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A method for detecting the dispersibility of conductive paste for mlcc

Active Publication Date: 2021-11-26
大连海外华昇电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This invention only detects the dispersibility of raw materials, and cannot evaluate the dispersibility of the conductive paste

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  • A method for detecting the dispersibility of conductive paste for mlcc
  • A method for detecting the dispersibility of conductive paste for mlcc
  • A method for detecting the dispersibility of conductive paste for mlcc

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] A method for detecting the dispersibility of conductive paste for MLCC has the following steps:

[0030] S1. Obtain the thermal cracking temperature of each raw material component (dispersant, organic solvent, plasticizer, metal powder and inorganic additives, etc.) Adding 1-5°C is the drying temperature for drying. In this embodiment...

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Abstract

The invention discloses a method for detecting the dispersibility of conductive paste used in MLCC. The conductive paste to be detected is coated on a smooth plastic film with a film wiper to obtain a sample film with uniform surface and uniform thickness; the sample film is combined with the plastic Put the film into the center of the oven for drying; take the dried sample film together with the plastic film out of the oven; on a clean paper, peel off the plastic film on the dried sample film and keep the dried sample film. For the integrity of the sample film, use a knife to cut the above sample film into a plurality of sample films to be tested with equal length and width; each sample film to be tested is measured by an MD-300S electronic specific gravity balance, and the dryness corresponding to each sample to be tested is obtained. Film density, the dry film density corresponding to the conductive paste to be tested is the average value of the above measurement results. The invention judges whether the dispersibility of the conductive paste is good or not according to the dry film density, and can evaluate the dispersibility of the submicron conductive paste, and the method is fast and convenient.

Description

technical field [0001] The invention relates to a method for detecting the dispersibility of conductive paste for MLCC, in particular to a method for detecting the dispersibility of conductive paste for submicron MLCC. Background technique [0002] MLCC (Multi-layer Ceramic Capacitors) is a chip multilayer ceramic capacitor. MLCC products have outstanding advantages, such as small size, compact structure, long life, high reliability and suitable for surface mount (SMT). wider. The current development direction of chip multilayer ceramic capacitors (MLCC) is chip type, large capacity, low cost, miniaturization and high reliability, which puts forward higher requirements for its key raw materials, ceramic paste and metal conductive paste. Since ultrafine powder has a large specific surface area and high surface energy, it is very easy to agglomerate and spontaneously aggregate. How to evaluate the dispersibility after making a slurry is one of the difficulties. [0003] The ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N9/36G01N1/28G01N1/44
CPCG01N1/286G01N1/44G01N9/36G01N2001/2873
Inventor 李岩陈将俊王辉
Owner 大连海外华昇电子科技有限公司