ClassID:

216102

H01S5/321 - CPC Classification

Classification description:

Semiconductor lasers; Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures having intermediate bandgap layers

Recent Application in this class:
#1
20250239836
2025-07-24

NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT

#2
20240405514
2024-12-05

SEMICONDUCTOR OPTICAL ELEMENT, MEASUREMENT DEVICE AND LIGHT SOURCE DEVICE USING SEMICONDUCTOR OPTICAL ELEMENT, AND METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL ELEMENT

#3
20230187567
2023-06-15

Optoelectronic device comprising a semiconductor layer based on GeSn having a single-crystal portion with a direct band structure and an underlying barrier region

#4
20210376571
2021-12-02

Semiconductor device, semiconductor laser, and method of producing a semiconductor device

#5
20190393679
2019-12-26

Semiconductor device, semiconductor laser, and method of producing a semiconductor device

#6
20190005858
2019-01-03

Semiconductor light-emitting device, display unit, and electronic apparatus

#7
20150311677
2015-10-29

Semiconductor device

#8
20140209156
2014-07-31

BIPOLAR DIODE HAVING AN OPTICAL QUANTUM STRUCTURE ABSORBER

#9
20140146837
2014-05-29

Semiconductor laser

#10
20140029636
2014-01-30

Semiconductor light emitting device

#11
20090010290
2009-01-08

Semiconductor chip having a reduced band offset in its p-doped region and method for producing the semiconductor chip

#12
20080095492
2008-04-24

Semiconductor optoelectronic device and method of fabricating the same

#13
20070272915
2007-11-29

Nitride semiconductor with active layer of quantum well structure with indium-containing nitride semiconductor

#14
20070195846
2007-08-23

Semiconductor laser and process for manufacturing the same

#15
20050167836
2005-08-04

Detailed description of the presently preferred embodiments

#16
20050167835
2005-08-04

Nitride semiconductor laser

#17
20050163178
2005-07-28

Semiconductor laser device

#18
19416039
2026-05-05

Perovskite-based white or multi-wavelength laser