Stress-Isolated MEMS Device and Method Therefor
    1.
    发明申请
    Stress-Isolated MEMS Device and Method Therefor 审中-公开
    应力分离MEMS器件及其方法

    公开(公告)号:US20080290430A1

    公开(公告)日:2008-11-27

    申请号:US11753851

    申请日:2007-05-25

    IPC分类号: H01L29/84 H01L21/52

    CPC分类号: B81B7/0048 B81B2201/0235

    摘要: A stress-isolated MEMS device (14) includes a platform (26) suspended over a substrate wafer (24). In one embodiment, the platform (26) is suspended by springs (38), but other suspension techniques may also be used. A transducer (28) is formed over the platform (26). The transducer (28) includes immovable portions (50) and movable portions (52). The transducer (28) and platform (26) are sealed within a cavity (62) formed within a cap support (30) between a cap wafer (32) and the substrate wafer (24). A leadframe (22) is affixed to the substrate wafer (24). The cap wafer (32) and other portions of the device (14) become embedded in a package material (20) so that a substantially solid boundary forms between the cap wafer (32) and the package material (20).

    摘要翻译: 应力隔离MEMS器件(14)包括悬挂在衬底晶片(24)上的平台(26)。 在一个实施例中,平台(26)由弹簧(38)悬挂,但也可以使用其它悬挂技术。 传感器(28)形成在平台(26)上方。 换能器(28)包括不可移动部分(50)和可移动部分(52)。 传感器(28)和平台(26)被密封在形成在盖子晶片(32)和基板晶片(24)之间的盖支撑件(30)内的空腔(62)内。 引线框架(22)固定到基板晶片(24)上。 封盖晶片(32)和器件(14)的其它部分变得嵌入封装材料(20)中,使得在盖晶片(32)和封装材料(20)之间形成基本上固体的边界。

    Package for electrical components having a molded structure with a port
extending into the molded structure
    2.
    发明授权
    Package for electrical components having a molded structure with a port extending into the molded structure 失效
    具有具有延伸到模制结构中的端口的模制结构的电气部件的封装

    公开(公告)号:US5686698A

    公开(公告)日:1997-11-11

    申请号:US269254

    申请日:1994-06-30

    摘要: A package for mounting electrical components and a method for making the package. A mold structure (50) is formed by encapsulating a portion of a leadframe (10) with a molding compound. Leads (23) project from one side of the mold structure and a portion of a tab (27) projects from another side of the mold structure, which has a cavity (57) between the leads (23) and the tab (27). In addition, the mold structure has vent holes (76) between the leads (23) and an aperture (62) extending to the cavity. After mounting a semiconductor chip (64) in the cavity (57), it is covered by a lid (53) and a portion (24) of the leads (23) and a portion (29) of the tab (27) are formed. The tab (27) provides structural rigidity to the mold structure (50) and permits surface mounting the mold structure (50).

    摘要翻译: 用于安装电气部件的封装以及用于制造封装的方法。 模制结构(50)通过将引线框架(10)的一部分与模塑料封装而形成。 引线(23)从模具结构的一侧突出,并且突片(27)的一部分从模具结构的另一侧突出,其在引线(23)和突片(27)之间具有空腔(57)。 此外,模具结构在引线(23)和延伸到空腔的孔(62)之间具有通气孔(76)。 在半导体芯片(64)安装在空腔(57)中之后,被盖子(53)覆盖,引线(23)的一部分(24)和突片(27)的一部分(29)形成 。 突片(27)为模具结构(50)提供结构刚性,并允许表面安装模具结构(50)。