Peripheral devices store data in non-volatile phase-change memory (PCM). PCM cells have alloy resistors with high-resistance amorphous states and low-resistance crystalline states. The peripheral device can be a Serial AT-Attachment (SATA) or integrated device electronics (IDE) PCM solid-state disk or...http://www.google.fr/patents/US7966429?utm_source=gb-gplus-shareBrevet US7966429 - Peripheral devices using phase-change memory