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公开(公告)号：US10109984B2
公开(公告)日：2018-10-23
申请号：US15535142
申请日：2015-10-02
申请人： SONY CORPORATION
摘要： Provided is an optical semiconductor device including a laminate structural body 20 in which an n-type compound semiconductor layer 21, an active layer 23, and a p-type compound semiconductor layer 22 are laminated in this order. The active layer 23 includes a multiquantum well structure including a tunnel barrier layer 33, and a compositional variation of a well layer 312 adjacent to the p-type compound semiconductor layer 22 is greater than a compositional variation of another well layer 311. Band gap energy of the well layer 312 adjacent to the p-type compound semiconductor layer 22 is smaller than band gap energy of the other well layer 311. A thickness of the well layer 312 adjacent to the p-type compound semiconductor layer 22 is greater than a thickness of the other well layer 311.
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公开(公告)号：US12126137B2
公开(公告)日：2024-10-22
申请号：US17975219
申请日：2022-10-27
申请人： Sony Corporation
发明人： Susumu Sato , Tatsushi Hamaguchi , Shoichiro Izumi , Noriyuki Futagawa , Masamichi Ito , Jugo Mitomo , Hiroshi Nakajima
CPC分类号： H01S5/18388 , H01S5/183 , H01S5/18327 , H01S5/18361 , H01S5/18369 , H01S5/18375 , H01S5/18377 , H01S5/34333 , H01S5/0425 , H01S5/04253 , H01S2304/02 , H01S2304/04
摘要： A light-emitting element includes: a laminated structure body 20 which is formed from a GaN-based compound semiconductor and in which a first compound semiconductor layer 21 including a first surface 21a and a second surface 21b that is opposed to the first surface 21a, an active layer 23 that faces the second surface 21b of the first compound semiconductor layer 21, and a second compound semiconductor layer 22 including a first surface 22a that faces the active layer 23 and a second surface 22b that is opposed to the first surface 22a are laminated; a first light reflection layer 41 that is provided on the first surface 21a side of the first compound semiconductor layer 21; and a second light reflection layer 42 that is provided on the second surface 22b side of the second compound semiconductor layer 22. The first light reflection layer 41 includes a concave mirror portion 43, and the second light reflection layer 42 has a flat shape.
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公开(公告)号：US10199799B2
公开(公告)日：2019-02-05
申请号：US15860211
申请日：2018-01-02
申请人： Sony Corporation
IPC分类号： H01S5/183 , H01S5/10 , H01S5/40 , H01S5/42 , G02B27/48 , H01S5/323 , H01S5/02 , H01S5/042 , H01S5/32 , H01S5/343 , H04N9/31
摘要： A light emitting element includes at least a first light reflecting layer formed on a surface of a substrate, a laminated structural body made of a first compound semiconductor layer, an active layer and a second compound semiconductor layer formed on the first light reflecting layer, and a second electrode and a second light reflecting layer formed on the second compound semiconductor layer, the laminated structural body is configured from a plurality of laminated structural body units, a light emitting element unit is configured from each of the laminated structural body units, and a resonator length in the light emitting element unit is different in every light emitting element unit.
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公开(公告)号：US11489314B2
公开(公告)日：2022-11-01
申请号：US17127383
申请日：2020-12-18
申请人： Sony Corporation
发明人： Susumu Sato , Tatsushi Hamaguchi , Shoichiro Izumi , Noriyuki Futagawa , Masamichi Ito , Jugo Mitomo , Hiroshi Nakajima
摘要： A light-emitting element includes: a laminated structure body 20 which is formed from a GaN-based compound semiconductor and in which a first compound semiconductor layer 21 including a first surface 21a and a second surface 21b that is opposed to the first surface 21a, an active layer 23 that faces the second surface 21b of the first compound semiconductor layer 21, and a second compound semiconductor layer 22 including a first surface 22a that faces the active layer 23 and a second surface 22b that is opposed to the first surface 22a are laminated; a first light reflection layer 41 that is provided on the first surface 21a side of the first compound semiconductor layer 21; and a second light reflection layer 42 that is provided on the second surface 22b side of the second compound semiconductor layer 22. The first light reflection layer 41 includes a concave mirror portion 43, and the second light reflection layer 42 has a flat shape.
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公开(公告)号：US10826275B2
公开(公告)日：2020-11-03
申请号：US16323134
申请日：2017-06-13
申请人： SONY CORPORATION
摘要： A light emitting element includes a laminated structure formed by laminating a first light reflecting layer 41, a light emitting structure 20, and a second light reflecting layer 42. The light emitting structure 20 is formed by laminating, from the first light reflecting layer side, a first compound semiconductor layer 21, an active layer 23, and a second compound semiconductor layer 22. In the laminated structure 20, at least two light absorbing material layers 51 are formed in parallel to a virtual plane occupied by the active layer 23.
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公开(公告)号：US20180366906A1
公开(公告)日：2018-12-20
申请号：US15739853
申请日：2016-05-11
申请人： Sony Corporation
CPC分类号： H01S5/18308 , H01S5/028 , H01S5/0421 , H01S5/0425 , H01S5/18341 , H01S5/18369 , H01S5/18391 , H01S5/2004 , H01S5/34333
摘要： A light emitting element includes a stacked structure 20 in which a first compound semiconductor layer 21, an active layer 23 and a second compound semiconductor layer 22 made of GaN-based compound semiconductors are stacked, a mode loss acting portion 54 provided on the second compound semiconductor layer 22 and configuring a mode loss acting region 55 that acts upon increase or decrease of oscillation mode loss, a second electrode 32, a second light reflection layer 42, a first light reflection layer 41, and a first electrode 31. A current injection region 51, a current non-injection inner side region 52 that surrounds the current injection region 51 and a current non-injection outer side region 53 that surrounds the current non-injection inner side region 52 are formed on the stacked structure 20, and a projection image of the mode loss acting region 55 and a projection image of the current non-injection outer side region 53 overlap with each other.
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公开(公告)号：US10700497B2
公开(公告)日：2020-06-30
申请号：US16143867
申请日：2018-09-27
申请人： SONY CORPORATION
IPC分类号： H01L33/06 , H01S5/343 , H01L33/32 , H01S5/183 , H01S5/22 , H01L21/02 , H01S5/34 , H01S5/30 , H01S5/028 , H01S5/042
摘要： Provided is an optical semiconductor device including a laminate structural body 20 in which an n-type compound semiconductor layer 21, an active layer 23, and a p-type compound semiconductor layer 22 are laminated in this order. The active layer 23 includes a multiquantum well structure including a tunnel barrier layer 33, and a compositional variation of a well layer 312 adjacent to the p-type compound semiconductor layer 22 is greater than a compositional variation of another well layer 311. Band gap energy of the well layer 312 adjacent to the p-type compound semiconductor layer 22 is smaller than band gap energy of the other well layer 311. A thickness of the well layer 312 adjacent to the p-type compound semiconductor layer 22 is greater than a thickness of the other well layer 311.
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公开(公告)号：US10256609B2
公开(公告)日：2019-04-09
申请号：US15758674
申请日：2016-08-18
申请人： Sony Corporation
摘要： A surface-emitting laser according to one embodiment of the technology includes a laser element section that includes a first multi-layer film reflecting mirror, a first semiconductor layer of a first conductivity type, an active layer, a second semiconductor layer of a second conductivity type, a second multi-layer film reflecting mirror, a nitride semiconductor layer of the second conductivity type, and a light output surface in this order. The laser element section further includes an electrode that injects a current into the active layer.
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公开(公告)号：US10199800B2
公开(公告)日：2019-02-05
申请号：US15739853
申请日：2016-05-11
申请人： Sony Corporation
摘要： A light emitting element includes a stacked structure 20 in which a first compound semiconductor layer 21, an active layer 23 and a second compound semiconductor layer 22 made of GaN-based compound semiconductors are stacked, a mode loss acting portion 54 provided on the second compound semiconductor layer 22 and configuring a mode loss acting region 55 that acts upon increase or decrease of oscillation mode loss, a second electrode 32, a second light reflection layer 42, a first light reflection layer 41, and a first electrode 31. A current injection region 51, a current non-injection inner side region 52 that surrounds the current injection region 51 and a current non-injection outer side region 53 that surrounds the current non-injection inner side region 52 are formed on the stacked structure 20, and a projection image of the mode loss acting region 55 and a projection image of the current non-injection outer side region 53 overlap with each other.
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公开(公告)号：US10141721B2
公开(公告)日：2018-11-27
申请号：US15314989
申请日：2015-04-16
申请人： SONY CORPORATION
摘要： A light-emitting element includes at least a GaN substrate 11; a first light reflecting layer 41 formed on the GaN substrate 11 and functioning as a selective growth mask layer 44; a first compound semiconductor layer 21, an active layer 23, and a second compound semiconductor layer 22 that are formed on the first light reflecting layer; and a second electrode 32 and a second light reflecting layer 42 that are formed on the second compound semiconductor layer 22. An off angle of the plane orientation of the surface of the GaN substrate 11 is 0.4 degrees or less, the area of the first light reflecting layer 41 is 0.8S0 or less, where S0 represents the area of the GaN substrate 11, and as a bottom layer 41A of the first light reflecting layer, a thermal expansion relaxation film 44 is formed on the GaN substrate 11.
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