CERAMIC WIRING BOARD

PROBLEM TO BE SOLVED: To provide a ceramic wiring board which allows for accurate mounting on the surface of a mother board with a relatively limited area, while keeping conduction even if subjected to thermal change, and in which the height of a plurality of leads bonded to the back side of the sub...

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1. Verfasser: WASHINO JUNICHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a ceramic wiring board which allows for accurate mounting on the surface of a mother board with a relatively limited area, while keeping conduction even if subjected to thermal change, and in which the height of a plurality of leads bonded to the back side of the substrate body can be aligned easily, and the height of the leads can be changed easily.SOLUTION: In ceramic wiring board 1 including a substrate body 2 consisting of ceramics C1-C3, and having a rectangular surface 3 and a back surface 4 in plan view, a plurality of external connection terminals 7 formed along each pair of sides in the back surface 4 of the substrate body 2, and electrically connected with via conductors 8c formed in the substrate body 2, and a lead 10 bonded to the underside of each external connection terminal 7, the lead 10 has C-shape in the side view. 【課題】マザーボードの表面に比較的狭い面積で正確に実装でき、且つ熱的変化を受けても導通が保てると共に、基板本体の裏面側に接合した複数のリードの高さが揃え易く、該リードの高さの変更も容易なセラミック配線基板を提供する。【解決手段】セラミックC1〜C3からなり、平面視が矩形状の表面3および裏面4を有する基板本体2と、該基板本体2の裏面4における対向する一対の辺ごとに沿って複数個ずつが形成され、上記基板本体2の内部に形成されたビア導体8cと導通されている外部接続端子7と、該外部接続端子7ごとの下側に接合されたリード10と、を備えたセラミック配線基板1であって、前記リード10は、側面視でC字形状を呈する、セラミック配線基板1。【選択図】 図1