Method of depositing a thick titanium nitride film
    2.
    发明授权
    Method of depositing a thick titanium nitride film 有权
    沉积厚氮化钛膜的方法

    公开(公告)号:US06548402B2

    公开(公告)日:2003-04-15

    申请号:US09330696

    申请日:1999-06-11

    IPC分类号: C23C1634

    摘要: A method of forming a titanium nitride (TiN) layer using a reaction between ammonia (NH3) and titanium tetrachloride (TiCl4). In one embodiment, an NH3:TiCl4 ratio of about 8.5 is used to deposit a TiN layer at a temperature of about 500° C. at a pressure of about 20 torr. In another embodiment, a composite TiN layer is formed by alternately depositing TiN layers of different thicknesses, using process conditions having different NH3:TiCl4 ratios. In one preferred embodiment, a TiN layer of less than about 20 Å is formed at an NH3:TiCl4 ratio of about 85, followed by a deposition of a thicker TiN layer at an NH3:TiCl4 ratio of about 8.5. By repeating the alternate film deposition using the two different process conditions, a composite TiN layer is formed. This composite TiN layer has an improved overall step coverage and reduced stress, compared to a standard TiN process, and is suitable for small geometry plug fill applications.

    摘要翻译: 使用氨(NH 3)与四氯化钛(TiCl 4)之间的反应形成氮化钛(TiN)层的方法。 在一个实施方案中,使用约8.5的NH 3 :TiCl 4比率在约20托的压力下在约500℃的温度下沉积TiN层。 在另一个实施例中,通过使用具有不同NH 3 :TiCl 4比率的工艺条件交替沉积不同厚度的TiN层来形成复合TiN层。 在一个优选的实施方案中,以大约85的NH 3 :TiCl 4比例形成小于约的TiN层,然后以约8.5的NH 3 :TiCl 4比率沉积较厚的TiN层。 通过使用两种不同的工艺条件重复替代膜沉积,形成复合TiN层。 与标准TiN工艺相比,该复合TiN层具有改进的整体台阶覆盖和减小的应力,适用于小型几何填塞应用。

    Cold trap assembly
    5.
    发明授权
    Cold trap assembly 有权
    冷阱装配

    公开(公告)号:US06517592B2

    公开(公告)日:2003-02-11

    申请号:US09740120

    申请日:2000-12-19

    IPC分类号: B01D4508

    摘要: A temperature-controlled exhaust assembly with cold trap capability. One embodiment of the exhaust assembly comprises a multi-heater design which allows for independent multi-zone closed-loop temperature control. Another embodiment comprises a compact multi-valve uni-body design incorporating a single heater for simplified closed-loop temperature control. The cold trap incorporates a heater for temperature control at the inlet of the trap to minimize undesirable deposits. One embodiment also comprises a multi-stage cold trap and a particle trap. As a removable unit, this cold trap provides additional safety in the handling and disposal of the adsorbed condensables.

    摘要翻译: 具有冷阱能力的温度控制排气组件。 排气组件的一个实施例包括允许独立的多区域闭环温度控制的多加热器设计。 另一个实施例包括紧凑的多阀单体设计,其包括用于简化闭环温度控制的单个加热器。 冷阱包含一个加热器,用于在陷阱入口进行温度控制,以尽量减少不必要的沉积物。 一个实施例还包括多级冷阱和颗粒捕集器。 作为可拆卸单元,该冷阱在吸附的可冷凝物的处理和处理中提供了额外的安全性。

    Method for manufacturing a Schottky-type rectifier having controllable
barrier height
    7.
    发明授权
    Method for manufacturing a Schottky-type rectifier having controllable barrier height 失效
    制造具有可控壁垒的肖特基型整流器的方法

    公开(公告)号:US4946803A

    公开(公告)日:1990-08-07

    申请号:US282232

    申请日:1988-12-08

    摘要: A Schottky-type diode is fabricated by a process that enables the diodes conductor-to-semiconductor barrier height .phi..sub.B to be controlled by adjusting the thickness of a metal silicide layer (22) which forms a rectifying junction (20) with an N-type semiconductor (24). In fabricating one version of the diode, a metallic layer (70) consisting of two or more metals such as platinum and nickel is deposited on an N-type silicon semiconductor (68) and heated to create a metal silicide layer (72) consisting of a lower layer (62) and an upper layer (74) of different average composition. A portion of the upper layer is then removed, allowing .phi..sub.B to be adjusted suitably.

    摘要翻译: 肖特基型二极管是通过一种工艺来制造的,该工艺能够通过调节形成整流结(20)的金属硅化物层(22)的厚度来控制二极管导体到半导体势垒高度phi B, 型半导体(24)。 在制造二极管的一个版本中,将由两种或更多种金属(例如铂和镍)组成的金属层(70)沉积在N型硅半导体(68)上并加热以形成金属硅化物层(72),其由 下层(62)和不同平均组成的上层(74)。 然后去除上层的一部分,允许适当地调节phi B.

    Integrated temperature controlled exhaust and cold trap assembly
    9.
    发明授权
    Integrated temperature controlled exhaust and cold trap assembly 有权
    集成温度控制排气和冷阱组件

    公开(公告)号:US06206971B1

    公开(公告)日:2001-03-27

    申请号:US09281998

    申请日:1999-03-29

    IPC分类号: C23C1600

    摘要: A temperature-controlled exhaust assembly with cold trap capability. One embodiment of the exhaust assembly comprises a multi-heater design which allows for independent multi-zone closed-loop temperature control. Another embodiment comprises a compact multi-valve uni-body design incorporating a single heater for simplified closed-loop temperature control. The cold trap incorporates a heater for temperature control at the inlet of the trap to minimize undesirable deposits. One embodiment also comprises a multi-stage cold trap and a particle trap. As a removable unit, this cold trap provides additional safety in the handling and disposal of the adsorbed condensables.

    摘要翻译: 具有冷阱能力的温度控制排气组件。 排气组件的一个实施例包括允许独立的多区域闭环温度控制的多加热器设计。 另一个实施例包括紧凑的多阀单体设计,其包括用于简化闭环温度控制的单个加热器。 冷阱包含一个加热器,用于在陷阱入口进行温度控制,以尽量减少不必要的沉积物。 一个实施例还包括多级冷阱和颗粒捕集器。 作为可拆卸单元,该冷阱在吸附的可冷凝物的处理和处理中提供了额外的安全性。