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)