LIGHT TRANSMISSIVE ELECTROMAGNETIC WAVE SHIELD MATERIAL AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a transmissive electromagnetic wave shield material and its manufacturing method wherein visibility is excellent and the effect of electromagnetic wave shielding is high. SOLUTION: With a polyester film of 100μm thickness as a transparent substrate 1, a copper foil o...

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Bibliographic Details
Main Authors ISHIBASHI TATSUO, SUYAMA HIROSHI, OKUMURA SHUZO
Format Patent
LanguageEnglish
Published 24.02.1998
Edition6
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PERFORMING OPERATIONS
PRINTED CIRCUITS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a transmissive electromagnetic wave shield material and its manufacturing method wherein visibility is excellent and the effect of electromagnetic wave shielding is high. SOLUTION: With a polyester film of 100μm thickness as a transparent substrate 1, a copper foil of 35μm thickness is bonded on the transparent substrate 1 as a metal layer 2, and with photolithography, the metal layer 2 is patterned into a lattice of line thickness 10μm and scale division 100×100μm. Connected to a conductive line, it is submerged in an aqueous solution containing 1% of carbon black, 20% of aminate-epoxidized-polibutadiene (number average molecular weight about 1000), and 1% of triethylamine, and then applied with 10V for one minute to form a black electronic deposition layer 3 of 1μm thickness. The substrate is dried for 30 minutes at 60 deg.C, and then cooled down, and a film is laminated on it, so that a transmissive electromagnetic wave shield material is provided.
Bibliography:Application Number: JP19970094792