NanoTest VCSEL

NanoTest VCSEL measures VCSEL on wafer level or Chip on Carrier regarding their optical and electrical characteristics. The tester accommodates wafers with a diameter of up to 6 inches (150 mm), as an option also larger diameters can be integrated. A special interface mounted to the chuck also allows for testing Chip on Carrier devices.A high-precision motion system with XYZ and rotary adjustment brings the wafer chuck in the respective measurement position. First, electrical contacting takes place supported by a sideview camera. A high-precision current source delivers the operating current for the VCSEL under test.