CRYSTAL DEVICE

• Main Author: YASUDA YUJI
• Format: Patent
• Language: English; Japanese
• Published: 28.06.2018
• Subjects: BASIC ELECTRIC ELEMENTS; BASIC ELECTRONIC CIRCUITRY; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide a crystal device which reduces conduction failure between electrode pads and external terminals and can maintain hermetic sealability.SOLUTION: The crystal device includes: a substrate 110 having a first substrate 110a having a rectangle shape in a plan view and a second substrate 110b provided along an outer peripheral edge of a lower surface of the first substrate 110a; electrode pads 111 provided on an upper surface of the first substrate 110a; external terminals 112 provided on a lower surface of the second substrate 110b; wiring patterns 113 electrically connected with the electrode pads 111 and the external terminals 112 and provided on the upper surface and a side surface of the first substrate 110a and a side surface and a lower surface of the second substrate 110b; a crystal element 120 mounted on the electrode pads 111; and a lid body 130 joined to the first substrate 110a by a joint member 150.SELECTED DRAWING: Figure 2 【課題】 本発明は、電極パッド及び外部端子の導通不良を削減する共に、気密封止性を維持することが可能な水晶デバイスを提供する。【解決手段】 水晶デバイスは、平面視して矩形状の第一基板１１０ａと、第一基板１１０ａの下面の外周縁に沿って設けられた第二基板１１０ｂと、を有する基板１１０と、第一基板１１０ａの上面に設けられた電極パッド１１１と、第二基板１１０ｂの下面に設けられた外部端子１１２と、電極パッド１１１及び外部端子１１２と電気的に接続され、第一基板１１０ａの上面及び側面、並びに第二基板１１０ｂの側面及び下面に設けられた配線パターン１１３と、電極パッド１１１に実装された水晶素子１２０と、接合部材１５０によって、第一基板１１０ａと接合された蓋体１３０と、を備えている。【選択図】図２