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    • 8. 发明授权
    • Cavity structure for semiconductor structures
    • 半导体结构的腔结构
    • US07378724B2
    • 2008-05-27
    • US11166454
    • 2005-06-24
    • Hsiu-Mei YuGil HuangChien-Tung YuOwen Chen
    • Hsiu-Mei YuGil HuangChien-Tung YuOwen Chen
    • H01L23/02
    • H01L27/14618H01L27/14632H01L27/14687H01L2924/0002H01L2924/00
    • A method for providing a cavity structure on a semiconductor device is provided. The method of forming the cavity structure, which may be particularly useful in packaging an image sensor, includes forming a spacer layer over a substrate. The spacer layer may be formed from a photo-sensitive material which may be patterned using photolithography techniques to form cavity walls surrounding dies on the wafer. A packaging layer, such as a substantially transparent layer, may be placed directly upon the cavity walls prior to curing. In another embodiment, the cavity walls are cured, an adhesive is applied to a surface of the cavity walls, and the packaging layer placed upon the adhesive. Thereafter, the wafer may be diced and the individual dies may be packaged for use.
    • 提供了一种在半导体器件上提供空腔结构的方法。 在封装图像传感器中特别有用的形成腔结构的方法包括在衬底上形成间隔层。 间隔层可以由感光材料形成,光敏材料可以使用光刻技术进行图案化以在晶片上形成周围的模具的空腔壁。 包装层,例如基本上透明的层,可以在固化之前直接放置在空腔壁上。 在另一个实施例中,空腔壁被固化,将粘合剂施加到空腔壁的表面,并且将包装层放置在粘合剂上。 此后,可以对晶片进行切割,并且可以将各个管芯封装使用。