Laser transfer deposition

Details Laser transfer deposition Laser transfer deposition

1996-03-12

1998-03-10

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156233, 156234, 1562728, 156285, 430201, 427597, B05D 306

Patent

active

057257060

ABSTRACT:
The present invention is directed to a method for producing a smooth and continuous pressure bonded layer of a material on a base substrate through the driving force of a pulsed laser. The method comprises the steps of selecting a laser absorptive material. Then applying thereto a thin layer of the material for pressure bonding to the base substrate. Next, placing the base substrate and the thin layer of material on the laser absorptive material in a vacuum, then placing the base substrate in close proximity to the thin layer of material. Finally, directing pulsed laser energy toward the laser absorptive material and the layer to be pressure bonded, whereby the laser energy is absorbed by the laser absorptive material causing heating and vaporization thereof to a controlled depth of the laser absorptive material, leaving remaining portions of the laser absorptive material unvaporized after the vaporization to act as a support for the material to be bonded. After bonding, the thin material adheres to the base substrate when the remaining continuous absorptive material is peeled away, the vaporization having provided the necessary pressure for pressure bonding on to the base material.

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patent: 4987006 (1991-01-01), Williams et al.
patent: 5156938 (1992-10-01), Foley et al.
patent: 5171650 (1992-12-01), Ellis et al.
patent: 5173441 (1992-12-01), Yu et al.
patent: 5256506 (1993-10-01), Ellis et al.

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