PACKAGE

PROBLEM TO BE SOLVED: To provide a package in which a crystal oscillator can be surface-mounted, an electronic component can also be mounted within a cavity, a package body can be made thin (reduced in height) and overall downsizing including the thinning can be surely performed.SOLUTION: A package...

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Bibliographische Detailangaben
1. Verfasser: AKITA KAZUE
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a package in which a crystal oscillator can be surface-mounted, an electronic component can also be mounted within a cavity, a package body can be made thin (reduced in height) and overall downsizing including the thinning can be surely performed.SOLUTION: A package 1a comprises: a package body 2 which is formed of ceramics (insulation materials) c1 and c2 and has a front face 3 and a rear face 4 having a rectangular shape in a plan view; a metal layer 12 which is formed along a peripheral part of the front face 3 of the package body 2 and has a frame shape in a plan view; a metal frame 15 which is joined on the metal layer 12 via a brazing material 13 and has a frame shape in a plan view; a pair of electrode pads 14 formed on the front face 3 of the package body 2 surrounded by the metal layer 12 for packaging the crystal vibrator; and an opening of a cavity 7 which is opened at a position excluding the pair of electrode pads 14 on the front face of the package body 2 surrounded by the metal layer 12. The metal layer 12, the pair of electrode pads 14 and the opening of the cavity 7 are positioned on the front face 3 that is the same plane. 【課題】水晶振動子を表面実装でき且つ電子部品をもキャビティ内に実装可能であって、パッケージ本体の薄肉化(低背化)、および該薄肉化を含む全体の小型化が確実に行えるパッケージを提供する。【解決手段】セラミック(絶縁材)c1,c2からなり、平面視が矩形状の表面3および裏面4を有するパッケージ本体2と、該パッケージ本体2の表面3の周辺部に沿って形成された平面視が枠状の金属層12と、該金属層12の上にロウ材13を介して接合された平面視が枠状の金属枠15と、上記金属層12に囲まれたパッケージ本体2の表面3に形成された水晶振動子を搭載するための一対の電極パッド14と、上記金属層12に囲まれたパッケージ本体2の表面3のうち、上記一対の電極パッド14を除いた位置に開口するキャビティ7の開口部と、を備え、上記金属層12、一対の電極パッド14、およびキャビティ7の開口部が同一平面である上記表面3に位置している、パッケージ1a。【選択図】 図2