Low temperature methods of etching semiconductor substrates
    5.
    发明授权
    Low temperature methods of etching semiconductor substrates 有权
    低温半导体衬底蚀刻方法

    公开(公告)号:US07393700B2

    公开(公告)日:2008-07-01

    申请号:US11208490

    申请日:2005-08-22

    IPC分类号: H01L21/302

    摘要: Methods of etching a semiconductor substrate may include providing a first gas that is chemically reactive with respect to the semiconductor substrate, and while providing the first gas, providing a second gas different than the first gas. More particularly, a molecule of the second gas may include a hydrogen atom, and the second gas may lower a temperature at which the first gas chemically reacts with the semiconductor substrate. The mixture of the first and second gases may be provided adjacent the semiconductor substrate to etch the semiconductor substrate.

    摘要翻译: 蚀刻半导体衬底的方法可以包括提供相对于半导体衬底具有化学反应性的第一气体,并且在提供第一气体的同时,提供不同于第一气体的第二气体。 更具体地,第二气体的分子可以包括氢原子,第二气体可以降低第一气体与半导体衬底发生化学反应的温度。 第一和第二气体的混合物可以设置在邻近半导体衬底处以蚀刻半导体衬底。

    Low temperature methods of etching semiconductor substrates
    6.
    发明申请
    Low temperature methods of etching semiconductor substrates 有权
    低温半导体衬底蚀刻方法

    公开(公告)号:US20060057821A1

    公开(公告)日:2006-03-16

    申请号:US11208490

    申请日:2005-08-22

    IPC分类号: H01L21/30

    摘要: Methods of etching a semiconductor substrate may include providing a first gas that is chemically reactive with respect to the semiconductor substrate, and while providing the first gas, providing a second gas different than the first gas. More particularly, a molecule of the second gas may include a hydrogen atom, and the second gas may lower a temperature at which the first gas chemically reacts with the semiconductor substrate. The mixture of the first and second gases may be provided adjacent the semiconductor substrate to etch the semiconductor substrate.

    摘要翻译: 蚀刻半导体衬底的方法可以包括提供相对于半导体衬底具有化学反应性的第一气体,并且在提供第一气体的同时,提供不同于第一气体的第二气体。 更具体地,第二气体的分子可以包括氢原子,第二气体可以降低第一气体与半导体衬底发生化学反应的温度。 第一和第二气体的混合物可以设置在邻近半导体衬底处以蚀刻半导体衬底。

    SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
    10.
    发明申请
    SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME 有权
    半导体器件及其制造方法

    公开(公告)号:US20090239348A1

    公开(公告)日:2009-09-24

    申请号:US12478345

    申请日:2009-06-04

    IPC分类号: H01L21/336

    CPC分类号: C30B29/06 C30B15/00

    摘要: A semiconductor device formed on a strained silicon layer and a method of manufacturing such a semiconductor device are disclosed. In accordance with this invention, a first silicon germanium layer is formed on a single crystalline silicon substrate; a second silicon germanium layer is formed on the first silicon germanium layer, the second silicon germanium layer having a concentration of germanium in a range of about 1 percent by weight to about 15 percent by weight based on the total weight of the second silicon germanium layer; a strained silicon layer is formed on the second silicon germanium layer; an isolation layer is formed at a first portion of the strained silicon layer; a gate structure is formed on the strained silicon layer; and, source/drain regions are formed at second portions of the strained silicon layer adjacent to the gate structure to form a transistor.

    摘要翻译: 公开了一种形成在应变硅层上的半导体器件及其制造方法。 根据本发明,在单晶硅衬底上形成第一硅锗层; 第二硅锗层形成在第一硅锗层上,第二硅锗层的锗浓度在约1重量%至约15重量%的范围内,基于第二硅锗层的总重量 ; 在第二硅锗层上形成应变硅层; 在应变硅层的第一部分处形成隔离层; 在应变硅层上形成栅极结构; 并且源极/漏极区域形成在与栅极结构相邻的应变硅层的第二部分处以形成晶体管。