X-bit labs

Intel, STMicroelectronics Start Sampling Phase Change Memory.

Category: Memory

by Anton Shilov

[ 02/06/2008 | 11:43 PM ]

Intel Corp. and STMicroelectronics on Wednesday announced that they have begun shipping samples of Phase Change Memory (PCM) chips to undisclosed customers. The prototypes are the first functional silicon to be delivered to customers for evaluation, bringing the technology one step closer to adoption.

The memory device, code-named “Alverstone” uses PCM, a promising new memory technology providing very fast read and write speeds at lower power than conventional flash, and allows for bit alterability normally seen in random access memory (RAM). PCM has long been a topic of discussion for research and development, and with Alverstone, Intel and STMicroelectronics are helping to move the technology into the marketplace.

Alverstone is a 128Mb device built on 90nm and is intended to allow memory customers to evaluate PCM features, allowing cellular and embedded customers to learn more about PCM and how it can be incorporated into their future system designs.

“This is the most significant non-volatile memory advancement in 40 years. There have been plenty of attempts to find and develop new non-volatile memory technologies, yet of all the concepts, PCM provides the most compelling solution – and Intel and STMicroelectronics are delivering PCM into the hands of customers today,” said Ed Doller, chief technology officer-designate of Numonyx, the new name for the pending STMicroelectronics and Intel flash memory company.

In 2003, Intel and STMicroelectronics formed a joint development program (JDP) to focus on Phase Change Memory development. Previously the JDP demonstrated 8Mb memory arrays on 180nm at the 2004 VLSI conference and first disclosed the Alverstone 90nm 128Mbit memory device at the 2006 VLSI Symposium. Alverstone and future JDP products will become part of Numonyx, a new independent semiconductor company created through an agreement between STMicroelectronics, Intel and Francisco Partners signed in May 2007. The new company’s strategic focus will be on supplying complete memory solutions for a variety of consumer and industrial devices, including cellular phones, MP3 players, digital cameras, computers and other high-tech equipment. The companies are scheduled to close the transaction in the first quarter of 2008.

In related news, Intel and STMicroelectronics technologists presented a research paper this week at the International Solid States Circuits Conference (ISSCC) describing yet another breakthrough in PCM technology. Together, the companies created the world’s first demonstrable high-density, multi-level cell (MLC) large memory device using PCM technology. The move from single bit per cell to MLC also brings significantly higher density at a lower cost per MB making the combination of MLC and PCM a powerful development.