Devices Using The Process Of Light Amplification By Stimulated Emission Of Radiation [laser] To Amplify Or Generate Light; Devices Using Stimulated Emission Of Electromagnetic Radiation In Wave Ranges Other Than Optical
H01L
Semiconductor Devices; Electric Solid State Devices Not Otherwise Provided For
H05K
Printed Circuits; Casings Or Constructional Details Of Electric Apparatus; Manufacture Of Assemblages Of Electrical Components