242 - Characterization Lab 1

Temperature Controller

Monitors and controls two separate temperature locations. Can support nearly any diode, RTD, or thermocouple temperature sensor. Two independent PID control loops with heater outputs of 25 W and 2 W are configured to drive either a 50 Ω or 25 Ω load for optimal cryocooler control flexibility.

Resistivity Test Fixture

Measure volume resistivity up to 10^18 Ω-cm or surface resistivity up to 10 Ω. The test fixture is designed using a three-lug triaxial connector that allows simple connection to a Keithley Electrometer. This measurements will show how much is an insulating material’s resistance to leakage current through its body and surface.

Gear Box Motor

Delivers high torque at low horsepower or low speed. Used for small applications in the lab requiring torque and reducing speed. (vague definition/could not really understand what it does)

Universal Probe Station

Two main applications. First, a four-point sheet resistance measurement of a thin layer or substrate which is used in nanofabrication to measure the resistive properties of conducting films. Second, a three-point spreading resistance measurements to analyze resistivity versus depth in semiconductors. The tool is used primarily for determining doping structures in silicon semiconductors

LCR Hi - Tester

Measures frequency from DC with a range of 42 Hz to 5 MHz. With features such as the ability to display four parameters out of the possible fourteen at a time, show upper and lower limits, and memory for thirty sets of measurement conditions, among others. For repetitive tests, measurements can be saved to internal memory and called up in the future

Sourcemeter

Capable of generating currents and voltages and simultaneously measuring them with high accuracy. Combines a precision direct current (DC) power supply, a power source, a digital multimeter and an electronic load in the same unit. Common applications include current-voltage (I-V) characterization of silicon carbide (SiC) and gallium nitride (GaN) semiconductor circuits, batteries, photovoltaic cells, LEDs, DC-DC converters, power MOSFET circuits, lighting systems, and other non-linear components.