会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • N-drive, p-common light-emitting devices fabricated on an n-type
substrate and method of making same
    • 在n型衬底上制造的N驱动p普通发光器件及其制造方法
    • US5892787A
    • 1999-04-06
    • US635838
    • 1996-04-22
    • Michael R. T. TanAlbert T. YuenShih-Yuan WangGhulam HasnainYu-Min Houng
    • Michael R. T. TanAlbert T. YuenShih-Yuan WangGhulam HasnainYu-Min Houng
    • H01S5/00H01L33/00H01L33/30H01S5/042H01S5/183H01S5/30H01S5/42H01S3/19
    • H01L33/30H01L33/0016H01L33/0062H01S5/18308H01S5/0207H01S5/0421H01S5/18305H01S5/2059H01S5/2063H01S5/3054H01S5/3095H01S5/423
    • A substantially n-type substrate structure having a p-type surface for use in semiconductor devices as a substitute for a p-type semiconductor substrate. The substrate structure comprises a substrate region and a buffer region. The substrate region is a region of n-type compound semiconductor, and includes a degeneratively n-doped portion adjacent its first surface. The buffer region is a region of compound semiconductor doped with a p-type dopant. The buffer region is located on the first surface of the substrate region and includes a surface remote from the substrate region that provides the p-type surface of the substrate structure. The buffer region also includes a degeneratively p-doped portion adjacent the degeneratively n-doped portion of the substrate region. The substrate structure includes a tunnel junction between the degeneratively n-doped portion of the substrate region and the degeneratively p-doped portion of the buffer region. The substrate structure is made by degeneratively doping a substrate region of n-type compound semiconductor material adjacent its first surface with an n-type impurity, and depositing a layer of compound semiconductor material doped with a p-type impurity on the first surface of the substrate region to form a buffer region that includes a surface remote from the substrate region. In the course of depositing the compound semiconductor material to form the buffer region, the compound semiconductor material is degeneratively doped with the p-type impurity at least in a portion adjacent the substrate region to form a tunnel junction between the substrate region and the buffer region.
    • 具有用于半导体器件的p型表面作为p型半导体衬底的替代物的基本为n型衬底结构。 衬底结构包括衬底区域和缓冲区域。 衬底区域是n型化合物半导体的区域,并且包括与其第一表面相邻的退化的n-掺杂部分。 缓冲区是掺杂有p型掺杂剂的化合物半导体的区域。 缓冲区域位于衬底区域的第一表面上并且包括远离衬底区域的表面,该表面提供衬底结构的p型表面。 缓冲区还包括与衬底区域的退化的n掺杂部分相邻的退化的p掺杂部分。 衬底结构包括在衬底区域的退化的n掺杂部分和缓冲区域的退化的p掺杂部分之间的隧道结。 衬底结构是通过用n型杂质将邻近其第一表面的n型化合物半导体材料的衬底区域简单地掺杂制成的,并且在第一表面上沉积掺杂有p型杂质的化合物半导体材料层 衬底区域以形成包括远离衬底区域的表面的缓冲区域。 在沉积化合物半导体材料以形成缓冲区的过程中,化合物半导体材料至少在与衬底区域相邻的部分中被p型杂质退变掺杂以在衬底区域和缓冲区域之间形成隧道结 。
    • 6. 发明授权
    • Method and apparatus for optically and thermally isolating surface
emitting laser diodes
    • 用于光学和热隔离表面发射激光二极管的方法和装置
    • US5729563A
    • 1998-03-17
    • US271606
    • 1994-07-07
    • Shih-Yuan WangMichael R. T. Tan
    • Shih-Yuan WangMichael R. T. Tan
    • H01S5/00H01S5/042H01S5/42H01S3/18
    • H01S5/423H01S5/0425H01S5/18308H01S5/18347H01S5/2081
    • An SEL array having improved optical isolation and heat conduction. The SEL array is constructed from a light generation layer and first and second mirror layers that sandwich the light generation layer. The first mirror and second mirrors reflect light generated in the light generation layer back toward the light generation layer. The first mirror includes a plurality of light isolation regions, each light isolation region extending through the first mirror. The light isolation regions divide the light generation layer into a plurality of light generation regions. Each light generation region corresponds to one of the SELs. Each light isolation region is positioned to prevent light generated in one of the light generation regions from propagating into a neighboring light generation region. In one embodiment of the present invention, the light isolation regions are constructed by providing trenches that extend from the surface of the SEL array through the first mirror. The trenches may be filled with a light absorbing material. The trenches may also be filled with a heat conducting material thereby providing an improved heat dissipation path for heat generated by the SELs. The light isolation regions may also be generated by ion-implanting regions between the SELs or by disordering one of the mirrors in regions between the SELs.
    • 具有改进的光隔离和热传导的SEL阵列。 SEL阵列由光产生层和夹着光产生层的第一和第二镜层构成。 第一镜和第二镜将发光层中产生的光反射回发光层。 第一反射镜包括多个光隔离区域,每个光隔离区域延伸穿过第一反射镜。 光隔离区域将光产生层分成多个发光区域。 每个光产生区域对应于一个SEL。 每个光隔离区域被定位成防止在一个光产生区域中产生的光传播到相邻的光产生区域。 在本发明的一个实施例中,光隔离区域通过提供从SEL阵列的表面延伸穿过第一反射镜的沟槽而构成。 沟槽可以填充有光吸收材料。 沟槽也可以填充导热材料,从而为由SEL产生的热量提供改进的散热路径。 光隔离区域也可以由SEL之间的离子注入区域产生,或者通过使SEL之间的区域中的一个反射镜失调来产生。
    • 7. 发明授权
    • Vertical-cavity surface-emitting laser generating light with a defined
direction of polarization
    • 垂直腔表面发射激光产生具有确定的极化方向的光
    • US5727014A
    • 1998-03-10
    • US551302
    • 1995-10-31
    • Shih-Yuan WangMichael R. T. TanWilliam D. HollandJohn P. ErtelScott W. Corzine
    • Shih-Yuan WangMichael R. T. TanWilliam D. HollandJohn P. ErtelScott W. Corzine
    • H01S5/00H01S5/183H01S5/30H01S5/42H01S3/19
    • H01S5/18355H01S5/18308H01S5/18338H01S5/18394H01S5/3054H01S5/3095H01S5/423
    • A vertical-cavity surface-emitting laser that generates light having a fixed direction of polarization. The laser has a plane light-generating region sandwiched between a first conductive mirror region and a second conductive mirror region. The first conductive mirror region has an opposite conductivity mode from the second conductive mirror region. The first conductive mirror region has a remote surface substantially parallel to the light-generating region and an electrode formed on the remote surface. The electrode bounds a light emission port from which the light is emitted in a direction defining an axis. A reduced-conductivity region is formed in the first conductive mirror region surrounding the axis and extending from the remote surface towards the light-emitting region to define a core region in the first conductive mirror region. The light emission port and/or the core region has first and second dimensions in orthogonal directions in a plane parallel to the light-generating region. The first dimension is greater than the second dimension to set the direction of polarization of the light to the direction of the first dimension.
    • 产生具有固定的偏振方向的光的垂直腔表面发射激光器。 激光器具有夹在第一导电镜区域和第二导电镜面区域之间的平面发光区域。 第一导电镜区域具有与第二导电镜区域相反的导电模式。 第一导电镜区域具有基本上平行于发光区域的远程表面和形成在远程表面上的电极。 电极在限定轴线的方向上限定发光的发光口。 导电区域形成在围绕轴线的第一导电反射镜区域中,并从远程表面朝向发光区域延伸以在第一导电反射镜区域中限定芯区域。 发光端口和/或芯区域在与发光区域平行的平面中具有正交方向上的第一和第二尺寸。 第一尺寸大于第二尺寸以将光的偏振方向设置为第一尺寸的方向。
    • 8. 发明授权
    • Current and heat spreading transparent layers for surface-emitting lasers
    • 用于表面发射激光器的电流和散热透明层
    • US5596595A
    • 1997-01-21
    • US486008
    • 1995-06-08
    • Michael R. T. TanYu-Min HoungShih-Yuan Wang
    • Michael R. T. TanYu-Min HoungShih-Yuan Wang
    • H01S3/04H01S5/00H01S5/024H01S5/042H01S5/183H01S3/08H01S3/18
    • H01S5/18308H01S5/02461H01S5/02476H01S5/0425
    • A surface-emitting laser includes optically transparent layers on a side of a DBR mirror structure that is opposite to an optical cavity of the laser. In one embodiment, the transparent layer is a heat-conducting layer that has an efficient heat transfer relationship with an opening in a top electrode and with a heat-spreading layer. The heat-spreading layer increases the diameter of the electrode, so as to reduce the thermal impedance of the surface-emitting laser. The heat-spreading layer may be annular in shape and may have an inside diameter that is less than the outside diameter of the electrode, allowing the heat-spreading layer to first overlap the electrode and then overlap the portion of the heat-conducting layer that resides on the inside portion of the electrode. In another embodiment, the optically transparent layer is positioned between the top electrode and the top DBR mirror structure of the surface-emitting laser. In this embodiment, the transparent layer is a current-spreading layer that reduces the lateral resistance of the laser. Lateral resistance is reduced by providing a layer having a thickness of one-half of the wavelength of the light energy generated in the laser times an odd multiple greater than one. Optionally, two half-wavelength layers may be formed between the electrode and the mirror structure, with the upper layer being selected primarily for its electrical properties and the lower layer being selected primarily for its optical properties.
    • 表面发射激光器包括在与激光器的光腔相对的DBR镜结构侧的光学透明层。 在一个实施例中,透明层是与顶部电极和散热层中的开口具有有效热传递关系的导热层。 散热层增加了电极的直径,从而降低了表面发射激光器的热阻抗。 散热层可以是环形的,并且可以具有小于电极的外径的内径,使得热扩散层首先与电极重叠,然后与导热层的部分重叠, 位于电极的内部。 在另一个实施例中,光学透明层位于表面发射激光器的顶部电极和顶部DBR镜面结构之间。 在本实施例中,透明层是降低激光器的横向电阻的电流扩散层。 通过提供具有在激光器中产生的光能的波长的一半的厚度的层的厚度乘以大于1的奇数倍来减小横向电阻。 可选地,可以在电极和反射镜结构之间形成两个半波长层,其中上层主要由于其电性质而选择,而下层主要由于其光学性质而选择。