Method for shaping photoresist mask to improve high aspect ratio ion implantation
    5.
    发明授权
    Method for shaping photoresist mask to improve high aspect ratio ion implantation 有权
    光刻胶掩模整形以改善垂直离子注入的方法

    公开(公告)号:US06200884B1

    公开(公告)日:2001-03-13

    申请号:US09364976

    申请日:1999-07-31

    IPC分类号: H01L21425

    摘要: A method for making a ULSI MOSFET chip includes masking areas such as transistor gates with photoresist mask regions. Prior to ion implantation, the top shoulders of the mask regions are etched away, to round off the shoulders. This promotes subsequent efficient quasi-vertical ion implantation, commonly referred to as “high aspect ratio implantation” in the semiconductor industry.

    摘要翻译: 制造ULSI MOSFET芯片的方法包括具有光致抗蚀剂掩模区域的诸如晶体管栅极的掩模区域。 在离子注入之前,掩模区域的顶部肩部被蚀刻掉,从而使肩部圆整。 这促进随后的有效的准垂直离子注入,在半导体工业中通常被称为“高纵横比植入”。

    Method and system for providing contact to a first polysilicon layer in a flash memory device
    6.
    发明授权
    Method and system for providing contact to a first polysilicon layer in a flash memory device 有权
    用于提供与闪存器件中的第一多晶硅层的接触的方法和系统

    公开(公告)号:US08329530B1

    公开(公告)日:2012-12-11

    申请号:US13566741

    申请日:2012-08-03

    摘要: A method and system for providing at least one contact in a flash memory device is disclosed. The flash memory device includes a plurality of gate stacks and at lease one component including a polysilicon layer as a top surface. The method and system further include forming a silicide on the top surface of the polysilicon layer and providing an insulating layer covering the plurality of gate stacks, the at least one component and the silicide. The method and system also include etching the insulating layer to provide at least one contact hole. The insulating layer etching step uses the silicide as an etch stop layer to ensure that the insulating etching step does not etch through the polysilicon layer. The method and system also include filling the at least one contact hole with a conductor.

    摘要翻译: 公开了一种用于在闪速存储器件中提供至少一个触点的方法和系统。 闪速存储器件包括多个栅极堆叠,并且至少包括一个包括多晶硅层作为顶表面的部件。 该方法和系统还包括在多晶硅层的顶表面上形成硅化物,并提供覆盖多个栅叠层,至少一个元件和硅化物的绝缘层。 该方法和系统还包括蚀刻绝缘层以提供至少一个接触孔。 绝缘层蚀刻步骤使用硅化物作为蚀刻停止层,以确保绝缘蚀刻步骤​​不会蚀刻通过多晶硅层。 该方法和系统还包括用导体填充至少一个接触孔。

    Shallow trench isolation approach for improved STI corner rounding
    7.
    发明授权
    Shallow trench isolation approach for improved STI corner rounding 有权
    浅沟隔离方法可改善STI拐角四舍五入

    公开(公告)号:US07439141B2

    公开(公告)日:2008-10-21

    申请号:US10277395

    申请日:2002-10-22

    IPC分类号: H01L21/00

    CPC分类号: H01L21/76235

    摘要: A method for performing shallow trench isolation during semiconductor fabrication that improves trench corner rounding is disclosed. The method includes etching trenches into a silicon substrate between active regions, and performing a double liner oxidation process on the trenches. The method further includes performing a double sacrificial oxidation process on the active regions, wherein corners of the trenches are substantially rounded by the four oxidation processes.

    摘要翻译: 公开了一种用于在半导体制造期间进行浅沟槽隔离的方法,其改善沟槽角圆化。 该方法包括将沟槽蚀刻到有源区域之间的硅衬底中,并在沟槽上执行双衬层氧化工艺。 该方法还包括对活性区域进行双重牺牲氧化处理,其中沟槽的角通过四个氧化过程基本上被圆化。

    Method and system for decreasing the spaces between wordlines
    10.
    发明授权
    Method and system for decreasing the spaces between wordlines 有权
    减少字线间空格的方法和系统

    公开(公告)号:US06727195B2

    公开(公告)日:2004-04-27

    申请号:US09777457

    申请日:2001-02-06

    IPC分类号: H01L21336

    摘要: A method and system for providing a semiconductor device is disclosed. The method and system include providing a semiconductor substrate and providing a plurality of lines separated by a plurality of spaces. Each of the plurality of spaces preferably has a first width that is less than a minimum feature size. In one aspect, the method and system include providing a reverse mask having a plurality of apertures on an insulating layer. In this aspect, the method and system also include trimming the reverse mask to increase a size of each of the plurality of apertures, removing a portion of the insulating layer exposed by the plurality of trimmed apertures to provide a plurality of trenches and providing a plurality of lines in the plurality of trenches. In a second aspect, the method and system include providing a reverse mask on the insulating layer and removing a first portion of the insulating layer exposed by the plurality of apertures to provide a plurality of trenches. The reverse mask includes a plurality of apertures having a first width. Each of the plurality of trenches has a width. In this aspect, the method and system also include trimming a second portion of the insulating layers to increase the width of each of the plurality of trenches and providing a plurality of lines in the plurality of trenches.

    摘要翻译: 公开了一种用于提供半导体器件的方法和系统。 该方法和系统包括提供半导体衬底并提供由多个空间隔开的多条线。 多个空间中的每一个优选地具有小于最小特征尺寸的第一宽度。 在一个方面,该方法和系统包括在绝缘层上提供具有多个孔的反向掩模。 在这方面,该方法和系统还包括修整反向掩模以增加多个孔中的每一个的尺寸,去除由多个修剪的孔暴露的绝缘层的一部分以提供多个沟槽并提供多个 的多个沟槽中的线。 在第二方面,所述方法和系统包括在绝缘层上提供反向掩模,并且去除由多个孔暴露的绝缘层的第一部分以提供多个沟槽。 反向掩模包括具有第一宽度的多个孔。 多个沟槽中的每一个具有宽度。 在这方面,该方法和系统还包括修整绝缘层的第二部分以增加多个沟槽中的每一个的宽度并且在多个沟槽中提供多条线。