Ceramic slurry for filter capacitor, preparation method of filter capacitor and filter capacitor
A technology of filter capacitors and ceramic materials, applied in the direction of fixed capacitor dielectrics, capacitors, fixed capacitors, etc., can solve the problems of capacitance and insulation resistance reduction, electrode overlapping area reduction, etc., achieve high capacitance, increase density, and increase crystal density. Effect of Boundary Thickness
Pending Publication Date: 2022-07-01
LIAONING SILICATE RES INST
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However, the ceramic plate array filter capacitor is a multi-layer plate structure with multiple signal holes. The signal holes in the middle of the complete monolithic structure will reduce the overlapping area of the electrodes, which in turn will lead to a decrease in capacitance and insulation resistance.
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[0033] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of the invention as recited in the appended claims.
[0034] In order to improve the capacitance and insulation resistance of the ceramic plate array filter capacitor, this embodiment studies the ceramic matrix in the ceramic plate array filter capacitor. The ceramic matrix is composed of various constituent phases, such as crystal phase, glass phase, gas phase, etc. , their shape, size, number and distribution, grain boundary width and the relationshi...
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Abstract
The invention provides ceramic slurry for a filter capacitor, a preparation method of the filter capacitor and the filter capacitor, and the ceramic slurry is characterized in that a certain amount of metal oxide is added on the basis of existing ceramic powder, so that the grain boundary thickness of a prepared ceramic diaphragm is increased, a ferroelectric phase is diluted, and the insulation degree of grains is improved; meanwhile, by adding the dispersing agent, the plasticizer, the adhesive, the defoaming agent and other adding components, sintering can be promoted, the density of a ceramic matrix is improved, and therefore the electrical property of a device is improved; according to the filter capacitor and the preparation method thereof, the ceramic slurry is adopted, so that the prepared filter capacitor has the advantages of high capacitance, high resistance edge resistance and the like.
Description
technical field [0001] The invention discloses the technical field of the preparation of filter capacitors, in particular to a ceramic slurry for filter capacitors, a preparation method of a filter capacitor and a filter capacitor thereof. Background technique [0002] With the rapid development of electronic products and the increasingly complex electromagnetic interference environment, various anti-electromagnetic interference devices are particularly important. Generally, the suppression effect of filter capacitors on electromagnetic interference mainly depends on the capacitance. The larger the capacitance, the better the corresponding electromagnetic interference effect, and the capacitance is inversely proportional to the thickness. The thickness of the capacitor must be reduced, but the mechanical strength of the capacitor is affected by the reduced thickness. [0003] Most of the traditional filter capacitors use tube capacitors, which are generally single-layer cer...
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IPC IPC(8): H01G4/12H01G4/38H01G4/00
CPCH01G4/1227H01G4/38H01G4/00
Inventor 梁启如李磊张明高阳张婷婷许壮志
Owner LIAONING SILICATE RES INST