Invention Grant
- Patent Title: Method of wafer-to-wafer bonding
- Patent Title (中): 晶圆到晶圆键合的方法
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Application No.: US11804863Application Date: 2007-05-21
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Publication No.: US07659182B2Publication Date: 2010-02-09
- Inventor: Vladimir Vaganov , Nickolai Belov
- Applicant: Vladimir Vaganov , Nickolai Belov
- Agency: Fitch, Even, Tabin & Flannery
- Main IPC: H01L21/00
- IPC: H01L21/00

Abstract:
Methods of wafer-to-wafer bonding are disclosed. These methods use a force-transposing substrate providing redistribution of the applied force to the local bonding areas across the wafer. Certain versions of the Present Invention also provide a compliant force-distributing member along with applying bonding material to bonding areas in select locations. A predetermined sequence of external force loading and temperature steps ensure creating bonds between the wafers in the bonding areas. The disclosed methods improve wafer bonding, by increasing its uniformity and strength across the wafer, increasing both reproducibility and yield process and decreasing cost of semiconductor and MEMS devices.
Public/Granted literature
- US20080070376A1 Method of wafer-to-wafer bonding Public/Granted day:2008-03-20
Information query
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