Invention Grant
- Patent Title: Wire bonding technique for integrated circuit board connections
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Application No.: US15432969Application Date: 2017-02-15
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Publication No.: US10600756B1Publication Date: 2020-03-24
- Inventor: Evan A. Aanerud , Kahle B. Sullivan , James J. Malove , Justin M. Dougherty
- Applicant: Evan A. Aanerud , Kahle B. Sullivan , James J. Malove , Justin M. Dougherty
- Applicant Address: US VA Arlington
- Assignee: United States of America, as represented by the Secretary of the Navy
- Current Assignee: United States of America, as represented by the Secretary of the Navy
- Current Assignee Address: US VA Arlington
- Agent Gerhard W. Thielman
- Main IPC: H01L23/00
- IPC: H01L23/00 ; H01L21/44

Abstract:
A method is provided for connecting a chip die to a circuit board with a capillary dispenser to deposit gold. The method includes forming a first bond by depositing gold from the dispenser to a board pad on the circuit board; forming a second bond by depositing the gold from the dispenser to a die pad on the chip die; extruding a filament of the gold by the dispenser in a normal direction from the second bond; rotating the filament laterally away from the first bond along a first radius; extruding the filament while rotating the filament towards the first bond along a second radius larger than the first radius; and forming a third bond by depositing the gold on the first bond to form a third bond.
Information query
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