会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Fabricating a semiconductor device with strained Si.sub.1-x Ge.sub.x
layer
    • 制造具有应变Si1-xGex层的半导体器件
    • US5256550A
    • 1993-10-26
    • US715054
    • 1991-06-12
    • Stephen LadermanMartin ScottTheodore I. KaminsJudy L. HoytClifford A. KingJames F. GibbonsDavid B. Noble
    • Stephen LadermanMartin ScottTheodore I. KaminsJudy L. HoytClifford A. KingJames F. GibbonsDavid B. Noble
    • H01L21/20H01L21/205
    • H01L21/0262H01L21/02381H01L21/0245H01L21/02532H01L21/02631Y10S148/015Y10S438/902Y10S438/938
    • The present invention comprises a method of fabricating devices and circuits employing at least one heteroepitaxial layer under strain. The thickness of the heteroepitaxial layer is more than two times the calculated equilibrium critical thickness for an uncapped heteroepitaxial layer upon a crystalline substrate, based on previously known equilibrium theory for the uncapped layer. Subsequent to growth of the heteroepitaxial layer, the structure is processed at temperatures higher than the growth temperature of the heteroepitaxial layer.The strained heteroepitaxial layer (second layer) is epitaxially grown upon the surface of a first, underlaying crystalline layer, creating a heterojunction. Subsequently a third crystalline layer is deposited or grown upon the major exposed surface of the second, strained heteroepitaxial layer. The preferred manner of growth of the third crystalline layer is epitaxial growth. The composition of the third crystalline layer must be such that upon deposition or growth, the third layer substantially continuously binds to the heteroepitaxial structure of the second layer. Subsequent to growth of the at least three layer structure, the structure is processed at temperatures in excess of the growth temperature of the second heteroepitaxial layer. Presence of the third crystalline layer prevents the generation of a substantial amount of misfit dislocations between the first crystalline layer substrate and the second heteroepitaxial layer.
    • 本发明包括一种在应变下使用至少一个异质外延层的器件和电路的制造方法。 基于先前已知的无盖层的平衡理论,异质外延层的厚度超过了在结晶衬底上的无盖异质外延层的计算的平衡临界厚度的两倍。 在异质外延层的生长之后,在高于异质外延层的生长温度的温度下处理该结构。 应变异质外延层(第二层)在第一底层晶体层的表面上外延生长,产生异质结。 随后,在第二应变异质外延层的主要暴露表面上沉积或生长第三晶体层。 第三晶体层的优选生长方式是外延生长。 第三结晶层的组成必须使得在沉积或生长时,第三层基本上连续地结合到第二层的异质外延结构。 在至少三层结构生长之后,在超过第二异质外延层的生长温度的温度下处理该结构。 第三结晶层的存在防止在第一晶体层衬底和第二异质外延层之间产生大量的失配位错。
    • 3. 发明申请
    • Low-noise semiconductor photodetectors
    • 低噪声半导体光电探测器
    • US20080128849A1
    • 2008-06-05
    • US11978276
    • 2007-10-29
    • Conor S. RaffertyClifford A. King
    • Conor S. RaffertyClifford A. King
    • H01L31/0352H01L21/331
    • H01L31/0352H01L27/14649H01L31/03529H01L31/101H01L2924/0002Y02E10/50H01L2924/00
    • A photodetector is formed from a body of semiconductor material substantially surrounded by dielectric surfaces. A passivation process is applied to at least one surface to reduce the rate of carrier generation and recombination on that surface. Photocurrent is read out from at least one electrical contact, which is formed on a doped region whose surface lies entirely on a passivated surface. Unwanted leakage current from un-passivated surfaces is reduced through one of the following methods. (a) The un-passivated surface is separated from the photo-collecting contact by at least two junctions (b) The un-passivated surface is doped to a very high level, at least equal to the conduction band or valence band density of states of the semiconductor (c) An accumulation or inversion layer is formed on the un-passivated surface by the application of an electric field. Electrical contacts are made to all doped regions, and bias is applied so that a reverse bias is maintained across all junctions.
    • 光电检测器由基本上被电介质表面包围的半导体材料体形成。 钝化过程被应用于至少一个表面以降低载体在该表面上的产生和重组的速率。 从至少一个电触点读出光电流,该电触点形成在其表面完全位于钝化表面上的掺杂区域上。 通过以下方法之一减少未钝化表面的不需要的泄漏电流。 (a)未钝化的表面通过至少两个结与光电收集接触分离(b)未钝化的表面被掺杂到非常高的水平,至少等于状态的导带或价带密度 的半导体(c)通过施加电场在未钝化的表面上形成堆积或反转层。 对所有掺杂区域进行电触点,并且施加偏压,使得跨所有接合部保持反向偏压。
    • 4. 发明授权
    • Silicon germanium heterostructure bipolar transistor with indium doped
base
    • 硅锗异质结双极晶体管掺杂铟基
    • US6087683A
    • 2000-07-11
    • US127373
    • 1998-07-31
    • Clifford A. KingIsik C. Kizilyalli
    • Clifford A. KingIsik C. Kizilyalli
    • H01L29/73H01L21/331H01L29/165H01L29/167H01L29/737H05B35/00
    • H01L29/167H01L29/7378
    • The present invention provides, in one embodiment, a method of fabricating a heterostructure bipolar transistor. This particular embodiment comprises forming a n-type doped region in a semiconductor substrate to form a collector, epitaxially forming a base on the collector, epitaxially doping the base with indium while forming the base, and forming an emitter on the base. The base is epitaxially formed, and at the same time the base is doped with indium. In other words, the indium is epitaxially incorporated within the base as the base is being formed. In addition to the indium, the base may also be epitaxially doped with boron. Since, indium is incorporated into the base with the same epitaxial process used to form the base, the damage typically associated with conventional implantation processes are not present, and thus, the high annealing temperatures to repair the damage are not required. The base can be doped and formed at the same time; thereby, saving processing time.
    • 本发明在一个实施例中提供了制造异质结双极晶体管的方法。 该特定实施例包括在半导体衬底中形成n型掺杂区以形成集电极,在集电极上外延形成基极,在形成基底的同时,用铟外延掺杂铟,并在基底上形成发射极。 基底是外延形成的,同时基底上掺杂有铟。 换句话说,当正在形成基底时,铟外延结合在基底内。 除了铟之外,碱也可以外延掺杂硼。 由于铟以与形成基底相同的外延工艺结合到基底中,所以不存在通常与常规注入工艺相关的损伤,因此不需要用于修复损伤的高退火温度。 碱可以同时掺杂并形成; 从而节省处理时间。