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US 11,236,012 B2Granted
Boron phosphate glass-ceramics with low dielectric loss
AssigneeCorning Incorporated
InventorsGeorge Halsey Beall, Heather Debra Boek, Ling Cai, Jin Su Kim, Dean Michael Thelen, Mark Owen Weller
Life of this patent
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Abstract
A glass-ceramic that includes: SiO2 from about 35 mol % to about 80 mol %; B2O3 from about 10 mol % to about 50 mol %; P2O5 from about 10 mol % to about 50 mol %; and an optional addition of one or more of CaO, MgO and Bi2O3 from 0 mol % to about 5 mol %, wherein the glass-ceramic further comprises a boron-phosphate crystalline phase.
Claims24
A glass-ceramic, comprising:
- SiO2 from about 35 mol % to about 80 mol %;
- B2O3 from about 10 mol % to about 50 mol %;
- P2O5 from about 23 mol % to about 50 mol %, wherein the ratio of B2O3 to P2O5 ranges from 1:2 to 2:1;
- and
- an optional addition of one or more of CaO, MgO and Bi2O3 from 0 mol % to about 5 mol %,
- wherein the glass-ceramic further comprises a boron-phosphate crystalline phase.
3 more elements
A glass-ceramic, comprising:
- SiO2 from about 35 mol % to about 80 mol %;
- B2O3 from about 10 mol % to about 50 mol %;
- P2O5 from about 10 mol % to about 50 mol %, wherein the ratio of B2O3 to P2O5 ranges from 1:2 to 2:1;
- and
- an optional addition of one or more of CaO, MgO and Bi2O3 from 0 mol % to about 5 mol %,
- wherein the glass-ceramic further comprises a loss tangent of 0.006 or less for signals having a frequency of 1 GHz.
3 more elements
A glass-ceramic, comprising:
- SiO2 from about 35 mol % to about 80 mol %;
- B2O3 from about 10 mol % to about 50 mol %;
- P2O5 from about 10 mol % to about 50 mol %, wherein the ratio of B2O3 to P2O5 ranges from 1:2 to 2:1;
- and
- one or more of CaO, MgO and Bi2O3 from greater than 0 mol % to about 5 mol %,
- wherein the glass-ceramic further comprises a loss tangent of 0.006 or less for signals having a frequency of 1 GHz.
3 more elements
Dependencies are inferred from the claim text.