US4863683A
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Conductor paste and method of manufacturing a multilayered ceramic body using the paste
Assignee: Panasonic Holdings Corp
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Filing: 1987-06-24
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Granted: 1989-09-05
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Expires: 2007-06-24
Abstract
Abstract A manufacturing method for a multilayered ceramic body using Cu, Ni, Co or Fe as a conductor material, and a conductor forming paste of particular composition of CuO, NiO, CoO or Fe2O3 as the main component, the paste being applied to the multilayered body. The manufacturing method comprises: a process of forming the multilayered body with conductor paste of CuO, NiO, CoO or Fe2O3 as the main component and insulating paste formed of glass and/or ceramic, so that a binder is removed from the laminate by heat treatment in an oxidizing atmosphere; a process of heat treatment for reducing the oxide; and a sintering process for sintering the laminate in a nitrogen atmosphere.
Inventors
- 👤 Seiichi Nakatani
- 👤 Satoru Yuhaku
- 👤 Hideyuki Okinaka
- 👤 Toru Ishida
- 👤 Osamu Makino
- 👤 Tatsuro Kikuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:44
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; C; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/51; C04B41/5127; C04B41/5144; H01; H01B; H01B1/00; H01B1/20; H10; H10W; H10W20/00; H10W20/40; H10W70/00; H10W70/01; H10W70/05; H10W70/098; H05K3/00; H05K3/46; H05K3/4611; H05K3/4626; H05K3/4629
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
165 words
A method of manufacturing a multilayered ceramic body, comprising the steps of: preparing a multilayered body comprising at least one insulating layer made of an insulating paste comprising an organic binder and a mixture of ceramic and glass, and at least one conductor layer made of a conductor paste having an organic binder and an inorganic component which comprises at least one base metal oxide selected from the group consisting of CuO, NiO, CoO and Fe 2 O 3 ; removing the organic binder from each of said insulating and conductor pastes by heating said multilayered body in an oxidizing atmosphere at a temperature lower than the sintering temperature of said insulating paste; reducing said base metal oxide to a base metal by heating said multilayered body in a reducing atmosphere of a mixed gas of hydrogen and nitrogen at a temperature lower than the sintering temperature of said insulating paste; and sintering said multilayered body by firing said multilayered body in a nitrogen atmosphere.
Claim 2
Independent Claim
165 words
A method of manufacturing a multilayered ceramic body, comprising the steps of: preparing a multilayered body comprising at least one insulating layer made of an insulating paste comprising an organic binder and a mixture of ceramic and glass, and at least one conductor layer made of a conductor paste having an organic binder and an inorganic component which comprises at least one base metal oxide selected from the group consisting of CuO, NiO, CoO and Fe 2 O 3 ; removing the organic binder from each of said insulating and conductor pastes by heating said multilayered body in an oxidizing atmosphere at a temperature lower than the sintering temperature of said insulating paste; reducing said base metal oxide to a base metal by heating said multilayered body in a reducing atmosphere of a mixed gas of hydrogen and nitrogen at a temperature lower than the sintering temperature of said insulating paste; and sintering said multilayered body by firing said multilayered body in a nitrogen atmosphere.
Claim 3
Dependent Claim
39 words
The method according to claim 1, wherein the heating temperature in said binder removing step is lower than the lower of the sintering temperature of said insulating paste and the softening temperature of the glass in said insulating paste.
Claim 4
Dependent Claim
38 words
The method according to claim 1, wherein the heating temperature in said reducing step is lower than the lower of the sintering temperature of said insulating paste and the softening temperature of the glass in said insulating paste.
Claim 5
Dependent Claim
59 words
The method as set forth in claim 1, wherein said conductor paste comprises: an inorganic component comprising CuO powder at 85 to 98 wt % and at least one of Bi 2 O 3 , CdO, MnO 2 and Al 2 O 3 , at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 6
Dependent Claim
67 words
The method as set forth in claim 1, wherein said conductor paste comprises: an inorganic component comprising CuO powder at 75 to 97 wt %, glass powder at 1 to 10 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 and Al 2 O 3 , at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 7
Dependent Claim
38 words
The method as set forth in claim 5, wherein said glass powder comprises an oxide selected from the group consisting of BaO, B 2 O 3 , CaO, MgO, Al 2 O 3 , and SiO 2 .
Claim 8
Dependent Claim
73 words
The method as set forth in claim 1, wherein said conductor paste comprises: an inorganic component comprising a powder of at least one of NiO, Fe 2 O 3 and CoO, at 85 to 98 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 , Al 2 O 3 , and CuO, at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 9
Dependent Claim
81 words
The method as set forth in claim 1, wherein said conductor paste comprises: an inorganic component comprising a powder of at least one of NiO, Fe 2 O 3 and CoO, at 75 to 97 wt %, a glass powder at 1 to 10 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 , Al 2 O 3 and CuO, at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 10
Dependent Claim
37 words
The method as set forth in claim 8, wherein said glass powder comprises an oxide selected from the group consisting of BaO, B 2 O 3 , CaO, MgO, Al 2 O 3 and SiO 2 .
Claim 11
Independent Claim
210 words
A method of manufacturing a multilayered ceramic body, comprising the steps of: preparing a multilayered body comprising a main substrate and at least one laminated body formed on at least one of opposite surfaces of said main substrate, said laminated body comprising a plurality of insulating layers each made of an insulating paste comprising an organic binder and a mixture of ceramic and glass, a plurality of conductor layers each made of a conductor paste having an organic binder and an inorganic component which comprises at least one base metal oxide selected from the group consisting of CuO, NiO, CoO and Fe 2 O 3 , and through holes provided in said insulating layers and filled with said conductor paste for connecting said conductor layers; removing the organic binder from each of said insulating and conductor pastes by heating said multilayered body in an oxidizing atmosphere at a temperature lower than the sintering temperature of said insulating paste; reducing said base metal oxide to a base metal by heating said multilayered body in a reducing atmosphere of a mixed gas of hydrogen and nitrogen at a temperature lower than the sintering temperature of said insulating paste; and sintering said multilayered body by firing said multilayered body in a nitrogen atmosphere.
Claim 12
Independent Claim
210 words
A method of manufacturing a multilayered ceramic body, comprising the steps of: preparing a multilayered body comprising a main substrate and at least one laminated body formed on at least one of opposite surfaces of said main substrate, said laminated body comprising a plurality of insulating layers each made of an insulating paste comprising an organic binder and a mixture of ceramic and glass, a plurality of conductor layers each made of a conductor paste having an organic binder and an inorganic component which comprises at least one base metal oxide selected from the group consisting of CuO, NiO, CoO and Fe 2 O 3 , and through holes provided in said insulating layers and filled with said conductor paste for connecting said conductor layers; removing the organic binder from each of said insulating and conductor pastes by heating said multilayered body in an oxidizing atmosphere at a temperature lower than the sintering temperature of said insulating paste; reducing said base metal oxide to a base metal by heating said multilayered body in a reducing atmosphere of a mixed gas of hydrogen and nitrogen at a temperature lower than the sintering temperature of said insulating paste; and sintering said multilayered body by firing said multilayered body in a nitrogen atmosphere.
Claim 13
Dependent Claim
39 words
The method according to claim 10, wherein the heating temperature in said binder removing step is lower than the lower of the sintering temperature of said insulating paste and the softening temperature of the glass in said insulating paste.
Claim 14
Dependent Claim
38 words
The method according to claim 10, wherein the heating temperature in said reducing step is lower than the lower of the sintering temperature of said insulating paste and the softening temperature of the glass in said insulating paste.
Claim 15
Dependent Claim
22 words
The method as set forth in claim 10, wherein said main substrate has the same composition as that of said insulating layer.
Claim 16
Dependent Claim
34 words
The method as set forth in claim 10, wherein said main substrate is an already sintered substrate comprising one of Al 2 O 3 , SiC, BeO, AlN and MgAl 2 O 4 .
Claim 17
Dependent Claim
59 words
The method as set forth in claim 10, wherein said conductor paste comprises: an inorganic component comprising CuO powder at 85 to 98 wt % and at least one of Bi 2 O 3 , CdO, MnO 2 and Al 2 O 3 , at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 18
Dependent Claim
67 words
The method as set forth in claim 10, wherein said conductor paste comprises: an inorganic component comprising CuO powder at 75 to 97 wt %, glass powder at 1 to 10 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 and Al 2 O 3 , at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 19
Dependent Claim
38 words
The method as set forth in claim 37, wherein said glass powder comprises an oxide selected from the group consisting of BaO, B 2 O 3 , CaO, MgO, Al 2 O 3 , and SiO 2 .
Claim 20
Dependent Claim
73 words
The method as set forth in claim 10, wherein said conductor paste comprises: an inorganic component comprising a powder of at least one of NiO, Fe 2 O 3 and CoO, at 85 to 98 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 , Al 2 O 3 , and CuO, at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 21
Dependent Claim
81 words
The method as set forth in claim 10, wherein said conductor paste comprises: an inorganic component comprising a powder of at least one of NiO, Fe 2 O 3 and CoO, at 75 to 97 wt %, a glass powder at 1 to 10 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 , Al 2 O 3 and CuO, at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 22
Dependent Claim
37 words
The method as set forth in claim 19, wherein said glass powder comprises an oxide selected from the group consisting of BaO, B 2 O 3 , CaO, MgO, Al 2 O 3 and SiO 2 .
Claim 23
Independent Claim
190 words
A method of manufacturing a multilayered ceramic body, comprising the steps of: preparing a multilayered body comprising a main substrate and at least one laminated body formed on at least one of opposite surfaces of said main substrate, said laminated body comprising at least one insulating layer made of an insulating paste comprising an organic binder and a mixture of ceramic and glass, and at least one conductor layer made of a conductor paste having an organic binder and an inorganic component which comprises at least one base metal oxide selected from the group consisting of CuO, NiO, CoO and Fe 2 O 3 ; removing the organic binder from each of said insulating and conductor pastes by heating said multilayered body in an oxidizing atmosphere at a temperature lower than the sintering temperature of said insulating paste; reducing said base metal oxide to a base metal by heating said multilayered body in a reducing atmosphere of a mixed gas of hydrogen and nitrogen at a temperature lower than the sintering temperature of said insulating paste; and sintering said multilayered body by firing said multilayered body in a nitrogen atmosphere.
Claim 24
Independent Claim
190 words
A method of manufacturing a multilayered ceramic body, comprising the steps of: preparing a multilayered body comprising a main substrate and at least one laminated body formed on at least one of opposite surfaces of said main substrate, said laminated body comprising at least one insulating layer made of an insulating paste comprising an organic binder and a mixture of ceramic and glass, and at least one conductor layer made of a conductor paste having an organic binder and an inorganic component which comprises at least one base metal oxide selected from the group consisting of CuO, NiO, CoO and Fe 2 O 3 ; removing the organic binder from each of said insulating and conductor pastes by heating said multilayered body in an oxidizing atmosphere at a temperature lower than the sintering temperature of said insulating paste; reducing said base metal oxide to a base metal by heating said multilayered body in a reducing atmosphere of a mixed gas of hydrogen and nitrogen at a temperature lower than the sintering temperature of said insulating paste; and sintering said multilayered body by firing said multilayered body in a nitrogen atmosphere.
Claim 25
Dependent Claim
39 words
The method according to claim 21, wherein the heating temperature in said binder removing step is lower than the lower of the sintering temperature of said insulating paste and the softening temperature of the glass in said insulating paste.
Claim 26
Dependent Claim
38 words
The method according to claim 21, wherein the heating temperature in said reducing step is lower than the lower of the sintering temperature of said insulating paste and the softening temperature of the glass in said insulating paste.
Claim 27
Dependent Claim
22 words
The method as set forth in claim 21, wherein said main substrate has the same composition as that of said insulating layer.
Claim 28
Dependent Claim
34 words
The method as set forth in claim 21, wherein said main substrate is an already sintered substrate comprising one of Al 2 O 3 , SiC, BeO, AlN and MgAl 2 O 4 .
Claim 29
Dependent Claim
70 words
The method as set forth in claim 21, wherein an outermost layer of said laminated body is one of said insulating layers, and wherein said method further comprises, after said sintering step, the steps of: forming a conductor layer made of a conductor paste whose inorganic component comprises said base metal on said outermost insulating layer; and firing said conductor layer in a neutral atmosphere to sinter said conductor layer.
Claim 30
Dependent Claim
59 words
The method as set forth in claim 21, wherein said conductor paste comprises: an inorganic component comprising CuO powder at 85 to 98 wt % and at least one of Bi 2 O 3 , CdO, MnO 2 and Al 2 O 3 , at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 31
Dependent Claim
67 words
The method as set forth in claim 21, wherein said conductor paste comprises: an inorganic component comprising CuO powder at 75 to 97 wt %; glass powder at 1 to 10 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 and Al 2 O 3 , at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 32
Dependent Claim
38 words
The method as set forth in claim 28, wherein said glass powder comprises an oxide selected from the group consisting of BaO, B 2 O 3 , CaO, MgO, Al 2 O 3 , and SiO 2 .
Claim 33
Dependent Claim
73 words
The method as set forth in claim 21, wherein said conductor paste comprises: an inorganic component comprising a powder of at least one of NiO, Fe 2 O 3 and CoO, at 85 to 98 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 , Al 2 O 3 , and CuO, at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 34
Dependent Claim
81 words
The method as set forth in claim 21, wherein said conductor paste comprises: an inorganic component comprising a powder of at least one of NiO, Fe 2 O 3 and CoO, at 75 to 97 wt %, a glass powder at 1 to 10 wt %, and at least one of Bi 2 O 3 , CdO, MnO 2 , Al 2 O 3 and CuO, at 2 to 15 wt %; an organic binder; and a solvent for the binder.
Claim 35
Dependent Claim
37 words
The method as set forth in claim 31, wherein said glass powder comprises an oxide selected from the group consisting of BaO, B 2 O 3 , CaO, MgO, Al 2 O 3 and SiO 2 .
Claim 36
Dependent Claim
61 words
The method according to claim 1 wherein said mixture of ceramic and glass each comprises at least one member selected from the group consisting of Al 2 O 3 , BaO, B 2 O 3 , SiO 2 , CaO, MgO, Na 2 O, Ta 2 O 5 , Nb 2 O 5 , Li 2 O and K 2 O.
Claim 37
Dependent Claim
61 words
The method according to claim 10 wherein said mixture of ceramic and glass each comprises at least one member selected from the group consisting of Al 2 O 3 , BaO, B 2 O 3 , SiO 2 , CaO, MgO, Na 2 O, Ta 2 O 5 , Nb 2 O 5 , Li 2 O and K 2 O.
Claim 38
Dependent Claim
61 words
The method according to claim 21 wherein said mixture of ceramic and glass each comprises at least one member selected from the group consisting of Al 2 O 3 , BaO, B 2 O 3 , SiO 2 , CaO, MgO, Na 2 O, Ta 2 O 5 , Nb 2 O 5 , Li 2 O and K 2 O.
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| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
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