Elpida develops next-generation mobile DRAM product

Nov 18, 2011

Elpida Memory, the third largest Dynamic Random Access Memory (DRAM) manufacturer in the world, today announced that it had developed the industry's first 4-gigabit next-generation mobile memory chips for smart phones, tablet PCs and other mobile devices. The new DRAM achieves compliance with the cutting-edge "Wide IO" international standard for mobile memory and has a data transfer rate that is four times faster than current mobile memory chips. Hence, it supports dramatic improvement in video and audio functionality.

The new Wide IO Mobile RAMTM uses a 30 nanometer (nm) manufacturing process. Sample shipments will begin in December 2011 and is likely to start in 2012. Also, sample shipments of a four-layer 16-gigabit product are scheduled to begin in March next year.

The most important feature of the newly developed DRAM is that it achieves a data transfer rate of 12.8 gigabytes per second (12.8 GB/s) that is four times faster than LPDDR2, the current leading DRAM preference for mobile devices. When compared with LPDDR2 based on equivalent data transfer rates, the new DRAM consumes roughly 50% less power.

Wide IO Mobile RAM has around 1200 interface pins, including 512 I/O (Input/Output) pins, to enable SoC (System on Chip) connections. Through Silicon Via (TSV) technology that can stack together multiple chips in a vertical configuration is necessary to meet the demand for higher . In June this year Elpida began shipments of the industry's first 8-gigabit DRAM (four layers of 2-gigabit DDR3), a product manufactured using TSV technology.

At present Elpida is developing a 16-gigabit DRAM based on stacking four 4-gigabit Wide IO Mobile RAM chips. Compared with existing PoP (Package on Package) products, the 16-gigabit DRAM is expected to be thinner and smaller by using TSV. The current memory package for mobile devices (SoC plus a 4-layer PoP) has a height of 1.4mm. However, Elpida's TSV technology package (SoC plus a 4-layer TSV) has a height of 1.0mm, which makes it about 30% thinner.

By combining its advanced low-power consumption technology with its high-end package technology, Elpida is working to promote Wide IO Mobile RAM as next generation standard choice for mobile applications.

Explore further: X-ray detector on plastic delivers medical imaging performance

add to favorites email to friend print save as pdf

Related Stories

Elpida achieves 4-Layer 0.8mm mobile RAM package

Jun 22, 2011

Elpida Memory today announced that its researchers have developed the technology to mass manufacture a 0.8mm four-layer DRAM package, the thinnest memory device in the DRAM industry.

Elpida Develops Smallest 2-Gigabit DDR2 Mobile RAM

Jul 30, 2010

Elpida Memory, Japan's leading global supplier of Dynamic Random Access Memory (DRAM), today announced that it had developed a 2-gigabit DDR2 Mobile RAM, the DRAM industry's smallest LPDDR2 chip. The new DDR2 is expected ...

Elpida Develops Industry's Smallest 2-Gigabit DDR Mobile RAM

May 14, 2010

Elpida Memory, Japan's leading global supplier of Dynamic Random Access Memory (DRAM), today announced that it had developed a 2-gigabit DDR Mobile RAMTM using a 40nm process. The new Mobile RAM has a chip size of less than ...

Recommended for you

Review: With Galaxy S5, Samsung proves less can be more

2 hours ago

Samsung Electronics Co. has produced the most formidable rival yet to the iPhone 5S: the Galaxy S5. The device, released over the weekend, is the fifth edition of the company's successful line of Galaxy S ...

Chinese tech giant Alibaba set to make a splash with US IPO

2 hours ago

The largest tech IPO of the year will come from a company that many Americans have never heard of. Alibaba Group - a Chinese e-commerce behemoth - has decided to go public in the U.S. after months of speculation that it would ...

User comments : 0

More news stories

Making graphene in your kitchen

Graphene has been touted as a wonder material—the world's thinnest substance, but super-strong. Now scientists say it is so easy to make you could produce some in your kitchen.

Less-schooled whites lose longevity, study finds

Barbara Gentry slowly shifts her heavy frame out of a chair and uses a walker to move the dozen feet to a chair not far from the pool table at the Buford Senior Center. Her hair is white and a cough sometimes interrupts her ...

Easter morning delivery for space station

Space station astronauts got a special Easter treat: a cargo ship full of supplies. The shipment arrived Sunday morning via the SpaceX company's Dragon cargo capsule.