Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lead-free bismuth-free high-performance dielectric paste

A medium slurry, high-performance technology, applied in electrical components, insulators, circuits, etc., can solve the problems of medium slurry pollution, chemical stability, compactness, etc., and achieve good chemical stability, low softening point, and thermal stability sex good effect

Active Publication Date: 2022-02-15
西安宏星电子浆料科技股份有限公司
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a lead-free and bismuth-free high-performance dielectric slurry, focusing on solving the pollution, chemical stability, and compactness of the dielectric slurry.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lead-free bismuth-free high-performance dielectric paste
  • Lead-free bismuth-free high-performance dielectric paste
  • Lead-free bismuth-free high-performance dielectric paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of modified glass powder: according to the weight percentage, it is composed of 30% barium oxide, 25% silicon dioxide, 6% aluminum oxide, 35% zinc oxide, 3.5% boron trioxide, and 0.5% platinum powder. Dosing 1kg in the ethylene tank, then seal the mouth of the polyethylene tank, place it on an eight-roller ball mill for 1 hour mixing; after the mixing is complete, pour the mixed glass material into a 2L quartz crucible and place it in a 1200°C high temperature resistance Smelting in a furnace for 2 hours, quenching the completely molten glass liquid to obtain glass slag; adding glass slag to deionized water with a weight ratio of 1:0.73 into a 5L corundum ball mill jar, and placing it on an eight-roller ball mill for ball milling. Until its particle size D50≦1.5µm, then use a 325-mesh stainless steel screen to separate the pellets, place the separated glass liquid in an oven at 120°C for 18 hours, and use a 60-mesh stainless steel screen to dry the dried glas...

Embodiment 2

[0026] Preparation of modified glass powder: according to the weight percentage, it is composed of 34% barium oxide, 20% silicon dioxide, 8% aluminum oxide, 30% zinc oxide, 7% boron trioxide, and 1% platinum powder. Dosing 1kg in the ethylene tank, then seal the mouth of the polyethylene tank, place it on an eight-roller ball mill for 1 hour mixing; after mixing, pour the mixed glass material into a 2L quartz crucible and place it in a 1150°C high temperature resistance Smelting in a furnace for 2 hours, quenching the completely molten glass liquid to obtain glass slag; adding glass slag to deionized water with a weight ratio of 1:0.73 into a 5L corundum ball mill jar, and placing it on an eight-roller ball mill for ball milling. Until its particle size D50≦1.5µm, then use a 325-mesh stainless steel screen to separate the pellets, place the separated glass liquid in an oven at 120°C for 18 hours, and use a 60-mesh stainless steel screen to dry the dried glass powder Sieve to o...

Embodiment 3

[0030] Preparation of modified glass powder: according to the weight percentage, it is composed of 40% barium oxide, 18% silicon dioxide, 10% aluminum oxide, 22% zinc oxide, 8.5% boron trioxide, and 1.5% platinum powder. Dosing 1kg in the ethylene tank, then seal the mouth of the polyethylene tank, place it on an eight-roller ball mill for 1 hour mixing; after mixing, pour the mixed glass material into a 2L quartz crucible and place it in a 1100°C high temperature resistance Smelting in the furnace, the melting time is 1 hour, and the glass slag is obtained after quenching the completely molten glass liquid; the weight ratio of glass slag and deionized water is 1:0.73, which is added to a 5L corundum ball mill jar, and placed on an eight-roller ball mill for ball milling. Until its particle size D50≦1.5µm, then use a 325-mesh stainless steel screen to separate the pellets, place the separated glass liquid in an oven at 120°C for 18 hours, and use a 60-mesh stainless steel scree...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses lead-free and bismuth-free high-performance dielectric paste. The dielectric paste is prepared from modified glass powder and an organic carrier, the modified glass powder is obtained by mixing Ba-Si-Zn-Al-Pt series glass powder with methylallyl alcohol and then vibrating through a vibrating mill; the organic carrier is prepared from ethyl cellulose, lecithin and methylallyl alcohol. Compared with traditional high-bismuth glass powder used for the dielectric paste, the glass powder used for the dielectric paste has the advantages that the pollution is low, the particle size of glass powder particles is more concentrated, and the glass powder has a lower softening point and higher chemical stability; and the organic carrier uses methylallyl alcohol to replace traditional terpilenol, so that the chemical stability of the carrier and the dispersity of the carrier to the powder are further improved. The prepared dielectric paste has very high chemical stability, very high compactness and uniformity and low pollution, and can be used in a low-temperature section.

Description

technical field [0001] The invention belongs to the technical field of medium slurry, and in particular relates to a lead-free and bismuth-free medium slurry with superior performance. Background technique [0002] With the development of the times, dielectric paste plays an important role in thick film integrated circuits, electronic components, semiconductors and other industries due to its excellent chemical stability, corrosion resistance, high breakdown voltage and relatively simple preparation process. The performance and demand are increasing; as a protective slurry, the performance requirements of the medium slurry are also increasing. [0003] The glass powders used in traditional dielectric pastes are all high-bismuth system glass powders. Although lead-free has been achieved, with the development of the times, people's requirements for environmental protection have further increased, and the high pollution of bismuth elements has become increasingly popular. Pay ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/00C03C12/00
CPCH01B3/008C03C12/00
Inventor 张豪周碧雷莉君王博王妮
Owner 西安宏星电子浆料科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com