Long wavelength vertical cavity surface emitting lasers
    2.
    发明授权
    Long wavelength vertical cavity surface emitting lasers 失效
    长波长垂直腔表面发射激光器

    公开(公告)号:US07564887B2

    公开(公告)日:2009-07-21

    申请号:US11066793

    申请日:2005-02-25

    IPC分类号: H01S5/00 H01S3/08

    摘要: A vertical cavity surface emitting laser (VCSEL) includes independently definable current and optical confinement structures that provide unique forms of drive current and transverse mode confinement, respectively. The optical guide may be formed from an upper distributed Bragg reflector (DBR), as an etched mesa structure and/or as an intracavity optical guide. The current guide may include an ion-implanted region within the upper DBR. A dielectric structure is formed over the upper DBR and surrounds the optical guide.

    摘要翻译: 垂直腔表面发射激光器(VCSEL)包括分别提供独特形式的驱动电流和横向限制的独立可定义的电流和光限制结构。 光导可以由上分布布拉格反射器(DBR)形成,作为蚀刻的台面结构和/或作为腔内光导。 当前引导件可以包括上部DBR内的离子注入区域。 在上DBR上形成电介质结构,并围绕光导。

    InP based long wavelength VCSEL
    3.
    发明授权
    InP based long wavelength VCSEL 失效
    基于InP的长波长VCSEL

    公开(公告)号:US07433381B2

    公开(公告)日:2008-10-07

    申请号:US10606104

    申请日:2003-06-25

    IPC分类号: H01S5/00 H01S3/08

    摘要: A long wavelength vertical cavity surface emitting laser having a substrate, a first mirror situated on the substrate, an active region situated on the first mirror, a second mirror situated on the active region. The first mirror may have several pairs of layers with an oxidized layer in one or more pairs of that mirror. The substrate may include InP and the mirror components may be compatible with the InP. The one or more layers in the first mirror may be oxidized via a trench-like approach or other arrangement.

    摘要翻译: 具有衬底的长波长垂直腔表面发射激光器,位于衬底上的第一反射镜,位于第一反射镜上的有源区,位于有源区上的第二反射镜。 第一反射镜可以具有几对层,其中一对或多对该反射镜具有氧化层。 衬底可以包括InP,并且镜组件可以与InP兼容。 第一反射镜中的一个或多个层可以通过沟槽状方法或其它布置被氧化。

    Tunnel junction utilizing GaPSb, AlGaPSb
    4.
    发明授权
    Tunnel junction utilizing GaPSb, AlGaPSb 失效
    隧道结,利用GaPSb,AlGaPSb

    公开(公告)号:US07085298B2

    公开(公告)日:2006-08-01

    申请号:US10697028

    申请日:2003-10-31

    申请人: Jin K. Kim

    发明人: Jin K. Kim

    IPC分类号: H01S3/04 H01S5/00

    摘要: A vertical cavity surface emitting laser (VCSEL) includes a substrate; a first mirror stack over the substrate; an active region having a plurality of quantum wells over the first mirror stack; a tunnel junction over the active region, a p-layer of the tunnel junction including GaPSb or AlGaPSb; and a second mirror stack over the tunnel junction. The p-layer including GaPSb or AlGaPSb can be used to form a tunnel junction with an n-doped layer of InP or AlInAs, or with a lower bandgap material such as InGaAs, AlInGaAs or InGaAsP. Such tunnel junctions are especially useful for a long wavelength VCSEL.

    摘要翻译: 垂直腔表面发射激光器(VCSEL)包括衬底; 衬底上的第一反射镜堆叠; 有源区,其在所述第一反射镜叠层上具有多个量子阱; 在有源区上的隧道结,包括GaPSb或AlGaPSb的隧道结的p层; 以及在隧道交界处的第二反射镜堆叠。 包括GaPSb或AlGaPSb的p层可以用于与InP或AlInAs的n掺杂层或者具有诸如InGaAs,AlInGaAs或InGaAsP的较低带隙材料形成隧道结。 这种隧道结对于长波长VCSEL特别有用。

    Nonvolatile semiconductor memory
    5.
    发明授权

    公开(公告)号:US5546341A

    公开(公告)日:1996-08-13

    申请号:US441477

    申请日:1995-05-15

    CPC分类号: G11C16/16 G11C16/12

    摘要: A nonvolatile semiconductor memory device comprising an array of cell units, each cell unit including at least one memory transistor which has a floating gate and a control gate, the array being divided into a plurality of memory blocks each having a certain number of cell units. A selected memory block is erased by an erase voltage applied to a semiconductor substrate while unselected memory blocks are prevented from erasing by capacitive coupling of the erase voltage to floated word lines connected to control gates of memory transistors of the unselected memory blocks. In a program mode where a program voltage is applied to a selected word line of a selected memory block and a pass voltage is applied to unselected word lines of the selected memory block, channel regions and source and drain junctions of memory transistors of cell units in the selected memory block are charged to a program inhibition voltage. Channel regions and source and drain junctions of cell units associated with memory transistors programmed to the other binary data are discharged to be programmed while those of cell units associated with nonprogrammed memory transistors are maintained to the program inhibition voltage to prevent programming.

    Gas lighter with ignition safety device
    6.
    发明授权
    Gas lighter with ignition safety device 失效
    燃气打火机带点火安全装置

    公开(公告)号:US5462432A

    公开(公告)日:1995-10-31

    申请号:US261801

    申请日:1994-06-17

    申请人: Jin K. Kim

    发明人: Jin K. Kim

    IPC分类号: F23Q2/16 F23D11/36

    CPC分类号: F23Q2/164

    摘要: An ignition safety device in a gas lighter to reliably prevent ignition of the lighter when a safety button is in a locked position, and to allow ignition of the gas lighter when the safety button is moved from the first locked position to a second unlocked position. A projection of the safety button has an end surface that coacts with an end surface of a projection provided in the upper part of the gas lighter when the safety button is in its locked position. The projection in the upper part of the gas lighter is positioned so as to ensure that the two end surfaces securely contact each other. When the safety button is moved to the unlocked position, the projection of the safety button is not aligned with the projection in the upper part of the lighter and therefore, the ignition button of the lighter can be depressed to ignite the lighter.

    摘要翻译: 一种气体打火机中的点火安全装置,当安全按钮处于锁定位置时可靠地防止打火机点火,并且当安全按钮从第一锁定位置移动到第二解锁位置时允许气体打火机点火。 当安全按钮处于其锁定位置时,安全按钮的突起具有与设置在气体打火机的上部中的突起的端面共同作用的端面。 气体打火机上部的突起被定位成确保两个端面彼此牢固地接触。 当安全按钮移动到解锁位置时,安全按钮的突起不与打火机上部的突起对准,因此可以按下打火机的点火按钮以点燃打火机。

    Ethylene polymer fibrils
    7.
    发明授权
    Ethylene polymer fibrils 失效
    乙烯聚合物原纤维

    公开(公告)号:US4320210A

    公开(公告)日:1982-03-16

    申请号:US215905

    申请日:1980-12-12

    摘要: Improved ethylene polymer fibrils are provided which are characterized in having:(a) a melt temperature of at least about 137.degree. C.,(b) a molecular weight of at least 250,000,(c) at least about 1.2 weight % of polyvinyl alcohol sorbed thereon, and(d) a zero-span breaking length of at least about 25,000.Water-laid sheets prepared from the fibrils have the following minimum factored values:Mullen Burst: 30 psiElmendorf Tear Strength: 300 grams/sheetTensile Strength: 15 lbs/inchElongation at Break: 40%

    摘要翻译: 提供了改进的乙烯聚合物原纤维,其特征在于具有:(a)至少约137℃的熔融温度,(b)至少250,000的分子量,(c)至少约1.2重量%的聚乙烯醇 吸附在其上,(d)零跨度断裂长度至少约为25,000。 从原纤维制备的水性片材具有以下最小因子值:马伦爆裂:30 psi Elmendorf撕裂

    Two-color infrared detector
    8.
    发明授权
    Two-color infrared detector 有权
    双色红外探测器

    公开(公告)号:US08723161B1

    公开(公告)日:2014-05-13

    申请号:US13352098

    申请日:2012-01-17

    IPC分类号: H01L31/00

    CPC分类号: H01L31/1013

    摘要: A two-color detector includes a first absorber layer. The first absorber layer exhibits a first valence band energy characterized by a first valence band energy function. A barrier layer adjoins the first absorber layer at a first interface. The barrier layer exhibits a second valence band energy characterized by a second valence band energy function. The barrier layer also adjoins a second absorber layer at a second interface. The second absorber layer exhibits a third valence band energy characterized by a third valence band energy function. The first and second valence band energy functions are substantially functionally or physically continuous at the first interface and the second and third valence band energy functions are substantially functionally or physically continuous at the second interface.

    摘要翻译: 双色检测器包括第一吸收层。 第一吸收层表现出以第一价带能量函数为特征的第一价带能量。 阻挡层在第一界面处与第一吸收层邻接。 势垒层表现出以第二价带能量函数为特征的第二价带能量。 阻挡层还在第二界面处邻接第二吸收层。 第二吸收层表现出第三价带能量,其特征在于第三价带能量函数。 第一和第二价带能量函数在第一接口处基本上在功能上或物理上连续,并且第二和第三价带能量函数在第二接口处基本上在功能上或物理上连续。

    Strain-compensated infrared photodetector and photodetector array
    10.
    发明授权
    Strain-compensated infrared photodetector and photodetector array 有权
    应变补偿红外光电探测器和光电探测器阵列

    公开(公告)号:US08450773B1

    公开(公告)日:2013-05-28

    申请号:US12836769

    申请日:2010-07-15

    IPC分类号: H01L31/0304

    摘要: A photodetector is disclosed for the detection of infrared light with a long cutoff wavelength in the range of about 4.5-10 microns. The photodetector, which can be formed on a semiconductor substrate as an nBn device, has a light absorbing region which includes InAsSb light-absorbing layers and tensile-strained layers interspersed between the InAsSb light-absorbing layers. The tensile-strained layers can be formed from GaAs, InAs, InGaAs or a combination of these III-V compound semiconductor materials. A barrier layer in the photodetector can be formed from AlAsSb or AlGaAsSb; and a contact layer in the photodetector can be formed from InAs, GaSb or InAsSb. The photodetector is useful as an individual device, or to form a focal plane array.

    摘要翻译: 公开了用于检测具有约4.5-10微米范围内的长截止波长的红外光的光电检测器。 可以形成在作为nBn器件的半导体衬底上的光电检测器具有包含散射在InAsSb光吸收层之间的InAsSb光吸收层和拉伸应变层的光吸收区域。 拉伸应变层可以由GaAs,InAs,InGaAs或这些III-V族化合物半导体材料的组合形成。 光检测器中的阻挡层可以由AlAsSb或AlGaAsSb形成; 并且光电检测器中的接触层可以由InAs,GaSb或InAsSb形成。 光电检测器可用作单个设备,或用于形成焦平面阵列。