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公开(公告)号:US20150115223A1
公开(公告)日:2015-04-30
申请号:US14526427
申请日:2014-10-28
Applicant: Seoul Viosys Co., Ltd.
Inventor: Woo Chul Kwak , Seung Kyu Choi , Chae Hon Kim , Jung Whan Jung , Yong Hyun Baek , Sam Seok Jang , Su Youn Hong , Mi Gyeong Jeong
IPC: H01L29/20 , H01L29/205 , H01L29/15 , H01L29/201
CPC classification number: H01L29/2003 , H01L21/02458 , H01L21/02513 , H01L21/0254 , H01L21/02576 , H01L21/0262 , H01L29/0607 , H01L29/155 , H01L29/201 , H01L29/205 , H01L33/02 , H01L33/025 , H01L33/04 , H01L33/20 , H01L33/22
Abstract: Disclosed are semiconductor devices and methods of manufacturing the same. The semiconductor device includes: a first conductive type semiconductor layer including a first lower conductive type semiconductor layer and a first upper conductive type semiconductor layer; a V-pit passing through at least one portion of the first upper conductive type semiconductor layer; a second conductive type semiconductor layer placed over the first conductive type semiconductor and filling the V-pit; and an active layer interposed between the first and second conductive type semiconductor layers with the V-pit passing through the active layer. The first upper conductive type semiconductor layer has a higher defect density than the first lower conductive type semiconductor layer and includes a V-pit generation layer comprising a starting point of the V-pit. The semiconductor device includes the V-pits having a large size and a high density to efficiently preventing damage to the semiconductor device due to electrostatic discharge.
Abstract translation: 公开了半导体器件及其制造方法。 半导体器件包括:第一导电型半导体层,包括第一下导电型半导体层和第一上导电型半导体层; 通过所述第一上导电型半导体层的至少一部分的V凹坑; 放置在所述第一导电型半导体上并填充所述V坑的第二导电型半导体层; 以及插入在第一和第二导电类型半导体层之间的有源层,其中V坑穿过有源层。 第一上导电型半导体层具有比第一下导电型半导体层更高的缺陷密度,并且包括包含V坑的起点的V坑生成层。 半导体器件包括具有大尺寸和高密度的V型凹坑,以有效地防止由于静电放电对半导体器件的损坏。
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公开(公告)号:US11557695B2
公开(公告)日:2023-01-17
申请号:US17165177
申请日:2021-02-02
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Yong Hyun Baek , Ji Hun Kang , Chae Hon Kim , Ji Hoon Park
Abstract: A light emitting diode includes an n-type nitride semiconductor layer, a V-pit generation layer located over the n-type nitride semiconductor layer and having a V-pit, an active layer located on the V-pit generation layer, and a p-type nitride semiconductor layer located on the active layer. The active layer includes a well layer, which includes a first well layer portion formed along a flat surface of the V-pit generation layer and a second well layer portion formed in the V-pit of the V-pit generation layer. The light emitting diode emits light having at least two peak wavelengths at a single chip level.
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公开(公告)号:US09287367B2
公开(公告)日:2016-03-15
申请号:US14526427
申请日:2014-10-28
Applicant: Seoul Viosys Co., Ltd.
Inventor: Woo Chul Kwak , Seung Kyu Choi , Chae Hon Kim , Jung Whan Jung , Yong Hyun Baek , Sam Seok Jang , Su Youn Hong , Mi Gyeong Jeong
IPC: H01L29/06 , H01L29/20 , H01L29/15 , H01L29/201 , H01L29/205 , H01L33/04 , H01L33/02 , H01L33/22
CPC classification number: H01L29/2003 , H01L21/02458 , H01L21/02513 , H01L21/0254 , H01L21/02576 , H01L21/0262 , H01L29/0607 , H01L29/155 , H01L29/201 , H01L29/205 , H01L33/02 , H01L33/025 , H01L33/04 , H01L33/20 , H01L33/22
Abstract: Disclosed are semiconductor devices and methods of manufacturing the same. The semiconductor device includes: a first conductive type semiconductor layer including a first lower conductive type semiconductor layer and a first upper conductive type semiconductor layer; a V-pit passing through at least one portion of the first upper conductive type semiconductor layer; a second conductive type semiconductor layer placed over the first conductive type semiconductor and filling the V-pit; and an active layer interposed between the first and second conductive type semiconductor layers with the V-pit passing through the active layer. The first upper conductive type semiconductor layer has a higher defect density than the first lower conductive type semiconductor layer and includes a V-pit generation layer comprising a starting point of the V-pit. The semiconductor device includes the V-pits having a large size and a high density to efficiently preventing damage to the semiconductor device due to electrostatic discharge.
Abstract translation: 公开了半导体器件及其制造方法。 半导体器件包括:第一导电型半导体层,包括第一下导电型半导体层和第一上导电型半导体层; 通过所述第一上导电型半导体层的至少一部分的V凹坑; 放置在所述第一导电型半导体上并填充所述V坑的第二导电型半导体层; 以及插入在第一和第二导电类型半导体层之间的有源层,其中V坑穿过有源层。 第一上导电型半导体层具有比第一下导电型半导体层更高的缺陷密度,并且包括包含V坑的起点的V坑生成层。 半导体器件包括具有大尺寸和高密度的V型凹坑,以有效地防止由于静电放电对半导体器件的损坏。
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公开(公告)号:US12176458B2
公开(公告)日:2024-12-24
申请号:US18200356
申请日:2023-05-22
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Dae Hong Min , Jun Ho Yoon , Woo Cheol Gwak , Jin Woo Huh , Yong Hyun Baek
Abstract: A light emitting device includes a substrate; a pattern of a plurality of protrusions protruding from the substrate; a first semiconductor layer provided on the substrate; an active layer provided on the first semiconductor layer; and a second semiconductor layer provided on the active layer, in which each of the protrusions includes a first layer formed integrally with the substrate and protruding from an upper surface of the base substrate; and a second layer provided on the first layer and formed of a material different from that of the first layer.
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公开(公告)号:US12125945B2
公开(公告)日:2024-10-22
申请号:US18097319
申请日:2023-01-16
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Yong Hyun Baek , Ji Hun Kang , Chae Hon Kim , Ji Hoon Park
Abstract: A light emitting diode includes an n-type nitride semiconductor layer, a V-pit generation layer located over the n-type nitride semiconductor layer and having a V-pit, an active layer located on the V-pit generation layer, and a p-type nitride semiconductor layer located on the active layer. The active layer includes a well layer, which includes a first well layer portion formed along a flat surface of the V-pit generation layer and a second well layer portion formed in the V-pit of the V-pit generation layer. The active layer emits light having at least two peak wavelengths at a single chip level.
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公开(公告)号:US11843076B2
公开(公告)日:2023-12-12
申请号:US18130063
申请日:2023-04-03
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Yong Hyun Baek , Ji Hun Kang , Chae Hon Kim , Ji Hoon Park , So Ra Lee
IPC: H01L33/06 , H01L25/075 , H01L33/24 , H01L33/32 , H01L33/62 , G09G3/32 , G09G3/20 , F21S6/00 , F21Y115/10 , F21W107/30 , F21W106/00
CPC classification number: H01L33/06 , G09G3/2003 , G09G3/32 , H01L25/0753 , H01L33/24 , H01L33/32 , H01L33/62 , F21S6/003 , F21W2106/00 , F21W2107/30 , F21Y2115/10 , G09G2300/0452 , G09G2320/0666
Abstract: A lighting apparatus includes a light emitting diode, in which the light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The light emitting diode emits light that varies from yellow light to white light depending on a driving current.
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公开(公告)号:US11658263B2
公开(公告)日:2023-05-23
申请号:US17193443
申请日:2021-03-05
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Ji Hoon Park , Ji Hun Kang , Chae Hon Kim , Yong Hyun Baek , Hyo Shik Choi
CPC classification number: H01L33/0095 , H01L22/20
Abstract: A method of fabricating a light emitting device includes (i) determining whether each measurement location is defective or not based on a measurement result of the emission wavelength of each location, (ii) forming a test stacked structure by combining one of the first wafers, one of the second wafers, and one of the third wafers in a set of wafers, and (iii) calculating a combination yield of the test stacked structure based on a count of defective measurement locations that overlap in the test stacked structure.
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公开(公告)号:US09799800B2
公开(公告)日:2017-10-24
申请号:US14830651
申请日:2015-08-19
Applicant: Seoul Viosys Co., Ltd.
Inventor: Sam Seok Jang , Woo Chul Kwak , Kyung Hae Kim , Jung Whan Jung , Yong Hyun Baek
CPC classification number: H01L33/145 , H01L33/007 , H01L33/0075 , H01L33/06 , H01L33/14 , H01L33/325
Abstract: A light emitting device is provided to include an n-type semiconductor layer, a p-type semiconductor layer, an active layer, and an electron blocking layer disposed between the p-type semiconductor layer and the active layer. The p-type semiconductor layer includes a hole injection layer, a p-type contact layer, and a hole transport layer. The hole transport layer includes a plurality of undoped layers and at least one intermediate doped layer disposed between the undoped layers. At least one of the undoped layers includes a zone in which hole concentration decreases with increasing distance from the hole injection layer or the p-type contact layer, and the intermediate doped layer is disposed to be at least partially overlapped with a region of the hole transport layer, the region having the hole concentration of 62% to 87% of the hole concentration of the p-type contact layer.
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公开(公告)号:US12250839B2
公开(公告)日:2025-03-11
申请号:US18530694
申请日:2023-12-06
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Yong Hyun Baek , Ji Hun Kang , Chae Hon Kim , Ji Hoon Park , So Ra Lee
IPC: H01L33/06 , G09G3/20 , G09G3/32 , H01L25/075 , H01L33/24 , H01L33/32 , H01L33/62 , H10H20/812 , H10H20/821 , H10H20/825 , H10H20/857 , F21S6/00 , F21W106/00 , F21W107/30 , F21Y115/10
Abstract: A lighting apparatus includes a light emitting diode, in which the light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The light emitting diode emits light that varies from yellow light to white light depending on a driving current.
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公开(公告)号:US12095001B2
公开(公告)日:2024-09-17
申请号:US17228225
申请日:2021-04-12
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Yong Hyun Baek , Ji Hun Kang , Chae Hon Kim , Ji Hoon Park
Abstract: A light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The active layer has a single structure of a multi-quantum well in which a plurality of barrier layers and a plurality of well layers are stacked, and the active layer emits white light.
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