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公开(公告)号：US09935247B2
公开(公告)日：2018-04-03
申请号：US14806761
申请日：2015-07-23
申请人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
发明人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
CPC分类号： H01L33/56 , H01L33/54 , H01L33/58 , H01L2933/005 , H01L2933/0058
摘要： In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.
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公开(公告)号：US20160027975A1
公开(公告)日：2016-01-28
申请号：US14806761
申请日：2015-07-23
申请人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
发明人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
CPC分类号： H01L33/56 , H01L33/54 , H01L33/58 , H01L2933/005 , H01L2933/0058
摘要： In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.
摘要翻译： 在各种实施例中，在紫外（UV）发光半导体管芯的表面上提供有机密封剂层，并且将至少一部分密封剂暴露于UV光以将至少一部分密封剂 成为非化学计量的二氧化硅材料。 非化学计量的二氧化硅材料包括硅，氧和碳，非化学计量的二氧化硅材料的碳含量大于1ppm且小于40原子％。
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公开(公告)号：US11515455B2
公开(公告)日：2022-11-29
申请号：US17083580
申请日：2020-10-29
申请人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
发明人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
摘要： In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.
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公开(公告)号：US10854797B2
公开(公告)日：2020-12-01
申请号：US16421716
申请日：2019-05-24
申请人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
发明人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
摘要： In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.
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公开(公告)号：US10347805B2
公开(公告)日：2019-07-09
申请号：US15898347
申请日：2018-02-16
申请人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
发明人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
摘要： In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.
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公开(公告)号：US20180190883A1
公开(公告)日：2018-07-05
申请号：US15898347
申请日：2018-02-16
申请人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
发明人： Ken Kitamura , Masato Toita , Hironori Ishii , Yuting Wang , Leo J. Schowalter , Jianfeng Chen , James R. Grandusky
CPC分类号： H01L33/56 , H01L33/54 , H01L33/58 , H01L2933/005 , H01L2933/0058
摘要： In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.
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公开(公告)号：US11939700B2
公开(公告)日：2024-03-26
申请号：US17496867
申请日：2021-10-08
申请人： Robert T. Bondokov , James R. Grandusky , Jianfeng Chen , Shichao Wang , Toru Kimura , Thomas Miebach , Keisuke Yamaoka , Leo J. Schowalter
发明人： Robert T. Bondokov , James R. Grandusky , Jianfeng Chen , Shichao Wang , Toru Kimura , Thomas Miebach , Keisuke Yamaoka , Leo J. Schowalter
IPC分类号： C30B29/40 , C30B23/06 , C30B33/02 , H01L33/32 , C01B21/072
CPC分类号： C30B29/403 , C30B23/066 , C30B33/02 , H01L33/32 , C01B21/072 , C01P2006/60
摘要： In various embodiments, single-crystal aluminum nitride boules and substrates are formed from the vapor phase with controlled levels of impurities such as carbon. Single-crystal aluminum nitride may be heat treated via quasi-isothermal annealing and controlled cooling to improve its ultraviolet absorption coefficient and/or Urbach energy.
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公开(公告)号：US11555256B2
公开(公告)日：2023-01-17
申请号：US16444147
申请日：2019-06-18
申请人： Robert T. Bondokov , James R. Grandusky , Jianfeng Chen , Shichao Wang , Toru Kimura , Thomas Miebach , Keisuke Yamaoka , Leo J. Schowalter
发明人： Robert T. Bondokov , James R. Grandusky , Jianfeng Chen , Shichao Wang , Toru Kimura , Thomas Miebach , Keisuke Yamaoka , Leo J. Schowalter
IPC分类号： C30B29/40 , H01L33/32 , C30B23/06 , C30B33/02 , C01B21/072
摘要： In various embodiments, single-crystal aluminum nitride boules and substrates have low Urbach energies and/or absorption coefficients at deep-ultraviolet wavelengths. The single-crystal aluminum nitride may function as a platform for the fabrication of light-emitting devices such as light-emitting diodes and lasers.
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公开(公告)号：US10971665B2
公开(公告)日：2021-04-06
申请号：US16801358
申请日：2020-02-26
摘要： In various embodiments, a rigid lens is attached to a light-emitting semiconductor die via a layer of encapsulant having a thickness insufficient to prevent propagation of thermal expansion mismatch-induced strain between the rigid lens and the semiconductor die.
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公开(公告)号：US11168411B2
公开(公告)日：2021-11-09
申请号：US16444148
申请日：2019-06-18
申请人： Robert T. Bondokov , James R. Grandusky , Jianfeng Chen , Shichao Wang , Toru Kimura , Thomas Miebach , Keisuke Yamaoka , Leo J. Schowalter
发明人： Robert T. Bondokov , James R. Grandusky , Jianfeng Chen , Shichao Wang , Toru Kimura , Thomas Miebach , Keisuke Yamaoka , Leo J. Schowalter
IPC分类号： C30B33/02 , C30B29/40 , H01L33/32 , C30B23/06 , C01B21/072
摘要： In various embodiments, single-crystal aluminum nitride boules and substrates are formed from the vapor phase with controlled levels of impurities such as carbon. Single-crystal aluminum nitride may be heat treated via quasi-isothermal annealing and controlled cooling to improve its ultraviolet absorption coefficient and/or Urbach energy.
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