PROCESS FOR FORMING METALLIC IMAGES

• Main Authors: NAKATANI, MITSUO, ISOGAI, TOKIO, SAKURAI, HIDEKI, OKA, HITOSHI, YOKONO, HITOSHI
• Format: Patent
• Language: English
• Published: 03.04.1985
• Edition: 4
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; AUXILIARY PROCESSES IN PHOTOGRAPHY; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CINEMATOGRAPHY; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MATERIALS THEREFOR; 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; PRINTED CIRCUITS

Metallic images of uniform quality can be formed on substrates having through-holes by a process using a positive type resist characterized by using as a coating solution for the substrates a solution of a photosensitive material of (a) at least one organic compound having at least one linkage of -M-M-(M)n- (M = Si, Ge or Sn; n = 0,1 or more) in the molecule or (b) a mixture of at least one organic compound (a) mentioned above and at least one photosensitizer, dissolved in a solvent such as a halogenated hydrocarbon, an aromatic hydrocarbon, a heterocyclic compound, or a mixture thereof, followed by irradiation with an actinic light through a photomask and electroless plating.