US4948759A
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Glass ceramic dielectric compositions
Assignee: EIDP Inc
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Filing: 1989-10-19
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Granted: 1990-08-14
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Expires: 2009-10-19
Abstract
Abstract The invention is directed to thick film glass ceramic dielectric compositions in which the dielectric is a mixture of amorphous aluminoborosilicate glass, which upon firing forms a single phase of ceramic crystals in a matrix of amorphous remainder glass, and a ceramic additive to minimize substrate bowing.
Inventors
- 👤 Kumaran M. Nair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:37
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B3/087; C; C03; C03C; C03C10/00; C03C10/0036; C03C10/0045; H01B3/088; H01B3/12; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; C03C2214/00; C03C2214/04; C03C2214/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
103 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass which upon firing at Thick Film Processing Conditions forms a single crystalline phase of Ba 2 AlSi 2 O 8 in a matrix of remainder glass; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 2
Dependent Claim
103 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass which upon firing at Thick Film Processing Conditions forms a single crystalline phase of Ba 2 AlSi 2 O 8 in a matrix of remainder glass; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 3
Dependent Claim
106 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass which upon firing at Thick Film Processing Conditions forms a single crystalline phase of an aluminate of Ba, Ca, Mg or Zn dispersed in a matrix of remainder glass; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 4
Dependent Claim
106 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass which upon firing at Thick Film Processing Conditions forms a single crystalline phase of an aluminate of Ba, Ca, Mg or Zn dispersed in a matrix of remainder glass; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 5
Dependent Claim
115 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass having the composition 30% SiO 2 , 8% TiO 2 , ZrO 2 or mixtures thereof, 10% Al 2 O 3 , 26% BaO, 10% ZnO, 6% CaO, 8% B 2 O 3 , and 2% MgO; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides of Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 6
Dependent Claim
115 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass having the composition 30% SiO 2 , 8% TiO 2 , ZrO 2 or mixtures thereof, 10% Al 2 O 3 , 26% BaO, 10% ZnO, 6% CaO, 8% B 2 O 3 , and 2% MgO; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides of Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 7
Dependent Claim
113 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass having the composition 30% SiO 2 , 8% TiO 2 , ZrO 2 or mixtures thereof, 10% Al 2 O 3 , 10% BaO, 10% ZnO, 24% CaO and 8% B 2 O 3 ; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides of Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 8
Dependent Claim
113 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass having the composition 30% SiO 2 , 8% TiO 2 , ZrO 2 or mixtures thereof, 10% Al 2 O 3 , 10% BaO, 10% ZnO, 24% CaO and 8% B 2 O 3 ; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides of Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 9
Dependent Claim
113 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass having the composition 30% SiO 2 , 8% TiO 2 , ZrO 2 or mixtures therof, 12% Al 2 O 3 , 12% BaO, 24% ZnO, 6% CaO and 8% B 2 O 3 ; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides of Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
Claim 10
Dependent Claim
113 words
A printable thick film dielectric composition consisting essentially of an admixture of finely divided particles of (a) an amorphous aluminoborosilicate glass having the composition 30% SiO 2 , 8% TiO 2 , ZrO 2 or mixtures therof, 12% Al 2 O 3 , 12% BaO, 24% ZnO, 6% CaO and 8% B 2 O 3 ; (b) 1-15% wt., basis total solids, of a ceramic material selected from Al 2 O 3 , SiO 2 , complex oxides of Al 2 O 3 and SiO 2 , Si 3 N 4 , AlN, complex nitrides of Si 3 N 4 and AlN and mixtures thereof, the admixture being dispersed in (c) organic medium.
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