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    • 2. 发明授权
    • Method for improving MOS mobility
    • 提高MOS迁移率的方法
    • US06921704B1
    • 2005-07-26
    • US10700557
    • 2003-11-05
    • David WuAkif SultanBin Yu
    • David WuAkif SultanBin Yu
    • H01L21/762H01L21/764H01L21/8234H01L21/8238H01L21/76
    • H01L21/764H01L21/76224H01L21/823481H01L21/823878
    • A method of forming a silicon-on-insulator semiconductor device including providing a substrate and forming a trench in the substrate, wherein the trench includes opposing side walls extending upwardly from a base of the trench. The method also includes depositing at least two insulating layers into the trench to form a shallow trench isolation structure, wherein an innermost of the insulating layers substantially conforms to the base and the two side walls of the trench and an outermost of the insulating layers spans the side walls of the trench so that a gap is formed between the insulating layers in the trench. The gap creates compressive forces within the shallow trench isolation structure, which in turn creates tensile stress within the surrounding substrate to enhance mobility of the device.
    • 一种形成绝缘体上半导体器件的方法,包括提供衬底并在衬底中形成沟槽,其中沟槽包括从沟槽的基底向上延伸的相对的侧壁。 该方法还包括将至少两个绝缘层沉积到沟槽中以形成浅沟槽隔离结构,其中绝缘层的最内层基本上与基底一致并且沟槽的两个侧壁和绝缘层的最外层横跨 沟槽的侧壁,使得在沟槽中的绝缘层之间形成间隙。 间隙在浅沟槽隔离结构内产生压缩力,这反过来在周围的衬底内产生拉伸应力,以增强器件的移动性。
    • 3. 发明授权
    • Formation of ultra-shallow depth source/drain extensions for MOS transistors
    • 形成MOS晶体管的超浅深度源极/漏极延伸
    • US06727136B1
    • 2004-04-27
    • US10273291
    • 2002-10-18
    • James F. BullerDerick J. WristersDavid WuAkif Sultan
    • James F. BullerDerick J. WristersDavid WuAkif Sultan
    • H01L21336
    • H01L29/6659H01L21/823418H01L21/823814H01L29/1054H01L29/7833
    • A method of manufacturing a semiconductor device, comprising sequential steps of: (a) providing a semiconductor substrate including a pre-selected thickness strained lattice layer of a first semiconductor material at an upper surface thereof and an underlying layer of a second semiconductor material; and (b) introducing a dopant-containing species of one conductivity type into at least one pre-selected portion of the strained lattice layer of first semiconductor material to form a dopant-containing region therein with a junction at a depth substantially equal to the pre-selected thickness, wherein the second semiconductor material of the underlying layer inhibits diffusion thereinto of the dopant-containing species from the strained lattice layer, thereby controlling/limiting the depth of the junction to substantially the pre-selected thickness of the strained lattice layer.
    • 一种制造半导体器件的方法,包括以下顺序的步骤:(a)提供半导体衬底,该半导体衬底在其上表面包括预先选定的第一半导体材料的应变晶格层和第二半导体材料的下层; 和(b)将含有一种导电类型的含掺杂剂的物质引入到第一半导体材料的应变晶格层的至少一个预先选择的部分中,以在其中形成含有掺杂剂的区域,其中接合部的深度基本上等于预先 - 选择的厚度,其中下层的第二半导体材料抑制来自应变晶格层的含掺杂剂物质的扩散,从而将结的深度控制/限制到基本上预应变晶格层的预选厚度。
    • 4. 发明授权
    • Method of forming transistor devices with different threshold voltages using halo implant shadowing
    • 使用光晕植入物阴影形成具有不同阈值电压的晶体管器件的方法
    • US07598161B2
    • 2009-10-06
    • US11861534
    • 2007-09-26
    • Jingrong ZhouMark MichaelDonna Michael, legal representativeDavid WuJames F. BullerAkif Sultan
    • Jingrong ZhouMark MichaelDavid WuJames F. BullerAkif Sultan
    • H01L21/425
    • H01L21/26513H01L21/26586H01L21/823807H01L29/1083
    • The halo implant technique described herein employs a halo implant mask that creates a halo implant shadowing effect during halo dopant bombardment. A first transistor device structure and a second transistor device structure are formed on a wafer such that they are orthogonally oriented to each other. A common halo implant mask is created with features that prevent halo implantation of the diffusion region of the second transistor device structure during halo implantation of the diffusion region of the first transistor device structure, and with features that prevent halo implantation of the diffusion region of the first transistor device structure during halo implantation of the diffusion region of the second transistor device structure. The orthogonal orientation of the transistor device structures and the pattern of the halo implant mask obviates the need to create multiple implant masks to achieve different threshold voltages for the transistor device structures.
    • 本文描述的光晕植入技术采用在光晕掺杂剂轰击期间产生晕轮植入物阴影效应的光晕注入掩模。 第一晶体管器件结构和第二晶体管器件结构形成在晶片上,使得它们彼此正交地取向。 创建了常见的光晕注入掩模,其特征在于,在第一晶体管器件结构的扩散区域的晕圈注入期间防止第二晶体管器件结构的扩散区域的光晕注入,并且具有防止第 在第二晶体管器件结构的扩散区的晕圈注入期间的第一晶体管器件结构。 晶体管器件结构的正交取向和光晕注入掩模的图案消除了创建多个注入掩模以实现晶体管器件结构的不同阈值电压的需要。
    • 7. 发明授权
    • Bi-modal halo implantation
    • 双模光晕植入
    • US07176095B1
    • 2007-02-13
    • US10790939
    • 2004-03-01
    • Akif SultanDavid WuWen-Jie QiMark Fuselier
    • Akif SultanDavid WuWen-Jie QiMark Fuselier
    • H01L21/336
    • H01L21/26586H01L29/6659H01L29/7833
    • Methods of fabricating halo regions are provided. In one aspect, a method is provided of fabricating a first halo region and a second halo region for a circuit device of a first conductivity type and having a gate structure with first and second sidewalls. The first halo region of a second conductivity type is formed by implanting the substrate with impurities in a first direction toward the first sidewall of the gate structure. The second halo region of the second conductivity type is formed by implanting the substrate with impurities in a second direction toward the second sidewall of the gate structure. The first and second halo regions are formed without implanting impurities in a direction substantially perpendicular to the first and second directions.
    • 提供制造晕圈的方法。 在一个方面,提供了一种制造用于第一导电类型的电路器件的第一卤素区域和第二卤素区域的方法,并具有具有第一和第二侧壁的栅极结构。 第二导电类型的第一晕区是通过沿着第一方向将杂质注入栅极结构的第一侧壁而形成的。 第二导电类型的第二晕区是通过向栅极结构的第二侧壁向第二方向注入具有杂质的衬底形成的。 形成第一和第二晕圈,而不在基本上垂直于第一和第二方向的方向上植入杂质。