CV Ramp (HV Source)

CV ramp using HV Source and LCR for CpRp measurements.

Type: cv_ramp

Parameters

Parameter	Type	Default	Description
`matrix_enable`	`bool`	`true`	Enable matrix configuration.
`matrix_channels`	`list`	`[]`	List of matrix channels to be closed. All matrix slots can be addressed.
`bias_voltage_start`	`volt`	required
`bias_voltage_step`	`volt`	required
`bias_voltage_stop`	`volt`	required
`waiting_time`	`second`	`1 s`	Additional delay between ramp steps (`0 ms` to `3600 s`).
`bias_voltage_step_before`	`volt`	`bias_voltage_step`
`waiting_time_before`	`second`	`100 ms`
`bias_voltage_step_after`	`volt`	`bias_voltage_step`
`waiting_time_after`	`second`	`100 ms`
`waiting_time_start`	`second`	`0 s`	Additional delay before starting with measurement ramp.
`waiting_time_end`	`second`	`0 s`	Additional delay after final ramp down.
`hvsrc_current_compliance`	`ampere`	`1 uA`
`hvsrc_accept_compliance`	`bool`	`false`	Stop measurement gracefully if HV Source compliance tripped.
`hvsrc_route_terminal`	`str`	`rear`
`hvsrc_sense_mode`	`str`	`local`	Possible values are: `local`, `remote`.
`hvsrc_filter_enable`	`bool`	`false`
`hvsrc_filter_count`	`int`	`10`
`hvsrc_filter_type`	`str`	`repeat`	Possible values are: `moving`, `repeat`.
`hvsrc_source_voltage_autorange_enable`	`bool`	`true`	Enable source voltage auto range.
`hvsrc_source_voltage_range`	`volt`	`20 V`	Set source voltage range. (`-1 kV` to `1 kV`).
`lcr_soft_filter`	`bool`	`true`	Apply software STD/mean<0.005 filter.
`lcr_frequency`	`herz`	`1 kHz`	Possible range from `1 Hz` to `25 kHz`.
`lcr_amplitude`	`volt`	`250 mV`
`lcr_integration_time`	`str`	`medium`	Possible values are: `short`, `medium`, `long`.
`lcr_averaging_rate`	`int`	`1`	Possible range from `1` to `10`.
`lcr_auto_level_control`	`bool`	`true`
`lcr_open_correction_mode`	`str`	`single`	Possible values are: `single`, `multi`.
`lcr_open_correction_channel`	`int`	`0`	Possible range from `0` to `127`.
`analysis_functions`	`list`	`[]`	List of applied analysis functions. Possible values are: `cv`, `mos`, `capacitor`. See also Analysis Functions page.

Data columns

Column	Type	Description
`timestamp`	`second`	Time offset in seconds.
`voltage_hvsrc`	`volt`	Voltage assigned to HV source.
`current_hvsrc`	`ampere`	Current reading of HV source.
`capacitance`	`farad`	First value of Cp reading of LCR.
`capacitance2`	`float`	Second value of Cp reading of LCR.
`resistance`	`ohm`	Resistance reading of LCR.
`temperature_box`	`degC`	Box temperature in degree Celcius.
`temperature_chuck`	`degC`	Chuck temperature in degree Celcius.
`humidity_box`	`percent`	Relative box humidity in percent.

Example configuration

- id: cv_example
  name: CV Example
  type: cv_ramp
  enabled: true
  description: An example measurement.
  parameters:
      matrix_channels: [1A01, 1B02, 2H11, 2G12]
      bias_voltage_start: -5 V
      bias_voltage_stop: 10 V
      bias_voltage_step: 0.1 V
      waiting_time: 100 ms
      hvsrc_current_compliance: 100 uA
      hvsrc_route_terminal: rear
      hvsrc_sense_mode: local
      hvsrc_filter_enable: false
      hvsrc_filter_count: 10
      hvsrc_filter_type: moving
      lcr_soft_filter: true
      lcr_frequency: 10 kHz
      lcr_amplitude: 250 mV
      lcr_integration_time: medium
      lcr_averaging_rate: 1
      lcr_auto_level_control: true
      lcr_open_correction_mode: multi
      lcr_open_correction_channel: 8
      analysis_functions: [cv]