While electrostatic chucks offer many advantages, several challenges must be addressed to ensure optimal performance:
| Challenge | Description | Solution |
|---|---|---|
| Holding Force Degradation | Electrode aging or surface contamination reduces adhesion over time. | Plasma cleaning, regular surface treatment, and maintenance. |
| Electrostatic Discharge (ESD) Risk | High voltage may cause discharge, damaging wafers or equipment. | Multi-layer insulation, ESD suppression circuits. |
| Temperature Non-uniformity | Uneven cooling or ceramic thermal conductivity causes process inconsistencies. | Use high thermal conductivity ceramics (AlN), precise He pressure control. |
| Deposition Contamination | Process residues accumulate, degrading adsorption capability. | In-situ plasma cleaning, routine maintenance after set wafer counts. |
