Miniaturized high-reliability patch type safety ceramic capacitor and processing method thereof

A processing method and reliable technology, applied in capacitors, capacitor manufacturing, fixed capacitor dielectrics, etc., can solve the problems of porcelain body damage, incomplete electrode symmetry, large volume, etc., to achieve low dielectric loss, high dielectric constant, high The effect of electric strength

Inactive Publication Date: 2018-12-07
史宝林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The ceramic chip prepared by the invention solves the problems of traditional safety capacitors that have incomplete symmetry of electrodes, easy migration of silver ions, and damage to the ceramic body caused by electric strain,

Method used

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  • Miniaturized high-reliability patch type safety ceramic capacitor and processing method thereof
  • Miniaturized high-reliability patch type safety ceramic capacitor and processing method thereof
  • Miniaturized high-reliability patch type safety ceramic capacitor and processing method thereof

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Experimental program
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Embodiment 1

[0031] The production process is as follows:

[0032] 1. Will be made of BaTiO 3 , SrTiO 3 、 Bi 2 o 3 , Nb 2 o 5 , ZnO, MnO 2 After the raw materials are mixed evenly in a certain proportion, they are ground by a sand mill until the fine ceramic powder with particle size D50 below 1.0 μm and D90 below 1.5 μm is sprayed or centrifugally granulated to form a high-performance ceramic powder, of which SL The dielectric constant of characteristic ceramic powder is 300-330, the dielectric loss is less than 0.1%, and the dielectric strength is more than 12KVAC / mm. The dielectric constant of B-characteristic ceramic powder is 3500-4000, and the dielectric loss is less than 2.5%. / mm, the dielectric constant of the E characteristic ceramic powder is 9300-10000, the dielectric loss is less than 1.0%, and the dielectric strength is more than 8KVAC / mm.

[0033] 2. Press the green sheet after 1 safety capacitor ceramic powder is pressed to raise the temperature to 1200°C-1400°C at a...

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Abstract

The invention relates to a miniaturized high-reliability patch type safety ceramic capacitor and a processing method thereof. Ceramic capacitance powders prepared by using BaTiO<3>, SrTiO<3>, Bi<2>O<3>, Nb<2>O<5>, ZnO and MnO<2> raw materials are subjected to compression molding, calcinations and sintering to prepare fully symmetrical ceramic edge-retaining-free copper electrode chip prepared by utilizing a chemical deposition method or a plasma vacuum sputtering method. The miniaturized patch type surface mount ceramic safety container is achieved through adoption of overmolding warping and opening package of the leading-out end material. The advantage is that voltage withstand performance of the product is improved.

Description

technical field [0001] The invention relates to the field of electrical components, in particular to a miniaturized high-reliability patch type safety ceramic capacitor and a processing method thereof. Background technique [0002] With the development of science and technology, the functions of electronic products are becoming more and more perfect, and they are becoming more and more intelligent and informatized. The use of complex electronic circuits has become the development direction of the electronics industry. Solve the safety hazards of electric shock, fire, harmful radiation, chemical, explosion and mechanical injury in electronic products in complex electronic circuits, protect the lives and property of users, safeguard the interests of consumers, promote enterprises to improve product quality, and ensure electronic circuits Safe, reliable and high-quality operation is very important. In complex electronic circuits, product safety and electromagnetic compatibilit...

Claims

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Application Information

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IPC IPC(8): H01G4/12H01G4/224H01G13/00C04B35/47C04B35/468C04B35/622C04B35/626
Inventor 史宝林
Owner 史宝林
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