Sunken type metal base electric resistance welding minitype quartz-crystal resonator

Abstract

The invention relates to a sunken type metal base electric resistance welding minitype quartz-crystal resonator. The quartz-crystal resonator comprises a metal base, a cover plate, a silver electrode quartz plate, a conductive adhesive, glass insulators and a lead terminal. The metal base is of a structure with a hollow cavity space, the upper edge of the metal base extends outwards so that the sunken type hollow cavity space is formed in the overall metal base, the upper edge is welded with the cover plate in a sealing mode, a sunken surface is formed by the bottom portion of the sunken type metal base and the glass insulators, and the silver electrode quartz plate is arranged inside the sunken type hollow cavity. According to the sunken type metal base electric resistance welding minitype quartz-crystal resonator, a cavity body is formed by sinking of the metal base, a welding face packaged between the upper portion of the sunken type metal base and the cover plate in an electric resistance welding mode is not located in the same plane as the two glass insulators, effects, caused by vibration and pressure deformation of the quartz-crystal resonator, on the glass insulators in an electric resistance welding air-tight packaging process are effectively reduced, and good air tightness is ensured.

Description

technical field [0001] The invention relates to a quartz crystal resonator, in particular to a sunken metal base resistance welding miniature quartz crystal resonator. Background technique [0002] Quartz crystal resonators are essential frequency selection and control core components in modern electronics and communication technology. It is widely used in military and civilian products, such as communications, navigation, quartz clocks, color TVs, computers and terminal equipment, various boards, etc. [0003] With the development of microelectronics technology and the popularization of integrated circuits, the requirements of the positive electrode for various components are not only limited to the electrical performance, but also the volume and height requirements of the components are becoming more and more stringent, requiring components to be miniaturized , SMD type. The quartz crystal resonator is a component that is not suitable for an integrated structure, but it ...

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Problems solved by technology

The resistance welding packaging method has been very mature in China. The resistance welding packaging method has been widely used in the processing of miniaturized quartz crystal resonators. During the airtight packaging process, the vibration and pressure deformation of the quartz crystal resonator can easily cause the glass insulator to break and cause poor airtightness

In addition, when the quartz crystal resonator packaged by resistance welding is chip-shaped, the two leads of the quartz crystal resonator must pass through the opening of the insulating gasket, so that the insulating gasket is placed on the bottom of the bracket, and the leads are respectively bent in different directions and embedded in the groove of the gasket. Among them, it is made into SMD mounting type, which has complicated process, high cost and is not conducive to environmental protection

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