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Glass composition, glass powder and conductive paste

A technology for glass composition and conductive paste, applied in the field of glass composition, glass powder and conductive paste, can solve the problems of increased cost of device introduction, increased manufacturing process, etc., and achieves the effect of high fire-through property

Inactive Publication Date: 2021-03-05
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As a method of removing the insulating layer, a method of physically removing it using a laser or the like is mentioned, but this method involves an increase in the number of manufacturing steps and an increase in device introduction cost.

Method used

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  • Glass composition, glass powder and conductive paste
  • Glass composition, glass powder and conductive paste
  • Glass composition, glass powder and conductive paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0108] Hereinafter, the present invention will be described in further detail with reference to examples, but the present invention is not limited to the examples. Examples 1-9 are examples, and Examples 10-13 are comparative examples.

example 1～13

[0110] A sheet-shaped glass composition was produced by the following method, glass powder was produced from the glass composition, and the particle size distribution of the glass powder was measured.

[0111]

[0112] Raw material powders were blended and mixed so as to have the composition shown in Table 1, melted in a crucible in an electric furnace at 900°C to 1200°C for 30 minutes to 1 hour, and formed into a sheet-like glass containing the glass composition. In Examples 12 and 13, devitrification (crystallization) occurred, and a glass composition could not be obtained. In Table 1, blank columns in the column of each component of the glass composition indicate that the content is 0%, that is, less than the detection limit.

[0113]

[0114]

[0115] In Examples 1 to 11, the particle size distribution was adjusted by pulverizing the obtained sheet-shaped glass as follows by combining dry pulverization and wet pulverization.

[0116] Dry pulverization was performed...

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Abstract

The invention relates to a glass composition, a glass powder and a conductive paste. The purpose of the present invention is to provide a glass composition which is mixed with a conductive metal powder and an organic vehicle and slurried to obtain a conductive paste having high burn-through properties. The glass composition contains, in mol% in terms of oxides, 0.1% to 30% of SiO2, 0.1% to 30% ofB2O3, 45% to 70% of PbO, 0.1% to 10% of Al2O3, 0.1% to 8% of V2O5, 0.1% to 8% of Nb2O5, and 0 to 5% of Y2O3.

Description

technical field [0001] The present invention relates to a glass composition, glass powder, and conductive paste, and particularly to a glass composition, glass powder, and conductive paste using the glass composition and the glass powder, which are suitable for electrode formation of solar cells. Background technique [0002] Conventionally, electronic devices in which conductive layers serving as electrodes are formed on semiconductor substrates such as silicon (Si) have been used in various applications. The conductive layer to be the electrode is usually formed by applying a conductive paste obtained by dispersing conductive metal powder such as silver (Ag), aluminum (A1), copper (Cu) and glass powder in an organic vehicle. On the semiconductor substrate, and bake at 600℃~950℃ for a short time. [0003] When forming an electrode on a semiconductor substrate, an insulating film may be formed on the semiconductor substrate, and a patterned electrode may be formed so as to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/072C03C12/00H01B1/16H01B1/22H01L31/0224
CPCC03C3/072C03C12/00H01B1/16H01B1/22H01L31/022425
Inventor 中北要佑石冈七瑛秋山奈奈子
Owner ASAHI GLASS CO LTD