PROCESS FOR THE PREPARATION OF THERMOSTABLE STRUCTURED LAYERS, AND THEIR USE

A cost-efficient method for producing dimensionally precise and high-grade heat-resistent structured layers by applying a single coating of a radiation-sensitive soluble polyether-based photopolymer in the form of a layer or foil on a substrate; irradiating the layer or foil through a negative with...

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Bibliographische Detailangaben
Hauptverfasser:	PLUNDRICH, WINFRIED, AHNE, HELLMUT
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR AUXILIARY PROCESSES IN PHOTOGRAPHY BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON CONDUCTORS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRICITY ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY HUMAN NECESSITIES HYGIENE INSULATORS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS THEREFOR MEDICAL OR VETERINARY SCIENCE METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS ORIGINALS THEREFOR PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A cost-efficient method for producing dimensionally precise and high-grade heat-resistent structured layers by applying a single coating of a radiation-sensitive soluble polyether-based photopolymer in the form of a layer or foil on a substrate; irradiating the layer or foil through a negative with actinic light or by guiding a light, electron, laser, or ion beam; removing the nonirradiated layer or foil portions; and subsequent optional annealing, wherein the photopolymer comprises an addition product of an olefin-unsaturated monoisocyanate and a polether having at least one hydroxyl group. The layers provided according to the invention can withstand the thermal and mechanical stresses of dip soldering process, and protect circuit surfaces effectively and durably against moisture and corrosion; they are therefore suitable in particular as solder resist and insulating layers in microconductor technology.