SEMICONDUCTOR DEVICE AND A METHOD FOR FORMING A SEMICONDUCTOR DEVICE

    公开(公告)号:US20170250112A1

    公开(公告)日:2017-08-31

    申请号:US15055246

    申请日:2016-02-26

    发明人: Stefan Barzen

    摘要: A method for forming a semiconductor device comprises forming an insulation trench structure comprising insulation material extending into the semiconductor substrate from a surface of the semiconductor substrate. The insulation trench structure laterally surrounds a portion of the semiconductor substrate. The method further comprises modifying the laterally surrounded portion of the semiconductor substrate to form a vertical electrically conductive structure comprising an alloy material. The alloy material is an alloy of the semiconductor substrate material and at least one metal.

    Ohmic metal contact and channel protection in GaN devices using an encapsulation layer
    5.
    发明申请
    Ohmic metal contact and channel protection in GaN devices using an encapsulation layer 有权
    使用封装层的GaN器件中的欧姆金属接触和沟道保护

    公开(公告)号:US20040029330A1

    公开(公告)日:2004-02-12

    申请号:US10634348

    申请日:2003-08-04

    IPC分类号: H01L021/338

    摘要: A method for fabricating a semiconductor device which protects the ohmic metal contacts and the channel of the device during subsequent high temperature processing steps is explained. An encapsulation layer is used to cover the channel and ohmic metal contacts. The present invention provides a substrate on which a plurality of semiconductor layers are deposited. The semiconductor layers act as the channel of the device. The semiconductor layers are covered with an encapsulation layer. A portion of the encapsulation layer and the plurality of semiconductor layers are removed, wherein ohmic metal contacts are deposited. The ohmic metal contacts are then annealed to help reduce their resistance. The encapsulation layer ensures that the ohmic metal contacts do not migrate during the annealing step and that the channel is not harmed by the high temperatures needed during the annealing step.

    摘要翻译: 说明了在随后的高温处理步骤中制造保护欧姆金属触点和器件通道的半导体器件的方法。 封装层用于覆盖通道和欧姆金属触点。 本发明提供一种其上沉积有多个半导体层的衬底。 半导体层用作器件的通道。 半导体层被封装层覆盖。 去除封装层和多个半导体层的一部分,其中沉积欧姆金属接触。 然后将欧姆金属触点退火以帮助降低它们的电阻。 封装层确保在退火步骤期间欧姆金属接触不迁移,并且该通道不会受退火步骤期间所需的高温的损害。

    Energy beam induced layer disordering (EBILD)
    7.
    发明授权
    Energy beam induced layer disordering (EBILD) 失效
    能量束诱导层紊乱(EBILD)

    公开(公告)号:US4771010A

    公开(公告)日:1988-09-13

    申请号:US933666

    申请日:1986-11-21

    摘要: A novel energy beam induced layer disordering (EBILD) process is used to (a) locally melt in a scanned pattern regions of a solid state semiconductor heterostructure to produce an alloy of intermediate composition having different optical properties and/or (b) incorporating significantly large amounts of an impurity, present in an encapsulation surface layer of a solid state semiconductor heterostructure, into regions of the heterostructure via absorption of the impurity into liquid alloy melt to form regions having different optical and/or electrical properties and (c) thereafter optionally applying IID to enlarge or extend the disordered/as-grown boundaries of the initially melted region. As a direct write analogue to surface initiated impurity induced disordering (IID), EBILD is a flexible and viable process with high importance for continuous reproducibility and high yield in the fabrication of optoelectronic devices and thin film electronic and optoelectronic circuitry. Characterized in its simplest terms, the method of impurity incorporation contemplated by this invention provides such incorporation from a solid phase impurity source using an energy beam liquid phase technique to bring about absorption of the impurity with underlying constituents in a desired pattern to produce regions that may be disordered and possess different electrical properties or optical properties or both compared to regions not part of the scanned pattern.

    摘要翻译: 使用新颖的能量束诱导层无序(EBILD)工艺来(a)在固态半导体异质结构的扫描图案区域中局部熔化,以产生具有不同光学性质的中间组分的合金和/或(b)结合显着大 存在于固态半导体异质结构的封装表面层中的杂质的量通过将杂质吸收到液态合金熔体中而形成具有不同光学和/或电特性的区域,并且(c)随后任选应用 IID以扩大或扩展初始熔化区域的无序/生长边界。 作为直接写入类似于表面引发的杂质诱导无序(IID)的方法,EBILD是一种灵活而可行的方法,对于光电子器件和薄膜电子和光电子电路的连续重现性和高产率具有重要意义。 特征在于其最简单的术语,本发明考虑的杂质掺入方法使用能量束液相技术从固相杂质源提供这种掺入,以使所需杂质与所需图案的底层组分吸收,从而产生可能 无序且具有不同的电性能或光学性质,或者与不是扫描图案的一部分的区域相比。

    Process for the thermo-migration of liquid phases
    9.
    发明授权
    Process for the thermo-migration of liquid phases 失效
    液相热迁移过程

    公开(公告)号:US4519850A

    公开(公告)日:1985-05-28

    申请号:US524327

    申请日:1983-08-18

    申请人: Petra Kluge-Weiss

    发明人: Petra Kluge-Weiss

    摘要: In a process for the thermo-migration of liquid phases in a temperature gradient, which process starts from a metal coating (2) on a semiconducting substrate (1), the metal coating (2) is applied to a plane substrate surface (11), the temperature gradient is produced, in vacuo, by means of two flat faces (5, 6), which are parallel and can be heated uniformly, and is reversed by lowering the temperature of the warmer face and, at the same time, raising the temperature of the cooler face. The smooth temperature distribution leads to a reduction in the number of process steps, while at the same time yielding good results.

    摘要翻译: 在温度梯度的液相热迁移过程中,该过程从半导体衬底(1)上的金属涂层(2)开始,将金属涂层(2)施加到平面衬底表面(11)上, ,在真空中通过两个平面(5,6)产生温度梯度,它们是平行的并且可被均匀地加热,并且通过降低较暖的面部的温度来反转,并且同时升高 冷却器表面的温度。 平滑的温度分布导致处理步骤数量的减少,同时产生良好的结果。

    Temperature gradient zone melting process employing a buffer layer
    10.
    发明授权
    Temperature gradient zone melting process employing a buffer layer 失效
    采用缓冲层的温度梯度区熔化过程

    公开(公告)号:US4398974A

    公开(公告)日:1983-08-16

    申请号:US366900

    申请日:1982-04-09

    CPC分类号: C30B13/02 H01L21/24

    摘要: A process is provided for fabricating a semiconductor device by thermal gradient zone melting, whereby metal-rich droplets such as aluminum migrate through a semiconductor wafer such as silicon to create conductive paths. One surface of the wafer in provided with a buffer layer thereon, which is placed directly on a heating surface. The buffer layer terminates the migration of the droplets to prevent alloying of the droplets with the heating surface.

    摘要翻译: 提供了一种用于通过热梯度区熔化制造半导体器件的方法,由此富含金属的液滴(例如铝)迁移穿过诸如硅的半导体晶片以产生导电路径。 晶片的一个表面在其上设置有缓冲层,其直接放置在加热表面上。 缓冲层终止液滴的迁移,以防止液滴与加热表面的合金化。