IP Library Granted Patent US 8,895,460
Granted Patent B2
US 8,895,460 · App. 13/259,327 · Granted Nov 25, 2014

Glass composition, electrically conductive paste composition comprising same, electrode wiring member, and electronic component

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Quick Facts
Patent No.
US 8,895,460
App. No.
13/259,327
Granted
Nov 25, 2014
Kind
B2
Abstract

A glass composition according to the present invention comprises: phosphorus, vanadium and at least one transition metal selected from a group consisting of tungsten, iron, and manganese, the glass composition not containing substances included in the JIG level A and B lists, a softening point of the glass composition being 550° C. or lower.

Claims (33)

1. A glass composition, comprising: phosphorus, vanadium, tungsten and at least one transition metal selected from a group consisting of iron, manganese, and zinc, the glass composition not containing substances included in the JIG level A and B lists and alkali metal, a softening point of the glass composition being 550° C. or lower.

2. An electrically conductive paste composition, comprising: the glass composition according to claim 1 ; a metal powder; and a vehicle.

3. The electrically conductive paste composition according to claim 2 , wherein the metal powder is silver, copper, aluminum, or an alloy containing one of these metals as a major constituent.

4. An electrode/wiring member, including: the glass composition according to claim 1 ; and a metal powder.

5. The electrode/wiring member according to claim 4 , wherein the metal powder is silver, copper, aluminum, or an alloy containing one of these metals as a major constituent.

6. An electronic component, comprising an electrode/wiring member, the electrode/wiring member including:

a metal powder; and

a glass phase made from the glass composition according to claim 1 .

7. The electronic component according to claim 6 , wherein the electronic component is a display device, a solar cell panel, or a ceramic mounting board.

8. A glass composition, comprising phosphorus and transition metals, the transition metals including: vanadium and tungsten; and iron and/or manganese, the glass composition not containing substances included in the JIG level A and B lists and alkali metals, wherein:

the phosphorus (P), the vanadium (V), the iron (Fe) and the manganese (Mn) are on the oxide basis in the form of P 2 O 5 , V 2 O 5 , Fe 2 O 3 and MnO 2 , respectively;

numerical values of mass percentages of the P 2 O 5 , the V 2 O 5 , the Fe 2 O 3 and the MnO 2 satisfy the equation (1) below; and

a total mass percentage of the Fe 2 O 3 and the MnO 2 is within a range from 5 to 15 mass %

3×[V 2 O 5 ]/[P 2 O 5 ]<[Fe 2 O 3 ]+[MnO 2 ]  Equation (1)

9. An electrically conductive paste composition, comprising: the glass composition according to claim 8 ; a metal powder; and a vehicle.

10. The electrically conductive paste composition according to claim 9 , wherein the metal powder is silver, copper, aluminum, or an alloy containing one of these metals as a major constituent.

11. An electrode/wiring member, including: the glass composition according to claim 8 ; and a metal powder.

12. The electrode/wiring member according to claim 11 , wherein the metal powder is silver, copper, aluminum, or an alloy containing one of these metals as a major constituent.

13. An electronic component, comprising an electrode/wiring member, the electrode/wiring member including:

a metal powder; and

a glass phase made from the glass composition according to claim 8 .

14. The electronic component according to claim 13 , wherein the electronic component is a display device, a solar cell panel, or a ceramic mounting board.

15. A glass composition, comprising, on average and on the oxide basis: 25 to 60 mass % of V 2 O 5 (vanadium pentoxide); 12 to 30 mass % of P 2 O 5 (phosphorus pentoxide); 0 to 15 mass % of Fe 2 O 3 (ferric oxide); 0 to 15 mass % of MnO 2 (manganese dioxide); 5 to 40 mass % of WO 3 (tungsten trioxide); 0 to 30 mass % of BaO (barium oxide); and 0 to 20 mass % of ZnO (zinc oxide), the glass composition not containing substances included in the JIG level A and B lists and alkali metals, wherein:

a total content of the Fe 2 O 3 and the MnO 2 is within a range from 5 to 15 mass %; and

a total content of the BaO and the ZnO is within a range from 0 to 30 mass %.

16. An electrically conductive paste composition, comprising: the glass composition according to claim 15 ; a metal powder; and a vehicle.

17. The electrically conductive paste composition according to claim 16 , wherein the metal powder is silver, copper, aluminum, or an alloy containing one of these metals as a major constituent.

18. An electrode/wiring member, including: the glass composition according to claim 15 ; and a metal powder.

19. The electrode/wiring member according to claim 18 , wherein the metal powder is silver, copper, aluminum, or an alloy containing one of these metals as a major constituent.

20. An electronic component, comprising an electrode/wiring member, the electrode/wiring member including:

a metal powder; and

a glass phase made from the glass composition according to claim 15 .

21. The electronic component according to claim 20 , wherein the electronic component is a display device, a solar cell panel, or a ceramic mounting board.

Assignments (6)
CHANGE OF ADDRESS Recorded Feb 14, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066599/0037 →
CHANGE OF NAME Recorded Mar 13, 2023
From: SHOWA DENKO MATERIALS CO., LTD.
To: RESONAC CORPORATION
Reel/Frame 063069/0417 →
MERGER Recorded Mar 10, 2023
From: HITACHI POWDERED METALS CO., LTD.
To: HITACHI CHEMICAL COMPANY, LTD.
Reel/Frame 063052/0251 →
CHANGE OF NAME Recorded Mar 10, 2023
From: HITACHI CHEMICAL COMPANY, LTD.
To: SHOWA DENKO MATERIALS CO., LTD.
Reel/Frame 063052/0885 →
MERGER Recorded Mar 9, 2023
From: HITACHI POWDERED METALS CO., LTD.
To: HITACHI CHEMICAL COMPANY, LTD.
Reel/Frame 062930/0328 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 29, 2011
From: TACHIZONO, SHINICHI; YOSHIMURA, KEI; HASHIBA, YUJI; NAITO, TAKASHI; AOYAGI, TAKUYA
To: HITACHI POWDERED METALS CO., LTD.
Reel/Frame 027293/0575 →