Patent ID: 6661031
Filing Date: 2003-12-09
Classification: G02B,H01L

Abstract:
A resonant-cavity light-emitting diode comprising:a substrate having a first main surface and a second main surface which are substantially parallel to each other; a first semiconductor distributed Bragg reflector mirror layer formed on said first main surface of said substrate; a semiconductor light-emitting layer formed over said first semiconductor distributed Bragg reflector mirror layer; a second semiconductor distributed Bragg reflector mirror layer formed over said semiconductor light-emitting layer; a light extraction section which is formed on said second semiconductor distributed Bragg reflector mirror layer and has an opening at a substantially central portion thereof to extract light from said semiconductor light-emitting layer; a first electrode formed to surround said opening of said light extraction section on said second semiconductor distributed Bragg reflector mirror layer; a second electrode formed on said second main surface of said substrate, said second electrode being configured to form a current path leading to said first electrode through said first semiconductor distributed Bragg reflector mirror layer, said semiconductor light-emitting layer and said second semiconductor distributed Bragg reflector mirror layer; and a reflector portion provided on an inner wall of a first groove, said first groove being formed by removing portions of said first semiconductor distributed Bragg reflector mirror layer, said semiconductor light-emitting layer and said second semiconductor distributed Bragg reflector mirror layer which lie in a peripheral portion of said first electrode and formed to penetrate through each of said semiconductor light-emitting layer and said second semiconductor distributed Bragg reflector mirror layer and reach said first semiconductor distributed Bragg reflector mirror layer, said reflector portion being formed to reflect a part of light emitted from said semiconductor light-emitting layer into said first groove.