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CA1105093A Expired / Lapsed CA ⏱️ 0.0 years remaining

Laser deposition of metal upon transparent materials

Assignee: International Business Machines Corp
•
Filing: 1978-08-25
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Granted: 1981-07-14
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Expires: 1998-08-25
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Abstract

Abstract LASER DEPOSITION OF METAL UPON TRANSPARENT MATERIALS Abstract A method and apparatus are disclosed for selectively depositing metal upon materials transparent to laser illum-ination. A laser is oriented to direct a beam of light through a transparent substrate for impact upon a metal surface or reservoir located adjacent the opposite side of the substrate. The laser heats the metal causing vaporization of metal which is then redeposited upon the adjacent surface of the transparent substrate. The laser can be selectively deflected for providing a capability of selected deposition of lines of metal or writing on the substrate. The system and method can be utilized for deposition of other materials, as well.

Inventors

  • 👤 Roland F. Drew
  • 👤 Frank J. Schmidt, Jr.
  • 👤 Thomas J. Vanduynhoven

Bibliographic Details

Application Number —
Jurisdiction CA
Data Source google_patents
Last Synchronized 2026-11-07 22:53
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/04; H05K3/046; C; C03; C03C; C03C17/00; C03C17/06; C03C17/09; C23; C23C; C23C14/00; C23C14/04; C23C14/048; C23C14/22; C23C14/24; C23C14/28; C03C2218/00; C03C2218/10; C03C2218/15

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 61 words
A method of selectively depositing material upon a transparent substrate comprising the steps of placing the transparent substrate adjacent to a source of material to be deposited, directing a beam of laser radiation through the trans-parent substrate to a surface of said source of material, and selectively moving the laser beam whereby the material is evaporated and redeposited upon the substrate.
Claim 2
Independent Claim 61 words
A method of selectively depositing material upon a transparent substrate comprising the steps of placing the transparent substrate adjacent to a source of material to be deposited, directing a beam of laser radiation through the trans-parent substrate to a surface of said source of material, and selectively moving the laser beam whereby the material is evaporated and redeposited upon the substrate.
Claim 3
Dependent Claim 12 words
The method of claim 1 wherein said material is a con-ductive metal.
Claim 4
Dependent Claim 16 words
The method of claim 2 wherein said transparent sub-strate is glass and said metal is copper.
Claim 5
Dependent Claim 22 words
The method of claim 1 wherein said laser is scanned across the substrate at a speed of about 2 millimeters per second.
Claim 6
Dependent Claim 26 words
The method of claim 4 wherein said laser is powered at a level of about 2 watts, with a pulse repetition rate of about 3 kilohertz.

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