PWS Semiconductor / Analog IV Tester Specifications

SMU CARD ELECTRICAL SPECIFICATIONS

The information and "typical" entries in the following specifications are not warrented, but provide useful information about the functions and performances of PWS SMU Cards.

 

 

Parameter

Set Range

Step Size

Meas Resolution

Comments

SMU 1-3          

VForce Mode

VOUT

+/- 10V

312.5mV

   
 

IMEAS

100mA,10mA,1mA 100uA,10uA,1uA,  100nA,10nA

Full Scale Range (F.S.R.)

 

0.1% F.S.R. with 20 pA minimum

Range is selectable or can be auto-ranged

 

ILIM

100mA,1mA, 10uA,100nA

Full Scale Range (F.S.R.)

0.1% F.S.R.

 

IForce Mode

IOUT

100mA,10mA,1mA, 100uA,10uA,1uA, 100nA,10nA

Full Scale Range (F.S.R.)

0.05% F.S.R.

Range is selectable or can be auto-ranged

 

VMEAS

+/- 10V,  +/- 1V (F.S.R.)

 

0.01% F.S.R

Range is auto-selected

 

VLIM

+/- 10V (F.S.R.)

1% F.S.R    

SMU 4

         

VForce Mode

VOUT

+/- 100V

3.2mV

   
 

IMEAS

100mA,10mA,1mA, 100uA,10uA,1uA, 100nA,10nA

Full Scale Range (F.S.R.)

 

0.1% F.S.R. with 20 pA minimum

Range is selectable or can be auto-ranged

 

ILIM

100mA,1mA, 10u, 100nA

Full Scale Range (F.S.R.)

0.1% F.S.R.

 

IForce Mode

IOUT

10mA,1mA, 100uA,10uA,1uA, 100nA,10nA

Full Scale Range (F.S.R.)

0.1% F.S.R.

Range is selectable or can be auto-ranged

 

VMEAS

+/- 100V,  +/- 10V (F.S.R.)

 

0.1% F.S.R.

Range is auto-selected

 

VLIM

+/- 100V (F.S.R.)

1% F.S.R.

 

VOUT

+/- 16V

500mV

  ILim fixed at 100mA

VSource 1-2

VMEAS

+/- 16V

  1mA.

 

OPERATION MODES

PWS has three opeating modes independently selectable for each SMU.

DC: Bias conditions are asserted, measurement values are sampled after a settling time.  Biases remain until re-programmed. (Settling time is automatically determined unless "Pulse" or "Servo" modes are used on other SMUs). PULSE: 'Rest' and 'Pulse-To' values are seperately programmed.  For each reading the 'Pulse-To' values are asserted for a programmed "Soak/ Servo"  time, and measured values are sampled at the end of this time.  Biases return to rest conditions. TSoak/Servo - 10 us to 100 ms SERVO: 'Rest' values are seperately programmed.  During the "Soak/Servo" interval the SMU is driven to achieve a programmed measurement condition on a seperate SMU (e.g. Gate voltage servoed to achieve a desired Drain current on a FET).

 

MEASUREMENT MODES

PWS has three measurement modes.

DISCRETE: Single measurement taken.  Can use DC, PULSE or SERVO operating modes. SWEEP: Measurement values taken over a programmed range.  Can use DC, PULSE or SERVO operating modes. STEPPED-SWEEP: Sweep is performed multiple times while bias conditions of a programmed value is stepped.  Can use DC, PULSE or SERVO operating modes.

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