Low-dielectric-constant glass fiber and glass fiber fabric made thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-01302
C03C-01306
출원번호
US-0285503
(2002-11-01)
우선권정보
JP-0102366 (1998-04-14)
발명자
/ 주소
Tamura, Shinichi
출원인 / 주소
Nitto Boseki Co., Ltd.
대리인 / 주소
Nixon &
인용정보
피인용 횟수 :
9인용 특허 :
3
초록▼
Low-dielectric-constant glass fibers having a glass composition comprising, by weight %, 50 to 60% of SiO2, 10 to 18% of Al2O3, 14% to less than 20% of B2O3, 1% to less than 6% of MgO, 2 to 5% of CaO, 0.5 to 5% of TiO2, 0 to 0.3% of Li2O, 0 to 0.3% of Na2O, 0 to 0.5% of K2O and 0 to 2% of F2, the co
Low-dielectric-constant glass fibers having a glass composition comprising, by weight %, 50 to 60% of SiO2, 10 to 18% of Al2O3, 14% to less than 20% of B2O3, 1% to less than 6% of MgO, 2 to 5% of CaO, 0.5 to 5% of TiO2, 0 to 0.3% of Li2O, 0 to 0.3% of Na2O, 0 to 0.5% of K2O and 0 to 2% of F2, the content of MgO+CaO being 4 to 11% and the content of Li2O+Na2O+K2O being 0 to 0.6%. The glass fiber has a low dielectric constant and a low dielectric tangent, is excellent in productivity and workability and is also excellent in water resistance, and the glass fiber is suitable for reinforcing printed wiring boards for high-density circuits.
대표청구항▼
1. A low-dielectric-constant glass fiber having a glass composition consisting of, by weight %, 53 to 57% of SiO2, 13 to 16% of Al2O3, 15 to 19% of B2O3, 3% to less than 6% of MgO, 2 to 4.7% of CaO, 1 to 4% of TiO2, 0 to 0.3% of Li2O, 0 to 0.3% of Na2O, 0 to 0.5% of K2O, and 0 to 1% of F2, the conte
1. A low-dielectric-constant glass fiber having a glass composition consisting of, by weight %, 53 to 57% of SiO2, 13 to 16% of Al2O3, 15 to 19% of B2O3, 3% to less than 6% of MgO, 2 to 4.7% of CaO, 1 to 4% of TiO2, 0 to 0.3% of Li2O, 0 to 0.3% of Na2O, 0 to 0.5% of K2O, and 0 to 1% of F2, the content of MgO+CaO being 7 to 10% and the content of Li2O+Na2O+K2O being 0.2 to 0.5%,wherein the low-dielectric-constant glass has a dielectric constant of 5.0 or lower, a dielectric tangent 10×1031 4 or less, a spinning temperature (a temperature at which a glass viscosity comes to be 1×102 Pa·s) of 1,350° C. or lower, a B2O3 volatilization amount of 4 ppm or less and a water-resistance loss of 0.5% by weight or less. 2. The low-dielectric-constant glass fiber of claim 1, which is for use as a glass fiber for a printed wiring board.3. A glass fiber fabric made of the low-dielectric-constant glass fiber recited in claim 1.4. The glass fiber fabric of claim 3, wherein the low-dielectric-constant glass fiber has a glass composition comprising, by weight %, 0 to 0.2% of Li2O, 0 to 0.2% of Na2O, 0 to 0.2% of K2O and 0.2 to 1% of F2.5. The glass fiber fabric of claim 3, which is for use as a glass fiber fabric for a printed wiring board.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (3)
Tamura Shinichi,JPX ; Mori Masahiro,JPX, Glass fiber of low permittivity.
Creux, Sophie; Lecomte, Emmanuel; Renaud, Nicolas, Glass fibre for the reinforcement of organic and/or inorganic materials, method for production of said glass fibres and corresponding composition.
Peters, James Carl; Serrano, Juan Camilo; Li, Hong; Richards, Cheryl A.; Parks, Steven Joel, Low density and high strength fiber glass for reinforcement applications.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.