Cylindrical coil and production process thereof

An electroless plating reaction catalyst is imparted to a substrate and then the catalyst is deactivated or removed at desired locations by irradiating with an energy beam to form groove portions in the substrate.

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Bibliographic Details
Main Authors SHIMIZU HIROSHI, OHMI HIROSHI
Format Patent
LanguageEnglish
Published 30.04.2002
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
CHEMICAL SURFACE TREATMENT
CHEMISTRY
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
DIFFUSION TREATMENT OF METALLIC MATERIAL
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INDUCTANCES
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
MAGNETS
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
METALLURGY
PRINTED CIRCUITS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
TRANSFORMERS
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Summary:An electroless plating reaction catalyst is imparted to a substrate and then the catalyst is deactivated or removed at desired locations by irradiating with an energy beam to form groove portions in the substrate.
Bibliography:Application Number: US19930022199