Deposition of soluble materials

A method and apparatus for depositing a soluble material, such as an organic polymer, onto a substrate uses an inkjet print head. The substrate is viewed from the underside by a CCD microscope during the deposition of an organic polymer droplet onto a well provided in a bank structure. As the organi...

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Bibliographische Detailangaben
1. Verfasser:	KAWASE TAKEO,C. NEWSOME
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BASIC ELECTRIC ELEMENTS CORRECTION OF TYPOGRAPHICAL ERRORS ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PRINTING PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SELECTIVE PRINTING MECHANISMS SEMICONDUCTOR DEVICES SPRAYING OR ATOMISING IN GENERAL STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method and apparatus for depositing a soluble material, such as an organic polymer, onto a substrate uses an inkjet print head. The substrate is viewed from the underside by a CCD microscope during the deposition of an organic polymer droplet onto a well provided in a bank structure. As the organic polymer droplets are viewed when in wet condition they are more clearly visible and any offset or deviation detected between the deposited droplet and the well can be used to reposition a platen supporting the substrate. The substrate is viewed with light having a wavelength to which the substrate is transparent and, preferably, which does not include a wavelength component within the absorption region of the polymer.