Device and method for joining substrates
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FUJIFILM CORP
- Publication Date
- 2007-03-28
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present invention relates to an apparatus and method for bonding semiconductor substrates and sealing substrates in the manufacture of chip-sized packages. Background technique
[0002] Digital cameras and digital video cameras having solid-state imaging devices such as CCDs and CMOSs are widely used. A semiconductor substrate in a conventional solid-state imaging device, that is, an image sensor chip, is contained in a package and sealed by transparent glass ribs. However, solid-state imaging devices are required to be downsized due to an increase in demand for mobile phones having a function of carrying images and the like.
[0003] Wafer level chip size packaging (hereinafter referred to as WLCSP) is a packaging method for downsizing a solid-state imaging device. In the semiconductor wafer process, when the packaging is completed, the semiconductor devices in the WLCSP are obtained by dicing the wafer by scribing. A solid-state imaging devi...