SHIELD FILM FOR PRINTED WIRING BOARD, AND PRINTED WIRING BOARD

• Main Authors: KAWAKAMI YOSHINORI, MORIMOTO SYOHEI, KAMINO KENJI, TOTOUGE MASAYUKI
• Format: Patent
• Language: English; Korean
• Published: 17.05.2010
• 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

Provided are a shield film for a printed wiring board, and a printed wiring board. In the shield film, a metal layer is not easily broken due to repeated bending and sliding, ranging from a large bending radius to a small bending radius (1.0mm). A shield film (10) for a printed wiring board is provided with a metal layer (2) formed on one surface of an insulating layer (1). The arithmetic average roughness (JIS B 0601 (year of 1994)) of the one surface of the insulating layer (1) is 0.5-5.0 μm, and a metal layer (2) is formed in a corrugated structure along the one surface of the insulating layer (1). The printed wiring board is provided by attaching the shield film (10) to a base film.