IV Ramp 4-Wire

IV ramp using V Source for ramp and measurements.

Type: iv_ramp_4_wire

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.
`current_start`	`ampere`	required	Start current for V Source ramp. (`-250 mA` to `250 mA`).
`current_stop`	`ampere`	required	End current for V Source ramp. (`-250 mA` to `250 mA`).
`current_step`	`ampere`	required	Step current for V Source ramp (`1 nA` to `250 mA`).
`waiting_time`	`second`	`1 s`	Additional delay between ramp steps (`0 ms` to `3600 s`).
`current_step_before`	`ampere`	`current_step`
`waiting_time_before`	`second`	`100 ms`
`current_step_after`	`ampere`	`current_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.
`vsrc_current_compliance`	`volt`	required	V Source current compliance (`1 mV` to `1000 V`).
`vsrc_accept_compliance`	`bool`	`false`	Stop measurement gracefully if V Source compliance tripped.
`vsrc_sense_mode`	`str`	`local`	V Source sense mode. Possible values are: `local`, `remote`.
`vsrc_route_terminal`	`str`	`rear`	V Source route terminal. Possible values are: `front`, `rear`.
`vsrc_filter_enable`	`bool`	`false`	Enable V Source filter.
`vsrc_filter_count`	`int`	`10`	V Source filter count (`1` to `100`).
`vsrc_filter_type`	`str`	`repeat`	Type of applied V Source filter. Possible values are: `moving`, `repeat`.
`vsrc_source_voltage_autorange_enable`	`bool`	`true`	Enable source voltage auto range.
`vsrc_source_voltage_range`	`volt`	`20 V`	Set source voltage range. (`-1 kV` to `1 kV`).
`analysis_functions`	`list`	`[]`	List of applied analysis functions. Possible values are: `iv`, `van_der_pauw`, `cross`, `linewidth`, `cbkr`, `contact`, `meander`, `breakdown`. See also Analysis Functions page.

Data columns

Column	Type	Description
`timestamp`	`second`	Time offset in seconds.
`current`	`ampere`	Current assigned to V source.
`voltage_vsrc`	`volt`	Voltage reading of V source.
`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: 4wire_example
  name: IV 4-Wire Example
  type: iv_ramp_4_wire
  enabled: true
  description: An example measurement.
  parameters:
      matrix_channels: [2D12, 2E09, 2F10, 2G11]
      current_start: -10 uA
      current_stop: 10 uA
      current_step: 500 nA
      waiting_time: 500 ms
      vsrc_voltage_compliance: 20 V
      vsrc_sense_mode: remote
      vsrc_filter_enable: false
      vsrc_filter_count: 10
      vsrc_filter_type: repeat
      analysis_functions: [iv, van_der_pauw]