Ignition apparatus for internal combustion engine with improved electrical insulation plate including beryllia
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United States of America Patent
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-
Jul 8, 2003
Grant Date -
Jan 31, 2002
app pub date -
Nov 10, 1999
filing date -
Dec 27, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ignition apparatus is provided for internal combustion engines to obtain higher reliability for the solder bonding parts. The ignition apparatus includes a molded case having an input-output terminal formed on the molded case, a semiconductor switching device, a control circuit board, and a heat sink. As such, the molded case provides a single body for containing the input-output terminal, the semiconductor switching device, the control circuit board and the heat sink. On the heat sink, one or more laminated structures are used, including the semiconductor switching devices with beryllia as an electric insulation plate.
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