ADHESIVE FILM AND FLEXIBLE PRINTED CIRCUIT BOARD
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Jun 3, 2021
app pub date -
Dec 2, 2020
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Dec 2, 2020
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Abstract
An adhesive film includes: a resin film layer; and an adhesive layer laminated to the resin film layer, in which the adhesive layer includes an adhesive agent, the adhesive layer is in a B stage state, an oxygen transmission rate at 200° C. of the resin film layer, measured in accordance with JIS K7126-1, is 1.50×10−10 cc·cm/cm2·sec·cmHg or less, and a 3% thermal weight reduction temperature of the adhesive agent is 320° C. or higher.
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