Method of controlling edge definition of viscous materials
AssigneeNordson Corporation
InventorsHoratio Quinones, Tom Chang, Rick Zakrajsek, George Vastola, Brad Perkins, Pat Hogan
Life of this patent
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Abstract
A method of controlling edge definition of viscous material applied to an application area on a substrate comprises dispensing a row of droplets of the viscous material onto the application area with a dispensing apparatus. While moving relative to the substrate along a path proximate the row of droplets, the dispensing apparatus dispenses a fan spray pattern of the viscous material. At least some of the viscous material dispensed in the fan spray pattern impinges and mixes with the row of droplets to define an edge of the fan spray pattern.
Claims20
A method of applying viscous material with a dispensing apparatus to a first application area on a substrate, the method comprising:
- dispensing a first row of droplets of the viscous material onto the first application area;
- moving the dispensing apparatus relative to the substrate along a path proximate the first row of droplets;
- dispensing a fan spray pattern of the viscous material from the moving dispensing apparatus onto the first application area proximate the first row of droplets;
- and
- impinging the first row of droplets with a portion of the viscous material dispensed in the fan spray pattern so that the droplets mix with the viscous material in the fan spray pattern to define a first edge of a first layer of the viscous material dispensed onto the first application area.
A method of applying viscous material with a dispensing apparatus to an application area on a substrate, the method comprising:
- dispensing first and second rows of droplets of the viscous material onto the application area;
- moving the dispensing apparatus relative to the substrate along a path between the first and second rows of droplets;
- dispensing a fan spray pattern of the viscous material from the moving dispensing apparatus between the first and second rows of droplets;
- and
- impinging at least one of the first and second rows of droplets with at least some of the viscous material dispensed in the fan spray pattern so that the droplets of the at least one of the first and second rows mix with the viscous material to define an edge of the fan spray pattern.
A method of applying viscous material to an application area on a substrate, the method comprising:
- dispensing a row of droplets of the viscous material onto the application area with a first dispensing apparatus;
- moving a second dispensing apparatus relative to the substrate along a path proximate the row of droplets;
- dispensing a fan spray pattern of the viscous material from the moving second dispensing apparatus proximate the row of droplets;
- and
- impinging the row of droplets with at least some of the viscous material dispensed in the fan spray pattern so that the droplets mix with the viscous material dispensed by the second dispensing apparatus to define an edge of the fan spray pattern.
Dependencies are inferred from the claim text.