Sensor Cleavage
Maintainer: Milou Van Rijnbach, Matthias Saimpert, Jon Taylor
🧠Overview
This section focuses on sensor cleavage, providing reminders, key references, and definitions relevant to module assembly and testing.
⚡ Soft Breakdown Definition
Placeholder: Definition of soft breakdown to be provided (needs approval)
🛡️ Reminder about Parylene Unmasking Recommendations
Since several sensor cleavages have appeared after parylene operations, consistently along a line orthogonal to the connector axis, we suspect that mechanical stress applied during unmasking—particularly when removing the power connector mask—may be the cause.
Videos of unmasking procedures:CERNbox
See presentation here for more details, in particular slide 12: Parylene tooling II
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Last update:
2025-11-27