Used Ion Implanter Buying Guide: Checks Before You Buy
Buying a used ion implanter? Match the process, review source and beamline records, and define acceptance tests before requesting a quote.
Start with the implant process, not the asking price
Before shortlisting a used ion implanter, write down the recipes you need to qualify and the evidence you will require from the seller. Use the same requirements sheet for every offer; leave undocumented capabilities marked as unconfirmed.
Ask your process team to specify ion species, energy and dose requirements, wafer material and size, implant angle, temperature requirements and the intended production workload. Request a configuration record tied to the offered tool's serial number rather than accepting a family-level brochure as proof of its installed options.
Compare Varian, Axcelis and Applied Materials offers
For background, see the Varian and Axcelis comparison guide. Make the purchase decision against the specific machine's documentation and demonstration results, not a brand ranking.
As a documented example, Applied Materials identifies the Varian VIISta 900 3D as a medium-current implanter and describes integrated hot-implant capability as optional. Ask the seller to identify which options are actually installed on any proposed system.
Compare the offers against these requirements:
- Process coverage: request the configuration sheet and an agreed-recipe demonstration; record each requirement as met, failed or unconfirmed.
- Wafer handling: request end-station details and a witnessed handling run; record the approved wafer/carrier configuration.
- Controls: request the software version, option list and written transfer terms; record included licenses and unresolved restrictions.
- Support: request a named service provider and written scope; assign installation and qualification responsibility.
- Condition: request maintenance history and recent test records; record repairs required before acceptance.
Inspect the source, power supplies and beamline
Ask for the ion source's maintenance history, the dates and scope of rebuilds, and any recorded operating hours. Have a qualified service provider interpret those records against the installed source's documentation; do not use a generic hour threshold to approve or reject it.
Request high-voltage service reports, fault history and an approved demonstration plan. Use the ion implanter power-supply guide to organize questions for the service provider. Require tool-specific test procedures before any energized inspection.
For the beamline and end station, request calibration records, dose and uniformity results, handling-error logs, and evidence of checks on vacuum, gas delivery and interlocks. Ask for test dates, conditions and the serial number of the tool tested.
Agree on factory and site acceptance criteria
Make acceptance a written attachment to the purchase agreement. Have the responsible process engineer define the test methods and numerical limits for the intended application.
- Before shipment: agree on witness access, representative recipes, sample wafers, run duration and the raw data to be delivered.
- Performance: define the required dose accuracy, repeatability, uniformity, implant-angle checks and contamination checks for those recipes.
- Handling and utilities: specify the handling demonstration and the facility, vacuum and interlock checks required by the approved procedure.
- After installation: agree on which tests must be repeated, who supplies metrology and who signs the acceptance report.
- Failure remedy: document repair responsibility, retest arrangements and rejection or return terms before payment.
Request an itemized installed-cost quote
Ask suppliers to separate the tool price from inspection, agreed repairs, deinstallation, packing, transport, installation, training, initial spares and process qualification. Request written exclusions, payment milestones and delivery terms. Compare offers on that common scope.
Prepare your RFQ
If your requirements call for that category, start an inquiry from the high-current ion implanter page. Include the process requirements sheet, preferred models, facility constraints and acceptance plan in your quote request. Ask for current availability and the exact offered configuration; do not treat a category page as an inventory confirmation.
Related Parts
Caladan stocks used and refurbished parts referenced in this article — tested, inspected, and ready to ship.