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    • 1. 发明授权
    • Resonant chamber applicator for remote plasma source
    • 用于远程等离子体源的谐振室施加器
    • US06603269B1
    • 2003-08-05
    • US09593586
    • 2000-06-13
    • Be Van VoSalvador P. UmotoySon N. TrinhLawrence Chung-Lai LeiSergio EdelsteinAvi TepmanChien-Teh KaoKenneth Tsai
    • Be Van VoSalvador P. UmotoySon N. TrinhLawrence Chung-Lai LeiSergio EdelsteinAvi TepmanChien-Teh KaoKenneth Tsai
    • C23C1600
    • H01J37/32192
    • An improved plasma applicator for remotely generating a plasma for use in semiconductor manufacturing is provided. In one embodiment, a plasma applicator is comprised of a chamber assembly, a removable waveguide adapter and a circular clamp which secures the adapter to the chamber assembly. The chamber assembly includes an aperture plate, a microwave transparent window, a chamber body and a microwave sensor which is mounted on the chamber body. The chamber body has a proximate end opening adapted to admit microwave energy into the cavity and a distal end disposed generally on the opposite side of the cavity from the proximate end opening. The chamber body further has a gas outlet port adapted to permit the flow of an excited gas out of the cavity and a gas inlet port adapted to admit a precursor gas into the cavity. The gas inlet port has a center axis which is disposed between the proximate end opening of the chamber body and the midpoint between the proximate end opening and the distal end of the body.
    • 提供了用于远程产生用于半导体制造的等离子体的改进的等离子体施加器。 在一个实施例中,等离子体施加器由腔室组件,可移除波导适配器和将适配器固定到腔室组件的圆形夹具构成。 腔室组件包括孔板,微波透明窗,室主体和安装在腔体上的微波传感器。 室主体具有适于将微波能量引入空腔中的近端开口,以及大致位于与近端开口相反的空腔相对侧的远端。 腔体还具有气体出口端口,其适于允许将激发气体流出空腔,气体入口端口适于将前体气体引入空腔。 气体入口具有中心轴线,该中心轴线设置在腔室主体的近端开口和本体的近端开口和远端之间的中点之间。
    • 4. 发明授权
    • Heater with shadow ring and purge above wafer surface
    • 加热器带有阴影环并在晶片表面上方吹扫
    • US5888304A
    • 1999-03-30
    • US626789
    • 1996-04-02
    • Salvador P. UmotoyAlan F. MorrisonKarl A. LittauRichard A. MarshLawrence Chung-Lai LeiDale DuBois
    • Salvador P. UmotoyAlan F. MorrisonKarl A. LittauRichard A. MarshLawrence Chung-Lai LeiDale DuBois
    • C23C16/02C23C16/44C23C16/455C23C16/458C23C16/46H01L21/205H01L21/285C23C16/00
    • C23C16/45521C23C16/4585C23C16/46
    • This invention provides a method and apparatus for supporting a wafer in a processing chamber, where the wafer is supported and heated from below via a heater pedestal having a diameter larger than that of the wafer. A process fluid flowing downward toward the top of the wafer is inhibited from depositing near the wafer edge by a shadow ring. The shadow ring, which is placed over but does not contact the wafer, physically masks an annular strip of the wafer near its edge. The shadow ring inhibits deposition of process fluides on the wafer in two distinct ways. First, the shadow ring physically obstructs process gas, flowing downward from above the wafer, from depositing on the masked portion of the wafer. Second, the shadow ring is used to direct a flow of a purge gas to inhibit process gas from seeping under the shadow ring and depositing near the wafer edge. A purge gas manifold is defined by a cylindrical annulus located concentrically below the shadow ring and circumscribing the heater pedestal. A purge gap between the wafer and the shadow ring forms the outlet of the purge gas manifold. The purge gas flows out of the purge gap, inhibiting the process gas from entering the purge gap, and thus further inhibiting deposition on the masked portion of the wafer.
    • 本发明提供了一种用于在处理室中支撑晶片的方法和装置,其中通过直径大于晶片直径的加热器基座从下方支撑晶片并从其下被加热。 向晶片顶部向下流动的工艺流体被阴影环抑制在晶片边缘附近沉积。 放置在但不接触晶片的阴影环在其边缘附近物理屏蔽晶片的环形条。 阴影环以两种截然不同的方式阻止了工艺流程在晶片上沉积。 首先,阴影环物理地阻挡从晶片上方向下流动的工艺气体沉积在晶片的掩蔽部分上。 第二,阴影环用于引导吹扫气体的流动,以阻止处理气体在阴影环下渗出并沉积在晶片边缘附近。 吹扫气体歧管由同心地位于阴影环下方并围绕加热器基座的圆柱形环限定。 晶片和阴影环之间的吹扫间隙形成吹扫气体歧管的出口。 净化气体流出吹扫间隙,阻止处理气体进入吹扫间隙,从而进一步抑制沉积在晶片的掩蔽部分上。
    • 7. 发明授权
    • High temperature chemical vapor deposition chamber
    • 高温化学气相沉积室
    • US06364954B2
    • 2002-04-02
    • US09211998
    • 1998-12-14
    • Salvador P. UmotoySteve H. ChiaoAnh N. NguyenBe V. VoJoel HustonJames J. ChenLawrence Chung-Lai Lei
    • Salvador P. UmotoySteve H. ChiaoAnh N. NguyenBe V. VoJoel HustonJames J. ChenLawrence Chung-Lai Lei
    • C23C1600
    • C23C16/45565C23C16/4401C23C16/4405C23C16/4412C23C16/45514C23C16/45574C23C16/4584C23C16/5096
    • An apparatus for wafer processing, which comprises a chamber body and a heated liner which are thermally isolated from each other by isolating pins. During wafer processing, e.g., deposition of titanium nitride film by thermal reaction between titanium tetrachloride and ammonia, a wafer substrate is heated to a reaction temperature in the range of 600-700° C. by a heated support pedestal. The chamber liner and the interior chamber walls are maintained at a temperature between 150-250° C. to prevent deposition of undesirable by-products inside the chamber. This facilitates the chamber cleaning procedure, which can be performed using an in-situ chlorine-based process. The excellent thermal isolation between the heated liner and the chamber body allows the chamber exterior to be maintained at a safe operating temperature of 60-65° C. A heated exhaust assembly is also used in conjunction with the process chamber to remove exhaust gases and reaction by-products. External heaters are used to maintain the exhaust assembly at a temperature of about 150-200° C. to minimize undesirable deposits on the interior surfaces of the exhaust assembly.
    • 一种用于晶片处理的装置,其包括通过隔离销彼此热隔离的室主体和加热衬套。 在晶片加工期间,例如通过四氯化钛和氨之间的热反应沉积氮化钛膜,通过加热的支撑基座将晶片基板加热至600-700℃范围内的反应温度。 腔室衬里和内部室壁保持在150-250℃之间的温度,以防止在室内沉积不期望的副产物。 这有助于室清洁程序,其可以使用原位氯基方法进行。 加热的衬套和腔体之间的良好的隔热能使室外保持在60-65℃的安全工作温度。加热排气组件还与处理室结合使用以除去废气和反应 副产品。 使用外部加热器将排气组件保持在约150-200℃的温度下,以使排气组件的内表面上的不期望的沉积物最小化。