UV activation of NH3 for III-N deposition
    52.
    发明申请
    UV activation of NH3 for III-N deposition 审中-公开
    NH3用于III-N沉积的UV活化

    公开(公告)号:US20070256635A1

    公开(公告)日:2007-11-08

    申请号:US11416333

    申请日:2006-05-02

    IPC分类号: C23C16/00

    摘要: Systems are disclosed for fabricating compound nitride semiconductor structures. The systems include a housing defining a processing chamber, a substrate holder disposed within the processing chamber, an NH3 source, a group-III precursor source, an ultraviolet source, and a CVD showerhead disposed over the substrate holder. The showerhead has a first plenum fluidicly coupled with the NH3 source, with the first plenum having channels fluidicly coupled with an interior of the processing chamber. The first plenum is optically coupled with the ultraviolet light source at an ultraviolet wavelength to receive light transmitted by the ultraviolet light source within the first plenum. The CVD showerhead also has a second plenum fluidicly coupled with the group-III precursor source, with the second plenum having channels fluidicly coupled with the interior of the processing chamber.

    摘要翻译: 公开了用于制造复合氮化物半导体结构的系统。 这些系统包括限定处理室的壳体,设置在处理室内的衬底保持器,NH 3源,III族前体源,紫外线源和设置在衬底上的CVD喷头 持有人 喷头具有与NH 3源流体耦合的第一增压室,第一增压室具有与处理室的内部流体耦合的通道。 第一增压室与紫外光源以紫外线波长光学耦合,以接收由第一增压室内的紫外光源透射的光。 CVD喷头还具有与III族前体源流体耦合的第二增压室,第二增压室具有与处理室内部流体耦合的通道。

    PLASMA-ASSISTED MOCVD FABRICATION OF P-TYPE GROUP III-NITRIDE MATERIALS
    55.
    发明申请
    PLASMA-ASSISTED MOCVD FABRICATION OF P-TYPE GROUP III-NITRIDE MATERIALS 审中-公开
    P型III型氮化物材料的等离子体辅助MOCVD制造

    公开(公告)号:US20120258580A1

    公开(公告)日:2012-10-11

    申请号:US13413009

    申请日:2012-03-06

    摘要: The plasma-assisted metal-organic chemical vapor deposition (MOCVD) fabrication of a p-type group III-nitride material is described. For example, a method of fabricating a p-type group III-nitride material includes generating a nitrogen-based plasma. A nitrogen-containing species from the nitrogen-based plasma is reacted with a group III precursor and a p-type dopant precursor in a metal-organic chemical vapor deposition (MOCVD) chamber. A group III-nitride layer including p-type dopants is then formed above a substrate.

    摘要翻译: 描述了p型III族氮化物材料的等离子体辅助金属 - 有机化学气相沉积(MOCVD)制造。 例如,制造p型III族氮化物材料的方法包括生成氮基等离子体。 来自氮基等离子体的含氮物质与金属有机化学气相沉积(MOCVD)室中的III族前体和p型掺杂剂前体反应。 然后在衬底上形成包括p型掺杂剂的III族氮化物层。

    GROWTH OF III-V LED STACKS USING NANO MASKS
    56.
    发明申请
    GROWTH OF III-V LED STACKS USING NANO MASKS 审中-公开
    使用NANO MASKS的III-V LED堆叠的增长

    公开(公告)号:US20120235115A1

    公开(公告)日:2012-09-20

    申请号:US13355255

    申请日:2012-01-20

    摘要: Methods, semiconductor material stacks and equipment for manufacture of light emitting diodes (LEDs) with improve crystal quality. A growth stopper is deposited between nuclei for a group III-V material, such as GaN, to form a nano mask. The group III-V material is laterally overgrown from a region of the nuclei not covered by the nano mask to form a continuous material layer with reduced dislocation density in preparation for subsequent growth of n-type and p-type layers of the LED. The lateral overgrowth from the nuclei may further recover the surface morphology of the buffer layer despite the presence of the nano mask. Presence of the growth stopper may further result in void formation on a substrate side of an LED stack to improve light extraction efficiency.

    摘要翻译: 方法,用于制造具有改善晶体质量的发光二极管(LED)的半导体材料堆叠和设备。 在诸如GaN的III-V族材料的核之间沉积生长塞,以形成纳米掩模。 III-V族材料从未被纳米掩模覆盖的核的区域横向长满,以形成具有降低的位错密度的连续材料层,以准备LED的n型和p型层的随后生长。 即使存在纳米掩模,来自核的侧向过度生长也可进一步恢复缓冲层的表面形态。 生长停止剂的存在可能进一步导致在LED堆叠的衬底侧上的空隙形成以提高光提取效率。

    CLOSED LOOP MOCVD DEPOSITION CONTROL
    57.
    发明申请
    CLOSED LOOP MOCVD DEPOSITION CONTROL 审中-公开
    闭环MOCVD沉积控制

    公开(公告)号:US20110308453A1

    公开(公告)日:2011-12-22

    申请号:US12812222

    申请日:2009-01-23

    IPC分类号: B05C11/00

    摘要: A method and apparatus are provided for monitoring and controlling substrate processing parameters for a cluster tool that utilizes chemical vapor deposition and/or hydride vapor phase epitaxial (HVPE) deposition. In one embodiment, a metal organic chemical vapor deposition (MOCVD) process is used to deposit a Group III-nitride film on a plurality of substrates within a processing chamber. A closed-loop control system performs in-situ monitoring of the Group III-nitride film growth rate and adjusts film growth parameters as required to maintain a target growth rate. In another embodiment, a closed-loop control system performs in-situ monitoring of film growth parameters for multiple processing chambers for one or more film deposition systems.

    摘要翻译: 提供了一种用于监测和控制利用化学气相沉积和/或氢化物气相外延(HVPE)沉积的簇工具的衬底处理参数的方法和装置。 在一个实施例中,使用金属有机化学气相沉积(MOCVD)工艺将III族氮化物膜沉积在处理室内的多个衬底上。 闭环控制系统对III族氮化物膜生长速率进行原位监测,并根据需要调整膜生长参数以维持目标生长速率。 在另一个实施例中,闭环控制系统执行用于一个或多个成膜系统的多个处理室的膜生长参数的原位监测。

    Stacked-substrate processes for production of nitride semiconductor structures
    58.
    发明授权
    Stacked-substrate processes for production of nitride semiconductor structures 失效
    用于生产氮化物半导体结构的堆叠衬底工艺

    公开(公告)号:US07575982B2

    公开(公告)日:2009-08-18

    申请号:US11404525

    申请日:2006-04-14

    IPC分类号: H01L21/30

    摘要: Methods are provided of fabricating compound nitride semiconductor structures. A group-III precursor and a nitrogen precursor are flowed into a processing chamber to deposit a first layer over a surface of a first substrate with a thermal chemical-vapor-deposition process. A second layer is deposited over a surface of a second substrate with the thermal chemical-vapor-deposition process using the first group-III precursor and the first nitrogen precursor. The first and second substrates are different outer substrates of a plurality of stacked substrates disposed within the processing chamber as a stack so that the first and second layers are deposited on opposite sides of the stack. Deposition of the first layer and deposition of the second layer are performed simultaneously.

    摘要翻译: 提供了制造复合氮化物半导体结构的方法。 将III族前体和氮前体流入处理室中,以通过热化学气相沉积工艺在第一基板的表面上沉积第一层。 使用第一组III前体和第一氮前体,通过热化学气相沉积工艺将第二层沉积在第二衬底的表面上。 第一和第二基板是作为堆叠设置在处理室内的多个堆叠基板的不同的外部基板,使得第一和第二层沉积在堆叠的相对侧上。 同时进行第一层的沉积和第二层的沉积。