Semiconductor laser device
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United States of America Patent
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Jun 15, 2010
Grant Date -
May 31, 2007
app pub date -
Nov 30, 2006
filing date -
Nov 30, 2005
priority date (Note) -
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Abstract
A super-lattice structure is used for a portion of a laser device of a self-aligned structure to lower the resistance of the device by utilizing the extension of electric current in the layer, paying attention to the fact that the lateral conduction of high density doping in the super-lattice structure is effective for decreasing the resistance of the laser, in order to lower the operation voltage and increase the power in nitride type wide gap semiconductor devices in which crystals with high carrier density are difficult to obtain and the device resistance is high.
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