Top IPC subclasses
1
|
H01L
|
5
|
Semiconductor devices; electric solid state devices not otherwise provided for
|
2
|
B82B
|
1
|
nano-structuresmanufacture or treatment thereof
|
3
|
G01R
|
1
|
Measuring electric variables; measuring magnetic variables
|
4
|
H01H
|
1
|
electric switchesrelaysselectorsemergency protective devices
|
5
|
C30B
|
1
|
single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing o
|