Monolithic sheet style quartz crystal frequency device and production thereof

A technology of frequency devices and quartz crystals, applied in monolithic chip quartz crystal frequency devices and its manufacturing field, can solve the problems of large product size, high manufacturing cost, poor air tightness, etc., achieve low cost and improve efficiency , cost reduction effect

Inactive Publication Date: 2006-05-31
上海晶赛电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when bonding with the base, it is easy to cause poor airtightness
[0006] 2. Since the lead-out of the internal electrodes on the base is realized by perforation printing with conductive paste, the through-holes on the base cannot be made too small, making the product size too large
[0007] 3. The caps are very small and need to be put on one by one
If it is done by hand, not only the deviation is large but also the efficiency is low; if the special automatic machine is used, it is expensive and the manufacturing cost is high

Method used

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  • Monolithic sheet style quartz crystal frequency device and production thereof
  • Monolithic sheet style quartz crystal frequency device and production thereof
  • Monolithic sheet style quartz crystal frequency device and production thereof

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Embodiment Construction

[0024] figure 1 , 2 Schematic diagrams of two different cross-sectional structures of the monolithic plate quartz crystal frequency device manufactured for the present invention. As can be seen from the figure, the quartz wafer 3 is hidden in a cavity (vibration cavity) composed of an upper cover pit 4 and a lower cover pit 5 . Firstly, according to the different size requirements of the pit 4 of the upper cover plate and the pit 5 of the lower cover plate, prefabricate two pieces of ceramics with an m×n array (wherein, m≥1, n≥1,) by a special method cover plate.

[0025] image 3 It is a schematic diagram of the lower cover plate with the wafer attached to the intermediate splint, Figure 4 It is a side view sectional view of the lower cover plate with the wafer attached to the intermediate splint, Figure 5 It is a schematic diagram of the lower cover plate with the wafer attached, Image 6 It is a side view sectional view of the lower cover plate with the wafer attach...

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Abstract

A frequency generator with monolithic quartz crystal chips is composed of upper and lower cover plates, crystal chips, pits on said cover plates, and internal and external electrodes. Its preparing process includes such steps as preparing two cover plates with m*n pit array, sticking the crystal chips onto lower cover plate by electrically conductive adhesive, sticking it with upper cover plate, cutting to become product units, and evaporating to form electrodes.

Description

technical field [0001] The invention relates to a crystal frequency device and a manufacturing method thereof, in particular to a monolithic chip quartz crystal frequency device and a manufacturing method thereof. Background technique [0002] At present, quartz crystal frequency devices are widely used in communication, television, digital products, industrial automation and other fields to generate time-base oscillation frequency or select frequency. [0003] Quartz crystal frequency devices are made of the principle that quartz crystals will generate mechanical vibrations under the action of an alternating electric field. Therefore, it is not affected by external electromagnetic interference. In use, there is no need for complex shielding to prevent electromagnetic interference like other frequency components. It has quite positive significance to the miniaturization and integration of electronic products. [0004] Because the quartz crystal oscillator works through me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H3/02H03H9/19
Inventor 侯诗益
Owner 上海晶赛电子有限公司
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