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Cassini is designed for constant (100% 24x7x364) use in a production environment and requires only a minimum amount of scheduled downtime to maintain performance. These guidelines can be adjusted based on your risk threshold and operating environment, extending the time between planned processes (activities below) when used in a lab setting, very low volume production, or a thermally stable (+- 5° C) and "class 3+ cleanroom" test floor. The frequency and details of the procedures listed in the Preventive Maintenance Schedule can be adapted to your needs. For example, if you are changing Fixtures daily, you may want to inspect the connectors between the Fixture and Handler more frequently. Calibrations can be safely postponed if the system is in a thermally stable environment where the ambient temperature does not vary by more than 5° C.



RI Recommended Preventive Maintenance Schedule Summary

Process1
Daily
Monthly
Quarterly
Yearly
As Needed2
Socket
Socket MFG Suggested
DUT Interface Board (DIB)
>10% Yield Changes
Test Head TIM Ports
1k Fixture Docks
Fixture Inserts @ DIB
1k DIB Installs
Docking Hardware
1K Docks+
Handler POD to Test Head RIFL Cable (damage)
If Frequent Handler Changes
Diagnose/Verify
Yield Drops,
Debug
TIM/System Calibrations
TIM Swap
AUX Rack only: RF Cables
TIM Swap
Fixture Calibrations
Modification
or Damage

1 Process: Inspect for damage or wear, Clean or Replace as needed.
2 As Needed: The procedure should completed either by the time period or approximately by the frequency of events listed in this column, whichever occurs first.

RI Recommended Preventive Maintenance Schedule Details

Process1 (same as above)
Est. Time To Complete
Role/Login
Tools Needed3
Contact RI Support
Socket
1-2 minutes
Operator
Standard Tools
DUT Interface Board (DIB)
10 min
Maintenance
Standard Tools, Volt Meter, Magnifier
Test Head TIM Ports
2 min
Operator
Standard Tools
Fixture Inserts @ DIB
1 min
Operator
Standard Tools
Docking Hardware
30 sec.
Operator
If wear found
Handler POD to Test Head RIFL Cable
1 min
Operator
Diagnose/Verify
1-5 min (Selective)
1 hour (Complete)
Maintenance
Diag/Cal Plate, Power Meter
TIM/System Calibrations
10 mins-2 hrs (Selective)
4-6 hrs (Complete)
Maintenance
Diag/Cal Plate, Full Cal. Kit
AUX Rack only: RF Cables
2 min
Maintenance
AUX Rack
Fixture Calibrations
Varies (Minutes to 1-2 Hrs)
Designer
OSL Cal DIBs

1 Process: Inspect for damage or wear, Clean or Replace as needed. Diagnose/Verify and Calibrations are "Run".
3 Tools Needed:
Standard Tools = Pressurized Air, Cotton Swabs, Tweezers, Alcohol
Diag/Cal Plate = Provided with System (can be shared with systems with identical TIM configurations)
Full Calibration Kit = Onsite or RI Provided (during PMC visit)

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