Home Environmental & Cryogenic Probe Station EverBeing CG-196 Cryogenic Probe Station

EverBeing CG-196 Cryogenic Probe Station

Product Code:
CG-196
Manufacturer: EverBeing

The EverBeing CG-196 Cryogenics Probe Station allows probing at cryogenics temperature where the wafer needs to be inside a vacuum chamber.

The Everbeing controlled environment probe station allows vacuum and cryogenic probing down to 77K with liquid nitrogen or high-temperature probing up to 1273K. Efficient in characterizing your devices at extreme temperatures, vacuum, specific gas, etc.

  • Temperature 80K to 480K (-190°C to +205°C)
  • Vacuum chamber with NW25 ports – max 6 ports DC & RF
  • 10 µm resolution micropositioners
  • LD 50 L Dewar Liquid Nitrogen Tank
  • Vacuum pump for environment of 10^-3 torr (pump can be upgraded for 10^-6)
  • Cold Head Module for CG-196 fitted with 40 mm Solid Chuck

 

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When probing at cryogenics temperature the wafer needs to be inside a vacuum chamber. The Everbeing CG-196 can handle high temperatures of 400, 500, 600 & 700°C in the vacuum chamber.

EverBeing Vacuum Environment Probing

There are two main probing applicaions that require a vacuum environment:

Cryogenics:
If a wafer is probed at a cryogenic temperature, some moisture will appear and freeze onto the wafer. This moisture will result in leakage currents, and therefore potentially false measurements.The moisture in the chamber is removed by the vacuum pump, the pump has to be kept running at all times during the measurement.

High Temperature, Oxygen-Free:
When a wafer is heated up to more than 300, 400, 500°C, oxidation will occur on the wafer. The higher the temperature, the more the wafer surface will oxidese.The oxidation will make the wafer degrade electrically, physically & mechanically. The oxygen in the chamber is removed by the vacuum pump, the pump has to be kept running at all times during the measurement.

Since the chuck is controlled thermally in these applications, both for cryogenics and high temperature, the probed tip on the wafer will shift somewhat 
by the wafer shrinkage and expansion. As a result, some of the tips have to be re-positioned by the micropositioner with the control knobs X-Y-Z on the ouside of the vacuum chamber. Alternatively, motorized micropositioners with a joystick control panel can re-position the tip inside the chamber easily.

 

 

Temperature Range: 77°K ~ 480°K
Micropositioner: 4~6 sets
Wide working distance
Sub-micron resolution

Microscope sliding X-Y Stage

Monozoom Microscope 80-1050x magnification
Vacuum Pump: 10^-3 (standard) with vacuum sensor
Temperature Controller - Lakeshore Model 336
Thermo-couple @ certain position & Thermo-meter
Liquid Nitrogen Dewar 50ltr
Include connecting for liquid-nitrogen & nitrogen gas
Dimensions (mm) 1200(W) x 900(D) x 1050(H)
Weight 300KG

 

 

 

 

 

 

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