PRINTED WIRING BOARD

PROBLEM TO BE SOLVED: To provide a printed wiring board in which a short circuit between through-hole conductors is hard to be generated.SOLUTION: A glass cloth 21 is formed by being woven so that a warp thread 21h and a weft thread 21v formed by bundling glass fiber become orthogonal to each other....

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Bibliographic Details
Main Author ADACHI TAKEMA
Format Patent
LanguageEnglish
Japanese
Published 02.03.2017
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
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Summary:PROBLEM TO BE SOLVED: To provide a printed wiring board in which a short circuit between through-hole conductors is hard to be generated.SOLUTION: A glass cloth 21 is formed by being woven so that a warp thread 21h and a weft thread 21v formed by bundling glass fiber become orthogonal to each other. An open hole 28 forming a through-hole is arranged at an angle of θ1:30° to 45°against the lengthwise direction Yd and the lateral direction Xd of this glass fiber in a matrix shape. Even if through-holes adjacent to each other are arranged at a fine pitch, a distance along the glass fiber is long, so that short-circuit is hard to be generated.SELECTED DRAWING: Figure 4 【課題】 スルーホール導体間の短絡が生じ難いプリント配線板の提供。【解決手段】 ガラスクロス２１は、ガラス繊維を束ねてなる縦糸２１ｈと横糸２１ｖとが直交するように編み込まれ成る。スルーホールを形成する貫通孔２８はこのガラス繊維の縦方向Ｙｄ、横方向Ｘｄに対して、θ１：３０゜〜４５゜の角度にマトリクス状に配置される。隣接するスルーホールで、ガラス繊維に沿った距離が長くなるため、ファインピッチにスルーホールが配置されても、短絡が生じにくい。【選択図】 図４
Bibliography:Application Number: JP20150164358