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US 6,849,308 B1Granted
Method of forming a masking pattern on a surface
OwnerStuart Speakman, Eric Bresler +1inventors
InventorsStuart Speakman, Eric Bresler, Ian Andrew Gardner
Life of this patent
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Abstract
A method of forming a masking pattern on a surface using the technique of droplet ejection to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on said surface to form such a pattern comprising multiple discrete or coalesced extended portions.
Claims77
A method of forming a masking pattern on a surface, said method comprising the steps of:
- using the technique of drop-on-demand printing to deposit from droplet deposition apparatus a plurality of droplets of deposition material on to a surface to, said droplets passing through an operating zone located between the deposition apparatus and the surface, and said droplets being deposited so as to enable coalescence of one such droplet with at least one other such droplet on said surface, and thus to form said masking pattern;
- generating electromagnetic radiation;
- and
- exposing said deposition material to said electromagnetic radiation in the operating zone,
- wherein said electromagnetic radiation is generated in such a way as to change a fluid property of said deposition material so as to control said coalescence and thus to control the solidity of the masking pattern.
2 more elements
A method of forming a spacer pattern on a surface, said method comprising the steps of:
- using the technique of drop-on-demand printing to deposit from droplet deposition apparatus a plurality of droplets of deposition material on to a surface, said droplets passing though an operating zone located between the deposition apparatus and the surface, and said droplets being deposited so as to enable coalescence of one such droplet with at least one other such droplet on said surface, and thus to form said spacer pattern;
- generating electromagnetic radiation;
- and
- locally exposing said deposition material to said electromagnetic radiation so in the operating zone,
- wherein said electromagnetic radiation is generated in such a way as to change a fluid progeny of said deposition material so as to control said coalescence and thus to control the solidity of the spacer pattern.
2 more elements
A method of forming a circuit pattern on a circuit board, said method comprising the steps of:
- using the technique of drop-on-demand printing to deposit from droplet deposition apparatus a plurality of droplets of deposition material on to said circuit board to at least partially fill via holes formed in the circuit board, said droplets passing through an operating zone located between the deposition apparatus and the surface, and said droplets being deposited so as to enable coalescence of one such droplet with at least one other such droplet, and thus to fill said via holes;
- generating electromagnetic radiation;
- and
- exposing said deposition material to said electromagnetic radiation in the operating zone,
- wherein said electromagnetic radiation is generated in such a way as to change a fluid property of said deposition material so as to control said coalescence and thus so controlling the filling of the via holes.
2 more elements
A method of forming a relief pattern on a surface, said method comprising the steps of
- selectively irradiating a charged roller to selectively remove the charge on portions of the roller;
- using the technique of drop-on-demand printing to deposit from droplet deposition apparatus a plurality of droplets of deposition material on to the charged portions of the roller, said droplets passing through an operating zone located between the deposition apparatus and the roller, and said droplets being deposited so as to enable coalescence of one such droplet with at least one other such droplet on said charged portions of said roller;
- generating electromagnetic radiation;
- exposing said deposition material to said electromagnetic radiation in the operating zone;
- and
- transferring the deposited material from the roller on to a surface to form a relief pattern on said surface,
- wherein said electromagnetic radiation is generated in such a way as to change a fluid property of said deposition material so as to control said coalescence and thus to control the structure of the pattern formed on the roller.
4 more elements
A method of forming a circuit pattern on a circuit board, said method comprising the steps of:
- using drop-on-demand printing to deposit from a droplet deposition apparatus at least one droplet of deposition material on to said circuit board to at least partially fill a via hole formed in the circuit board, said at least one droplet passing through an operating zone located between the deposition apparatus and the surface;
- generating electromagnetic radiation;
- and
- exposing said deposition material to said electromagnetic radiation in the operating zone,
- wherein said electromagnetic radiation is generated in such a way as to change a fluid property of said deposition material so as to control surface tension of said at least one droplet on said circuit board and thus to control the filling of the via hole.
2 more elements
Dependencies are inferred from the claim text.