a surface of said second coating, irradiating through a metal mask with at least one of UV light, visible light and infrared light said second coating from a second face, opposite said first face, of said planar holder, and applying heat to contacting surfaces of said first coating and said second coating, to cause reduction of said copper (II) heptanoate, thereby to produce a patterned deposited metal layer on said substrate.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-12-22 1996-06-22 1996-12-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-12-22 2000-06-22 2000-12-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-12-22 2004-06-22 2004-12-22 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag