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    • 41. 发明申请
    • Method of manufacturing semiconductor device
    • 制造半导体器件的方法
    • US20080124856A1
    • 2008-05-29
    • US11639344
    • 2006-12-15
    • Sergey PidinTamotsu Owada
    • Sergey PidinTamotsu Owada
    • H01L21/71H01L21/04
    • H01L21/823807H01L29/665H01L29/7843
    • A method of manufacturing a semiconductor device, in which a stress film having a large stress can be formed with high accuracy over a transistor. The method comprises the steps of: depositing a tensile stress film over the whole surface of a substrate having formed thereon an n-MOSFET; removing by etching the deposited stress film while leaving it on the n-MOSFET; and performing UV irradiation to the remaining stress film. By the UV irradiation, a tensile stress of the stress film is improved. Further, although the stress film is cured by the UV irradiation, occurrence of etching defects caused by the curing is prevented because the UV irradiation is performed after the etching. Thus, speeding-up and high quality of the n-MOSFET can be attained.
    • 一种制造半导体器件的方法,其中可以以高精度在晶体管上形成具有大应力的应力膜。 该方法包括以下步骤:在其上形成有n-MOSFET的衬底的整个表面上沉积拉伸应力膜; 通过蚀刻沉积的应力膜同时将其留在n-MOSFET上去除; 对剩余的应力膜进行紫外线照射。 通过UV照射,应力膜的拉伸应力提高。 此外,虽然通过UV照射使应力膜固化,但是由于在蚀刻之后进行UV照射,因此防止了由固化引起的蚀刻缺陷的发生。 因此,可以获得n-MOSFET的加速和高质量。
    • 43. 发明授权
    • Method for fabricating a semiconductor device having self aligned source (SAS) crossing trench
    • 用于制造具有自对准源(SAS)交叉沟槽的半导体器件的方法
    • US07074682B2
    • 2006-07-11
    • US10951503
    • 2004-09-27
    • Jum Soo KimSung Mun Jung
    • Jum Soo KimSung Mun Jung
    • H01L21/71
    • H01L27/11521H01L27/115
    • In order to provide a method for preventing the channel length from being shortened as well as reducing the SAS resistance, the semiconductor device according to the present invention is manufactured by forming continuous linear trench lines on a semiconductor substrate, forming gate oxide lines on the semiconductor substrate between the trench lines, forming gate lines on the trench lines and the gate oxide lines, the gate lines being substantially perpendicular to the trench lines, etching the gate oxide lines and trench lines positioned between the gate lines, to form an etched region forming self aligned sources (SASs) by implanting impurity ions into the etched region, forming spacers on sidewalls of the gate lines, and implanting impurity ions in the SAS region using the spacers as a mask.
    • 为了提供防止通道长度缩短以及降低SAS电阻的方法,根据本发明的半导体器件通过在半导体衬底上形成连续的线性沟槽线,在半导体衬底上形成栅极氧化物线 沟槽线之间的衬底,在沟槽线上形成栅极线和栅极氧化物线,栅极线基本上垂直于沟槽线,蚀刻位于栅极线之间的栅极氧化物线和沟槽线,以形成蚀刻区域 通过将杂质离子注入到蚀刻区域中形成自对准源(SAS),在栅极线的侧壁上形成间隔物,并且使用间隔物作为掩模将杂质离子注入到SAS区域中。