Preparation method of organic carrier

A technology of organic carrier and thickener, which is applied in the field of preparation of organic carrier to achieve the effect of uniform film layer

Inactive Publication Date: 2014-12-24
CHINA ZHENHUA GRP YUNKE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many complicated steps in the process of making an organic carrier, so it is necessary to invent a method for preparing an organic carrier

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0018] In order to make it easy to understand the technical means, creative features, work flow, and use methods of the present invention to achieve the purpose and effect, the following specific examples of the present invention will further elaborate the present invention.

[0019] A method for preparing an organic carrier, comprising the following steps:

[0020] (1) Determination of the thickener, using ethyl cellulose as the thickener;

[0021] (2) the selection of organic solvent, adopt tributyl citrate, butyl carbitol, terpineol etc. as solvent;

[0022] (3) The selection of other additives. The experiment used lecithin as a surfactant, the experiment added castor oil as a thixotropic agent, and the experiment added furoic acid as a leveling agent;

[0023] (4) Make formula; Select ethyl cellulose 8%, tributyl citrate 12%, butylcarbitol 21%, terpineol 57%, other auxiliary agent 2% dissolving carrier, leveling time is 10- 15 minutes, the drying time is 5-10 minutes, th...

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PUM

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Abstract

The invention discloses a preparation method of an organic carrier. The preparation method comprises the following steps: (1) determination of a thickening agent: adopting ethyl cellulose as the thickening agent; (2) selection of organic solvents: adopting tributyl citrate, butyl carbitol, terpilenol and the like as the solvents; (3) selection of other auxiliary agents; and (4) preparation of a formula: dissolving the carrier by adopting the following components in percentage by weight: 8% of ethyl cellulose, 12% of tributyl citrate, 21% of butyl carbitol, 57% of terpilenol and 2% of the auxiliary agents. By adopting the organic carrier in a process disclosed by the invention, slurry has proper viscosity, volatility, thixotropy and levelling properties so as to obtain good printing performance, and a membrane layer subjected to silk-screen printing is uniform, compact, clearer and smoother.

Description

technical field [0001] The invention specifically relates to a method for preparing an organic carrier. Background technique [0002] With the rapid development of microelectronics technology, there are demands for miniaturization, portability, multi-function, digitalization, high reliability and high performance of electronic complete machines. At present, the vast majority of power circuits in the world market use DBC to dissipate heat. DBC technology can provide the thick conductor layer required by power circuits. It is directly bonded with 200-500μm copper foil on both sides of the ceramic substrate, and etched patterns, which are more suitable for high temperature and high current, but the DBC method cannot meet the small, thin, and light requirements of surface mount technology. The thick film metallization method is to use screen printing to seal metal layers, conductors and resistors on the ceramic substrate, and then sinter to form brazing metal layers, circuits a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/28C08K5/521C08K5/101C08K5/1535
Inventor 张力平郭明亚张洪英潘毅韩玉成庞锦标
Owner CHINA ZHENHUA GRP YUNKE ELECTRONICS
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