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公开(公告)号：US20240174548A1
公开(公告)日：2024-05-30
申请号：US18384929
申请日：2023-10-30
申请人： CDGM GLASS CO., LTD
发明人： Lulu MAO , Bo KUANG , Liangzhen HAO
摘要： The present invention provides a glass material that has a suitable thermal expansion coefficient to meet the application in the field of semiconductor manufacturing. A glass material, wherein components thereof are represented by weight percentage, comprising: 43-63% of SiO2; 0-15% of B2O3; 2-15% of Al2O3; 11-30% of BaO; 3-18% of CaO. Through rational component design, the glass material of the present invention has a suitable thermal expansion coefficient and is applicable to the field of semiconductor manufacturing.
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42.发明授权公开(公告)号：US11952311B2
公开(公告)日：2024-04-09
申请号：US17267046
申请日：2018-08-17
申请人： CDGM GLASS CO., LTD.
发明人： Wei Sun
摘要： Disclosed are optical glass, a glass preform or an optical element made therefrom the same and an optical instrument. The optical glass is calculated by a mass percentage content relative to a total mass of glass converted by an oxide, and the optical glass includes: B2O3: 5˜25%, SiO2: 0.5˜15%, ZrO2: 1˜15%, TiO2: 0˜10%, Ta2O5: 0.5˜10%, and La2O3, Gd2O3, Y2O3 and Yb2O3 of which the sum is 50˜75%, and Nb2O5 is not contained, a weight ratio of La2O3 to Gd2O3, i.e., La2O3/Gd2O3, is 1.28˜1.625.
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公开(公告)号：US20240076227A1
公开(公告)日：2024-03-07
申请号：US18231424
申请日：2023-08-08
申请人： CDGM GLASS CO., LTD
发明人： Bo KUANG
摘要： An optical glass, wherein components thereof are represented by weight percentage, including: 1-15% of SiO2; 5-20% of B2O3; 25-50% of La2O3; 1-12% of ZrO2; 5-20% of TiO2; 6-35% of RO, and the RO is total content of MgO, CaO, SrO, and BaO. Through rational component design, the optical glass has low density while having desired refractive index and Abbe number, which meets the lightweight application of optical instruments.
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44.发明授权公开(公告)号：US11807569B2
公开(公告)日：2023-11-07
申请号：US17706964
申请日：2022-03-29
申请人： CDGM GLASS CO., LTD
发明人： Tianlai Yu , Baoping Yuan , Zhenyu Liu
CPC分类号： C03C10/0027 , C03C10/0009 , C03C10/0054
摘要： The present invention discloses a microcrystalline glass, a microcrystalline glass product, and a manufacturing method therefor. The main crystal phase of the microcrystalline glass comprises lithium silicate and a quartz crystal phase. The haze of the microcrystalline glass of the thickness of 0.55 mm is below 0.6%. The microcrystalline glass comprises the following components in percentage by weight: SiO2: 65-85%; Al2O3: 1-15%; Li2O: 5-15%; ZrO2: 0.1-10%; P2O5: 0.1-10%; K2O: 0-10%; MgO: 0-10%; ZnO: 0-10%. A four-point bending strength of the microcrystalline glass product is more than 600 Mpa.
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公开(公告)号：US11440835B2
公开(公告)日：2022-09-13
申请号：US16759766
申请日：2018-11-19
申请人： CDGM GLASS CO., LTD
发明人： Lulu Mao , Bo Kuang , Xiaochun Li , Wei Sun , Zhenyu Liu , Liangzhen Hao
摘要： A glass composition with high Young's modulus and specific modulus, wherein the glass composition includes the following components by weight percentage: 30-46% of SiO2, 0-6% of B2O3, 10-30% of Al2O3, 4-20% of CaO, 2-15% of MgO, and 13-32% of Y2O3. The glass composition uses common chemical raw materials. By reasonably arranging the contents of each component, the glass is good in heat resistance, chemical stability and press-molding devitrification resistance performance, low in high-temperature viscosity, convenient in bubble elimination, with specific modulus above 34 and Young's modulus above 100 GPa, and is suitable for hard disk substrate manufacturing, semiconductor sealing and other fields.
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公开(公告)号：US10913681B2
公开(公告)日：2021-02-09
申请号：US16859527
申请日：2020-04-27
申请人： CDGM GLASS CO., LTD.
发明人： Baoping Yuan
摘要： The present invention discloses a glass-ceramic article and a glass-ceramic for an electric device cover plate, the glass-ceramic comprises, as a predominant crystalline phase, lithium silicate and the quartz crystalline phase, and has a composition expressed in weight percent including: SiO2: 65-85%, Al2O3: 1-15%, Li2O: 5-15%, ZrO2: 0.1-10%, P2O5: 0.1-10%, K2O: 0-10%, MgO: 0-10%, ZnO: 0-10%, and Na2O: 0-5%, wherein (SiO2+Al2O3+Li2O+ZrO2)/P2O5 is 40-90, the falling ball test height is 700 mm or more. By reasonable component design, the present invention achieves excellent mechanical properties of the glass-ceramic and the glass-ceramic article of the present invention and obtains the glass-ceramic or the glass-ceramic article suitable for electronic devices at a lower cost.
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公开(公告)号：US10822266B2
公开(公告)日：2020-11-03
申请号：US16158464
申请日：2018-10-12
申请人： CDGM GLASS CO., LTD.
发明人： Bo Kuang
摘要： The invention provides an optical glass having excellent precision molding performance and having a refractive index of 1.46-1.53 and an Abbe number of 77-84. The optical glass comprises the following components based on cations in the molar percentage: P5+: 10-35%, Al3+: 10-35%, Ba2+: 1-20%, Sr2+: 10-35%, Ca2+: 1-20%, Gd3+: 0-10%, and Na+: 0-10%; the ratio of Sr2+/(Gd3++Na+) being 1-30; anions comprising F− and O2−, wherein the ratio F−/P5+ of F− content relative to the total molar percentage of anions to P5+ content relative to the total molar percentage of cations is 2.5 or more. The invention by rationally adjusting the proportions of the components, the molding performance of the optical glass is improved, and the problem that glass is broken and forms fogs during the molding process is solved, thereby the yield in manufacturing optical elements is improved.
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公开(公告)号：US20200277221A1
公开(公告)日：2020-09-03
申请号：US16859527
申请日：2020-04-27
申请人： CDGM GLASS CO., LTD.
发明人： Baoping YUAN
摘要： The present invention discloses a glass-ceramic article and a glass-ceramic for an electric device cover plate, the glass-ceramic comprises, as a predominant crystalline phase, lithium silicate and the quartz crystalline phase, and has a composition expressed in weight percent including: SiO2: 65-85%, Al2O3: 1-15%, Li2O: 5-15%, ZrO2: 0.1-10%, P2O5: 0.1-10%, K2O: 0-10%, MgO: 0-10%, ZnO: 0-10%, and Na2O: 0-5%, wherein (SiO2+Al2O3+Li2O+ZrO2)/P2O5 is 40-90, the falling ball test height is 700 mm or more. By reasonable component design, the present invention achieves excellent mechanical properties of the glass-ceramic and the glass-ceramic article of the present invention and obtains the glass-ceramic or the glass-ceramic article suitable for electronic devices at a lower cost.
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公开(公告)号：US20180230038A1
公开(公告)日：2018-08-16
申请号：US15751202
申请日：2016-08-10
申请人： CDGM GLASS CO., LTD
发明人： Wei SUN
IPC分类号： C03C3/068
CPC分类号： C03C3/068
摘要： A high refraction low dispersion optical glass having a refractive index of 1.86-1.92 and an Abbe number of 36-42. The components of the optical glass comprise, by weight percentage: B2O3: 1-30%; SiO2: 0-20%; La2O3: 25-55%; Gd2O3: 5-40%; Y2O3: 0-25%; Yb2O3: 0-10%; Ta2O5: 0-10%; Nb2O5: 1-30%; TiO2: 0-10%; ZrO2: 0.5-20%; WO3: 0-10%; ZnO: 0-15%; Al2O3: 0-10%; GeO2: 0-10%; Bi2O3: 0-10%. The optical glass does not contain PbO or F. A high refraction low dispersion optical glass having excellent light transmittance may be obtained by introducing suitable amounts of rare earth oxides having a high refraction low dispersion effect and optimising the proportions of said components.
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公开(公告)号：US09950947B2
公开(公告)日：2018-04-24
申请号：US15025763
申请日：2015-01-16
申请人： CDGM GLASS CO., LTD
发明人： Bo Kuang
摘要： The invention provides an optical glass with rather low transition temperature, high transmittance, chemical stability and good devitrification resistance, wherein the refractive index is 1.60-1.65 and the Abbe number is 62-66. The optical glass comprises, by weight percentage, 30-50% of P2O5, 35-50% of BaO, 2-6% of B2O3, 0-5% of La2O3, 0-5% of Gd2O3, 0.1-5% of Al2O3, 0.1-5% of Li2O, 2-10% of MgO, and 2-10% of CaO. According to the present invention, P2O5 is applied as the network generation body of glass so as to give high transmittance to the glass; a large amount of BaO is a key component for improving the transmittance of glass while improving the refractive index and weather durability of glass, and also the advantages of low transition temperature, good chemical stability and good devitrification resistance are provided.
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