Why the Infineon Controller Is Critical for PL6 Testing:
1. PL6 is a full array-level chip, not just a single memory cell test.
→ Without the controller, 4DS can't test how the memory behaves under realistic read/write operations at scale.
2. The controller handles timing, voltages, and error margins, all of which are crucial to:
Verify if the ReRAM cells can switch reliably
Test endurance (how many cycles they survive)
Measure retention (how long data stays)
Observe disturb effects and other real-world usage patterns
3. Generic or previous-generation controllers won’t work
→ 4DS's unique ReRAM cell needs custom handling due to its switching behavior, which Infineon's controller is designed for.
4. Investor updates confirm this:
In 4DS’s own words:
> “The controller is essential to accurately test and characterize the memory performance of PL6 arrays.”
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Bottom Line:
> Without the Infineon controller, 4DS cannot complete full functional testing of PL6.
(20min delay)