METHOD FOR SELECTIVELY FORMING STRAIN IN A TRANSISTOR BY A STRESS MEMORIZATION TECHNIQUE WITHOUT ADDING ADDITIONAL LITHOGRAPHY STEPS
    1.
    发明申请
    METHOD FOR SELECTIVELY FORMING STRAIN IN A TRANSISTOR BY A STRESS MEMORIZATION TECHNIQUE WITHOUT ADDING ADDITIONAL LITHOGRAPHY STEPS 有权
    通过应力记忆技术选择性地在晶体管中形成应变的方法,而不需要添加附加的光刻步骤

    公开(公告)号:US20090197381A1

    公开(公告)日:2009-08-06

    申请号:US12179116

    申请日:2008-07-24

    IPC分类号: H01L21/8236

    摘要: A selective stress memorization technique is disclosed in which the creation of tensile strain may be accomplished without additional photolithography steps by using an implantation mask or any other mask required during a standard manufacturing flow, or by providing a patterned cap layer for a strained re-crystallization of respective drain and source areas. In still other aspects, additional anneal steps may be used for selectively creating a crystalline state and a non-crystalline state prior to the re-crystallization on the basis of a cap layer. Thus, enhanced strain may be obtained in one type of transistor while not substantially negatively affecting the other type of transistor without requiring additional photolithography steps.

    摘要翻译: 公开了选择性应力记忆技术,其中通过使用注入掩模或在标准制造流程期间所需的任何其它掩模,或通过提供用于应变重结晶的图案化盖层,可以在没有附加光刻步骤的情况下实现拉伸应变 的排水和源区。 在其它方面,可以使用附加的退火步骤,以在基于盖层的重结晶之前选择性地产生晶体状态和非晶态。 因此,可以在一种类型的晶体管中获得增强的应变,而不需要额外的光刻步骤基本上不影响其他类型的晶体管。

    Method for selectively forming strain in a transistor by a stress memorization technique without adding additional lithography steps
    2.
    发明授权
    Method for selectively forming strain in a transistor by a stress memorization technique without adding additional lithography steps 有权
    通过应力存储技术在晶体管中选择性地形成应变的方法,而不添加额外的光刻步骤

    公开(公告)号:US07906385B2

    公开(公告)日:2011-03-15

    申请号:US12179116

    申请日:2008-07-24

    IPC分类号: H01L21/8238

    摘要: A selective stress memorization technique is disclosed in which the creation of tensile strain may be accomplished without additional photolithography steps by using an implantation mask or any other mask required during a standard manufacturing flow, or by providing a patterned cap layer for a strained re-crystallization of respective drain and source areas. In still other aspects, additional anneal steps may be used for selectively creating a crystalline state and a non-crystalline state prior to the re-crystallization on the basis of a cap layer. Thus, enhanced strain may be obtained in one type of transistor while not substantially negatively affecting the other type of transistor without requiring additional photolithography steps.

    摘要翻译: 公开了选择性应力记忆技术,其中通过使用注入掩模或在标准制造流程期间所需的任何其它掩模,或通过提供用于应变重结晶的图案化盖层,可以在没有附加光刻步骤的情况下实现拉伸应变 的排水和源区。 在其它方面,可以使用附加的退火步骤,以在基于盖层的重结晶之前选择性地产生晶体状态和非晶态。 因此,可以在一种类型的晶体管中获得增强的应变,而不需要额外的光刻步骤基本上不影响其他类型的晶体管。