phase change memory Last modified: Tuesday, April 08, 2008
Abbreviated as PCM, phase change memory is a type of non-volatile memory that is much faster than the common flash memory, from 500 to 1,000 times faster, and it also uses up to one half the power. Phase change memory uses a semiconductor alloy that can be changed rapidly between an ordered, crystalline phase having lower electrical resistance to a disordered, amorphous phase with much higher electrical resistance. Because no electrical power is required to maintain either phase of the material, so phase-change memory is non-volatile.
•E-mail this definition to a colleague• For internet.com pages about phase change memory . Also check out the following links! Ultra-Thin Phase-Change Bridge Memory Device Using GeSb (PDF)  Phase-Change Memory (PCM) has been the subject of considerable recent interest as a potential next-generation non-volatile solid-state memory technology. Webopedia's "Did You Know...?" Section  Use this Webopedia knowledge section for an in-depth overview of specific technologies and occurrences in the areas of Computer Science, The Internet, and Computer Hardware and Software. Webopedia's Quick Reference Section  Use this Webopedia reference section for information on common Internet and computer facts and occurrences.	Memory flash drive flash memory memory non-volatile memory semiconductor Give Us Your Feedback Books phase change memory Products Shop by Top Models: Gordon Bell and Jim Gemmell - Total Recall: How the E-memory Revolution Will Change Everything 4 store offers from $12 - $17 Ann Louise Gittleman - Before the Change: Taking Charge of Your Perimenopause 2 store offers from $5.99 - $10.19