Electrostatic Chuck: Refurb vs Replace Decision Guide
Refurbish or replace an electrostatic chuck? Match the part and revision, request a repair assessment, and agree test criteria before buying.
Choose between electrostatic chuck refurbishment, a used replacement, and a new replacement only after reviewing the exact assembly, failure evidence, and process requirements. Start with a written assessment—not a promised savings percentage or a universal leak-rate cutoff.
Match the ESC before comparing options
Record the full part number, revision, serial number, tool and chamber configuration, wafer requirements, and installed interfaces. Photograph the label, contact surface, connectors, and any visible damage. Ask your engineer to confirm the required electrical, thermal, mechanical, and process specifications.
Require documented approval for any proposed substitute or revision change. Do not infer interchangeability from the tool family or the appearance of the chuck.
Refurbish, buy used, or buy new?
Use the following decision process with your engineering and procurement teams. These are proposed purchase conditions, not guarantees of repairability or service life.
| Option | Evidence to request before authorizing it |
|---|---|
| Refurbish your assembly | Written diagnosis, proposed work scope, exclusions, a post-work test plan, and terms if the assembly is judged unrepairable. |
| Buy a used replacement | Exact identity and revision, condition and repair history, a dated test report, and agreed return or acceptance terms. |
| Buy a new replacement | Confirmed part match, included documentation, warranty scope, and written commercial and delivery terms. |
Ask the assessor to distinguish observed damage from suspected root causes and to explain how the proposed work will be verified. Escalate unresolved damage or compatibility questions before authorizing installation.
For inspection planning, review the electrostatic chuck inspection checklist. For replacement inquiries, use the ESC buying guide and AMAT electrostatic chuck page; neither establishes a match to your assembly.
Define acceptance criteria before work starts
Have your engineer and the service provider agree which checks apply to the assembly: identity and dimensions, surface condition, electrical behavior, leak testing, and thermal performance. For each agreed check, record the procedure, test conditions, measurement units, instrument calibration, and pass/fail limits from the applicable specification.
Request before-and-after results tied to the same serial number. Decide who will approve the report, how installation qualification will be handled, and what remedy applies if the assembly does not meet the agreed criteria.
Compare the complete written proposals
Ask for separate costs for assessment, repair or replacement, testing, shipping, and any installation or qualification work. Include the consequences of an unsuccessful repair attempt in your internal decision model using your own site data. Request explicit warranty exclusions and proposed delivery dates rather than assuming them from the condition label.
Request an ESC review with the part number and revision, label photos, fault description, available test records, and the decision deadline. Ask for a documented assessment and scope before agreeing to a purchase or repair.
Related Parts
Caladan stocks used and refurbished parts referenced in this article — tested, inspected, and ready to ship.