Used Probe Card Buying Guide: Match, Inspect & Qualify

Before buying a used semiconductor probe card, ask your test engineer to approve the exact card configuration. Compare documented fit and qualification work before comparing purchase prices.

Match the card to your test program

Prepare a compatibility worksheet and ask the seller to return evidence against every line:

• Device: device identifier, pad or bump map, pitch, metallurgy, die layout and intended test temperature.
• Card: manufacturer, complete part number, revision, probe technology, site count and probe layout drawing.
• Tester: tester model, pin map, interface-board identity, connector arrangement and electrical requirements.
• Prober: model, holder or ring drawing, mechanical envelope, alignment requirements and applicable setup files.
• Included scope: card, holder, interface hardware, documentation, fixtures and any agreed service.

Request an engineering review of any difference between the offered card and your qualified configuration. Do not approve a substitute solely because it shares a brand name or wafer diameter.

Inspection and service evidence to request

Ask for labeled, high-resolution photographs of probe tips, the substrate, connectors and interface board. Request repair history, inspection reports, available touchdown counters and the manufacturer's service criteria for that exact card.

For each counter, ask what it measures, when it was reset and whether records cover the current probe assembly. Have the intended service provider review the evidence and quote any rework before making a purchase decision. Avoid converting a counter reading into a remaining-life percentage without a documented method.