A kind of low-melting-point glass powder, its preparation method and application, and the method for preparing composite glass column by using low-melting-point glass powder

Abstract

The invention relates to the technical field of chemical engineering and electronics, in particular to low-melting-point glass powder, a preparation method and application thereof and a method of utilizing the same to prepare a composite glass column, and aims to solve the problem that existing glass powder is poor in chemical stability, high in cost and incapable of guaranteeing high airtightness in sealing connection of electronic packaging members. The low-melting-point glass powder is composed of, by mass part, stannous oxide, phosphorus pentoxide, zinc oxide, sodium oxide, barium oxide, potassium oxide, silicon dioxide, indium oxide, magnesium oxide, iron oxide, aluminum oxide and strontium oxide. The low-melting-point glass powder is high in chemical stability, proper in linear expansion coefficient, lead-free and environment-friendly, is low in melting point and especially suitable for airtight sealing connection of lead terminals of phased array radar T / R modules and high-precision instruments.

Description

technical field

[0001] The invention relates to the technical fields of chemical industry and electronics, in particular to a low-melting-point glass powder, its preparation method and application, and a method for preparing a composite glass column by using the low-melting-point glass powder. Background technique

[0002] The sealing of glass and metal has a wide range of uses, especially in the fields of electronics, lasers, aerospace, and automobile manufacturing. With the diversification of types and complex shapes of electronic components, the requirements for the sealing technology of glass and metal are getting higher and higher, and the sealing parts are required to have good mechanical properties and electrical conductivity. In the field of electronic packaging, when the low-temperature sealing technology is applied to the transitional sealing technology, the most critical thing is the preparation process of the composite glass column, which includes the preparation...