Patent ID: 9496455
Filing Date: 2016-11-15
CPC Classification: H01L

Claim Text:
1. A method of fabricating a UV light emitting diode, comprising: forming an n-type semiconductor layer over a growth substrate within a growth chamber; and forming an active layer and a p-type semiconductor layer over the n-type semiconductor layer, wherein: the forming the n-type semiconductor layer includes growing a first n-type semiconductor layer including AlGaN, the growing the first n-type semiconductor layer includes changing a growth pressure within the growth chamber and changing a flow rate of an n-type dopant source introduced into the growth chamber, the changing the growth pressure during growth of the first n-type semiconductor layer includes performing at least one cycle of a pressure increasing period and a pressure decreasing period, and the changing the flow rate of the n-type dopant source includes increasing the flow rate of the n-type dopant source in a pulse form.