PN-50α is a Non-contact conductivity type (P/N) checker by Napson
Principle: Photovoltaic effect by light pulse irradiation
No damage and no stain by Non-contact method
Possible to check even oxidized film on wafer surface
Instantly discrimination by optical pulse illuminate
Sample sizes
more than 30x30mm
Measuring range
PN Checking range in resistivity : 0.1~1,000Ω・cm
