Electronic component seal glass

A technology for sealing glass and electronic components, which is applied in the field of special performance glass, can solve problems such as harmfulness and non-compliance with environmental protection requirements, and achieve effects that are beneficial to environmental protection and human health

Inactive Publication Date: 2003-04-30
BEIJING YAKANG SPECIAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

We know that the heavy metal lead is harmful to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1-4

[0012] Examples 1-4 composition formula and operating conditions are shown in Table 1 and Table 2 respectively, and product performance is shown in Table 3.

[0013] ingredients

[0014] project

[0015] Coefficient of expansion

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PUM

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Abstract

A sealing glass for electronic element contains SiO2, B2O, ZnO, Sb2O3, Al2O3, Na2O, K2O, Bi2O3, Li2O3 and CaO, and is prepared through smelting, casting and annealing. It does not contain Pb and other harmful substances.

Description

technical field [0001] The invention relates to a special performance glass, in particular to a lead-free sealing glass for electronic components. Background technique [0002] Existing sealing glass for electronic components contains a large amount of metallic lead, for example, the lead content of the existing electronic sealing glass brand DB-435 is 34%, and the lead content of DH-704 is 77%. We know that the heavy metal lead is harmful to the human body and does not meet the requirements of environmental protection. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art and provide a lead-free sealing glass for electronic components. [0004] The composition of the sealing glass of the present invention and its weight percentage content: SiO 2 45-62%, Bi 2 o 3 0.5-8%, BaO3-15%, ZnO2-8%, Sb 2 o 3 0.5-4%, Al 2 o 3 0-3%, Na 2 O6-15%, K 2 O2-6%Bi 2 o 3 0-5%, Li 2 o 3 0-5%, CaO2-8%. [0005] T...

Claims

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Application Information

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IPC IPC(8): C03C3/093C03C8/24
CPCC03C8/24
Inventor 赵宝福张符荣
Owner BEIJING YAKANG SPECIAL GLASS
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