• All sections
• H - Electricity
• H01L - Semiconductor devices not covered by class
• H01L 21/449 - Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups involving the application of mechanical vibrations, e.g. ultrasonic vibrations

Patent holdings for IPC class H01L 21/449

Total number of patents in this class: 15

10-year publication summary

Principal owners for this class