Method of making a printed circuit board
AssigneeEastman Kodak Company
InventorsThomas N. Blanton, Syamal K. Ghosh, Donn B. Carlton, Dilip K. Chatterjee
Life of this patent
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Abstract
A method of making a charge containing element including the steps of depositing and patterning a dielectric material on a surface wherein the dielectric material includes a metallo-organic component and a liquid component; and decomposing by laser light the deposited dielectric material to substantially evaporate the liquid component to cause the metallic portion of the metallo-organic component to react with oxygen causing the dielectric material to have charge-holding properties.
Claims17
A method of making a charge containing element comprising the steps of:
- (a) depositing and patterning a dielectric material on a surface wherein the dielectric material includes a metallo-organic component and a liquid component;
- and
- (b) thermally decomposing in an atmosphere having oxygen by heat applied from IR laser light to the deposited dielectric material to substantially evaporate the liquid component to cause the metallic element in the metallo-organic component to react with oxygen to provide a metal oxide causing the dielectric material to have charge-holding properties.
A method of making capacitors on a printed circuit board comprising the steps of:
- (a) providing a substrate and one or more conductive portions on such substrate;
- (b) depositing and patterning a dielectric material on the printed circuit board so that conductive portion(s) are in contact with such dielectric material and wherein the dielectric material includes a metallo-organic component and a liquid component;
- and
- (c) thermally decomposing in an atmosphere having oxygen by heat applied from IR laser light to the deposited dielectric material to substantially evaporate the liquid component to cause the metallic element in the metallo-organic component to react with oxygen to provide a metal oxide causing the dielectric material to provide capacitors having charge-holding properties.
A method of making capacitors and conductors connected to such capacitors on a printed circuit board comprising the steps of:
- (a) providing a substrate;
- (b) depositing and patterning a dielectric material on the printed circuit board so that portions of the patterned dielectric material correspond to conductors and other portions correspond to capacitors which are in electrical contact with the conductors and wherein the dielectric material includes a metallo-organic component and a liquid component;
- and
- (c) thermally decomposing in an atmosphere having oxygen by IR laser light of first or second wavelengths the deposited dielectric material to substantially evaporate the liquid component to cause the metallic element in the metallo-organic component to react with oxygen to provide a metal oxide causing the dielectric material to provide conductors and capacitors in response to the first and second wavelengths of laser light respectively having charge-holding properties.
Dependencies are inferred from the claim text.