Semiconductor device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 18, 2012
Grant Date -
Jul 9, 2009
app pub date -
Mar 11, 2009
filing date -
Sep 12, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A semiconductor device includes a semiconductor substrate formed of at least two kinds of group III elements and nitrogen, an active layer formed on the semiconductor substrate, and a nitride semiconductor layer formed on a surface of the semiconductor substrate and formed between the semiconductor substrate and the active layer. The nitride semiconductor layer is formed of the same constituent elements of the semiconductor substrate. A composition ratio of the lightest element among the group III elements of the nitride semiconductor layer is higher than a composition ratio of the corresponding element of the semiconductor substrate.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully