CV

CV ramp using Bias SMU and LCR for measurements.

Type: cv

Configuration

• name: (str) name of node.
• enabled: (bool) enabled state. Default is true.
• auto_disable: (bool) auto disable on success. Default is true.
• parameters:
  • hv_channels: (list) list of high voltage channels. Default is [].
  • voltage_begin: (metric) start voltage in Volt (-1000 V to 0 V). Required.
  • voltage_end: (metric) end voltage in Volt (-1000 V to 0 V). Required.
  • voltage_step: (metric) step voltage Volt (-100 V to +100 V). Required.
  • waiting_time: (metric) waiting time in seconds between voltage change and readings. Default is 1 s.
  • compliance: (metric) current compliance for bias source. Required.
  • lcr_amplitude: (metric) LCR amplitude in Volt. Default is 1 V.
  • lcr_frequency: (metric) LCR frequency in Hertz. Default is 1 kHz.

Example configuration

- type: cv
  name: CV
  enabled: true
  auto_disable: true
  parameters:
    hv_channels: [A2, B2, C2]
    voltage_begin: 0 V
    voltage_end: -600 V
    voltage_step: -5 V
    waiting_time: 1 s
    compliance: 25 uA
    lcr_amplitude: 1 V
    lcr_frequency: 1 kHz

Output

Column	Type	Description
timestamp	float	Timestamp in seconds.
temperature	float	Chuck temperature in degree Celcius.
humidity	float	Relative box humidity in percent.
index	int	Index for sorting.
bias_voltage	float	Voltage level applied in Volt.
bias_smu_v	float	Voltage reading in Volt.
bias_smu_i	float	Current redaing in Ampere.
lcr_cp	float	CP reading in Farad.
lcr_rp	float	RP reading in Ohm.