Semiconductor fabrication with multiple low dose implant
    1.
    发明授权
    Semiconductor fabrication with multiple low dose implant 失效
    具有多个低剂量植入物的半导体制造

    公开(公告)号:US06455385B1

    公开(公告)日:2002-09-24

    申请号:US09003751

    申请日:1998-01-07

    IPC分类号: H01L21265

    摘要: A method of reducing implant dose loss is provided. The method includes performing multiple low dose implant steps with interspersed anneal steps, thereby avoiding amorphous-silicon formation. The anneal steps may be performed at high temperatures or at low temperatures.

    摘要翻译: 提供减少植入剂量损失的方法。 该方法包括执行具有散置退火步骤的多个低剂量注入步骤,从而避免非晶硅形成。 退火步骤可以在高温或低温下进行。

    Semiconductor processing employing a semiconductor spacer
    3.
    发明授权
    Semiconductor processing employing a semiconductor spacer 有权
    采用半导体衬垫的半导体处理

    公开(公告)号:US06642134B2

    公开(公告)日:2003-11-04

    申请号:US09401797

    申请日:1999-09-22

    IPC分类号: H01L213205

    摘要: A semiconductor device is provided with semiconducting sidewall spacers used in the formation of source/drain regions. The semiconducting sidewall spacers also reduce the possibility of suicide shorting through shallow source/drain junctions. Embodiments include doping the semiconducting sidewall spacers so that they serve as a source of impurities for forming source/drain extensions during activation annealing.

    摘要翻译: 半导体器件设置有用于形成源极/漏极区域的半导体侧壁间隔物。 半导体侧壁间隔物还减少了通过浅源极/漏极结的自杀性短路的可能性。 实施例包括掺杂半导体侧壁间隔物,使得它们用作在激活退火期间形成源极/漏极延伸的杂质源。

    Source/drain doping technique for ultra-thin-body SOI MOS transistors
    4.
    发明授权
    Source/drain doping technique for ultra-thin-body SOI MOS transistors 有权
    超薄体SOI MOS晶体管的源极/漏极掺杂技术

    公开(公告)号:US06403433B1

    公开(公告)日:2002-06-11

    申请号:US09397217

    申请日:1999-09-16

    IPC分类号: H01L21336

    CPC分类号: H01L29/66772 H01L29/78618

    摘要: An ultra-large-scale integrated (ULSI) circuit includes MOSFETs on an SOI substrate. The MOSFETs include elevated source and drain regions. The elevated source and drain regions are amorphized before doping. Neutral ion species can be utilized to amorphize the elevated source and drain region. Dopants are activated in a low-temperature rapid thermal anneal process.

    摘要翻译: 超大规模集成(ULSI)电路包括SOI衬底上的MOSFET。 MOSFET包括升高的源极和漏极区域。 在掺杂之前,升高的源极和漏极区非晶化。 中性离子物质可用于使提升的源极和漏极区域非晶化。 掺杂剂在低温快速热退火工艺中被激活。

    Method of manufacturing semiconductor devices having uniform, fully doped gate electrodes
    5.
    发明授权
    Method of manufacturing semiconductor devices having uniform, fully doped gate electrodes 有权
    具有均匀的,完全掺杂的栅电极的半导体器件的制造方法

    公开(公告)号:US06277698B1

    公开(公告)日:2001-08-21

    申请号:US09382580

    申请日:1999-08-25

    IPC分类号: H01L21336

    摘要: A semiconductor device is provided with a gate electrode having a substantially rectangular profile by forming a dielectric film prior to depositing the gate electrode layer. The dielectric film is patterned and etched to form regions having a rectangular profile separated by open regions. A gate electrode layer is then deposited followed by planarization to form gate electrodes having a substantially rectangular profile.

    摘要翻译: 通过在沉积栅极电极层之前形成电介质膜,半导体器件设置有具有大致矩形轮廓的栅电极。 对电介质膜进行图案化和蚀刻以形成具有由开放区域分开的矩形轮廓的区域。 然后沉积栅极电极层,然后平坦化以形成具有基本上矩形轮廓的栅电极。

    Deuterium doping for hot carrier reliability improvement
    6.
    发明授权
    Deuterium doping for hot carrier reliability improvement 失效
    氘掺杂热载体可靠性提高

    公开(公告)号:US6143632A

    公开(公告)日:2000-11-07

    申请号:US993049

    申请日:1997-12-18

    申请人: Emi Ishida Peng Fang

    发明人: Emi Ishida Peng Fang

    摘要: A semiconductor device having reduced hot carrier degradation is achieved by doping the semiconductor substrate and gate oxide with deuterium. A conventional semiconductor device is formed with sequentially deposited metal layers and dielectric layers and a topside protective dielectric layer deposited thereon. Deuterium is introduced to the semiconductor device by using deuterium-containing reactants in at least one of the semiconductor manufacturing steps to passivate dangling silicon bonds at the silicon/oxide interface region.

    摘要翻译: 具有减少的热载流子劣化的半导体器件通过用氘掺杂半导体衬底和栅极氧化物来实现。 常规的半导体器件形成有顺序沉积的金属层和介电层以及沉积在其上的顶侧保护电介质层。 通过在半导体制造步骤中的至少一个中使用含氘的反应物,在硅/氧化物界面区域钝化悬挂的硅键,将氘引入半导体器件。

    Method to incorporate, and a device having, oxide enhancement dopants
using gas immersion laser doping (GILD) for selectively growing an
oxide layer
    7.
    发明授权
    Method to incorporate, and a device having, oxide enhancement dopants using gas immersion laser doping (GILD) for selectively growing an oxide layer 失效
    使用气体浸渍激光掺杂(GILD)来选择生长氧化物层的掺入方法和具有氧化物增强掺杂剂的器件

    公开(公告)号:US5885904A

    公开(公告)日:1999-03-23

    申请号:US799235

    申请日:1997-02-14

    摘要: A method for forming a uniform and reliable oxide layer on the surface of a semiconductor substrate using projection gas immersion laser doping (P-GILD) is provided. A semiconductor substrate is immersed in an oxide enhancing compound containing atmosphere. The oxide enhancing compound containing atmosphere may include phosphorus, arsenic, boron or an equivalent. A 308 nm excimer laser is then applied to a portion of the substrate to induce incorporation of the oxide enhancing compound into a portion of the substrate. The deposition depth is dependent upon the strength of the laser energy directed at the surface of the substrate. A uniform and reliable oxide layer is then formed on the surface of the substrate by heating the substrate. The laser may be applied with a reflective reticle or mask formed on the substrate. An E.sup.2 PROM memory cell having a program junction region in a silicon substrate is also provided. An oxide layer is positioned between a program junction and a floating gate. The oxide layer is formed by a single or multiple thermal oxidation step(s) to have at least a first oxide thickness due to a GILD oxide enhancing compound underlying a region of the oxide having at least the first oxide thickness.

    摘要翻译: 提供了使用投影气体浸渍激光掺杂(P-GILD)在半导体衬底的表面上形成均匀且可靠的氧化物层的方法。 将半导体衬底浸入含氧化物增强化合物的气氛中。 含氧化物增强化合物的气氛可以包括磷,砷,硼或等价物。 然后将308nm准分子激光器施加到衬底的一部分以诱导氧化物增强化合物掺入衬底的一部分中。 沉积深度取决于指向衬底表面的激光能量的强度。 然后通过加热衬底在衬底的表面上形成均匀且可靠的氧化物层。 可以在基板上形成反射型掩模版或掩模来施加激光。 还提供了具有硅衬底中的程序接合区的E2PROM存储单元。 氧化物层位于程序结和浮动栅之间。 通过单个或多个热氧化步骤形成氧化物层,以至少具有第一氧化物厚度,这是由于至少具有第一氧化物厚度的氧化物区域下面的GILD氧化物增强化合物。

    MOS transistor processing utilizing UV-nitride removable spacer and HF etch
    8.
    发明授权
    MOS transistor processing utilizing UV-nitride removable spacer and HF etch 失效
    使用UV氮化物可移除间隔物和HF蚀刻的MOS晶体管处理

    公开(公告)号:US06472283B1

    公开(公告)日:2002-10-29

    申请号:US09667787

    申请日:2000-09-22

    IPC分类号: H01L21336

    摘要: Submicron-dimensioned MOS and/or CMOS transistors are fabricated by a process employing removable sidewall spacers made of a material, such as UV-nitride, which is readily etched in its as-deposited, undensified state but difficult-to-etch in its thermally annealed, densified state. The as-deposited, undensified spacers are removed by etching with dilute aqueous HF after implantation of moderately or heavily-doped source/drain regions but prior to annealing of the implants for dopant diffusion/activation and lattice damage relaxation. Lightly- or moderately doped, shallow-depth source/drain extensions are implanted and annealed after spacer removal.

    摘要翻译: 亚微米尺寸的MOS和/或CMOS晶体管通过采用由诸如UV氮化物的材料制成的可移除的侧壁间隔的工艺制造,其易于以其沉积的未增稠的状态蚀刻,但在其热 退火,致密化状态。 通过在植入中等或重掺杂的源极/漏极区域之后但在用于掺杂剂扩散/激活和晶格损伤弛豫的植入物退火之前用稀释的HF水溶液去除沉积的未增塑的间隔物。 轻微或中度掺杂的浅深度源极/漏极延伸部分在去除间隔物之后被植入和退火。

    Laser tailoring retrograde channel profile in surfaces
    9.
    发明授权
    Laser tailoring retrograde channel profile in surfaces 有权
    激光裁剪表面的逆行通道轮廓

    公开(公告)号:US06444550B1

    公开(公告)日:2002-09-03

    申请号:US09640177

    申请日:2000-08-17

    IPC分类号: H01L21425

    摘要: A semiconductor device having a retrograde channel profile is achieved by forming a retrograde impurity region in the surface portion of a semiconductor substrate, and subsequently forming a semiconductor layer on the retrograde impurity region at a predetermined thickness. The thickness of the semiconductor layer is controlled to localize the retrograde impurity region and its impurity concentration peak at a predetermined depth, thereby reducing the device's susceptibility to “reverse short channel effects.”

    摘要翻译: 具有逆行通道轮廓的半导体器件通过在半导体衬底的表面部分中形成逆向杂质区域,随后在逆向杂质区域上以预定厚度形成半导体层来实现。 控制半导体层的厚度以将逆向杂质区域和其杂质浓度峰值定位在预定深度,从而减少器件对“反向短沟道效应”的敏感性。

    Epitaxial delta doping for retrograde channel profile
    10.
    发明授权
    Epitaxial delta doping for retrograde channel profile 有权
    用于逆行通道轮廓的外延δ掺杂

    公开(公告)号:US06426279B1

    公开(公告)日:2002-07-30

    申请号:US09598911

    申请日:2000-06-22

    IPC分类号: H01L21425

    摘要: A semiconductor device exhibiting a super-steep retrograde channel profile to reduce susceptibility to “latch up” is achieved by forming a high impurity concentration layer on a semiconductor substrate and forming a diffusion cap layer near the surface of the high impurity concentration layer. Subsequently, a low impurity concentration layer is formed on the diffusion cap layer of the high impurity concentration layer. The diffusion cap layer formed between the high and low impurity concentration layers substantially prevents the impurities contained in the high impurity concentration layer from diffusing into the overlying low impurity concentration layer, thereby achieving a super-steep retrograde channel profile.

    摘要翻译: 通过在半导体衬底上形成高杂质浓度层并在高杂质浓度层的表面附近形成扩散覆盖层,实现了表现出陡峭逆向沟道轮廓以减小“闩锁”敏感性的半导体器件。 接着,在高杂质浓度层的扩散覆盖层上形成低杂质浓度层。 形成在高杂质浓度层和低杂质浓度层之间的扩散帽层基本上防止了高杂质浓度层中所含的杂质扩散到上覆的低杂质浓度层中,从而实现了超陡逆向沟道轮廓。