Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device
Patent
1996-09-11
1998-05-05
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making electrical device
430313, 430330, G03C 500
Patent
active
057472220
ABSTRACT:
A multi-layered circuit substrate and a manufacturing method thereof comprising the steps of coating the upper surface of a substrate with a photosensitive insulating layer; exposing and developing the photosensitive insulating layer to form a photosensitive insulating layer of predetermined pattern and pattern spaces; forming a conductive layer by printing a conductive ink in the pattern spaces; and forming a plurality of layers by performing the previous steps, each layer comprising a photosensitive insulating layer of predetermined pattern and pattern spaces and a conductive layer formed in the pattern spaces. The method further comprises the steps of coating an uppermost layer of the plurality of layers with an adhesive insulating layer, forming a metallic thin-film on the adhesive insulating layer by thermal pressing; etching the metallic thin-film to form a predetermined pattern of a metallic thin film; and forming a through hole into which a conductive material is implanted, the through hole penetrating the substrate, conductive layer, photosensitive insulating layer and metallic thin-film so to electrically connect the conductive layer to the patterned metallic thin-film.
REFERENCES:
patent: 4221925 (1980-09-01), Finley et al.
patent: 5534666 (1996-07-01), Ishida
patent: 5599595 (1997-02-01), McGinley et al.
Ashton Rosemary
Baxter Janet C.
Samsung Aerospace Industries Ltd.
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