How memory components are refurbished: inspection, reballing and testing
- A responsible process starts with incoming inspection and identity verification, not with cleaning.
- Electrical testing is what separates a refurbished part from a merely relabeled one.
- Every step should leave a record that links the part to a lot.
What are the steps of memory refurbishment?
Processes differ between suppliers, but a responsible workflow generally follows this order.
1. Incoming inspection and identification
Parts are checked visually under magnification for markings, package condition and signs of rework, and compared with manufacturer part-number information. Parts that do not match are rejected before any further work.
2. Cleaning and restoration
Packages are cleaned and, for BGA devices that need it, solder balls may be restored (reballed) using controlled temperature profiles. Heat exposure is limited because it can damage a device.
3. Electrical and functional testing
Devices are tested on suitable test equipment for opens and shorts, basic read and write operation and, where the device type allows, speed and application-level checks. Failed parts are separated and not sold as good stock.
4. Marking, packaging and traceability
Accepted parts receive a lot identifier, are packed in ESD-safe packaging and, for moisture-sensitive packages, handled according to JEDEC J-STD-020 and J-STD-033 practice. Records link each lot to its inspection and test results.
What should buyers remember?
Ask the supplier which of these steps it performs itself and which are outsourced, and request the matching documents.
Sources and further reading
External pages written by the standards bodies and manufacturers named here. AURCAL is not affiliated with them. Links last checked 1 November 2026.
- IEC: IECQ 080000 hazardous substance process management requirements – The standard behind the IECQ QC 080000 certificate.
- JEDEC Solid State Technology Association – The standards body for microelectronics, including DRAM and flash memory.