Elpida today announced volume production of its 512
Megabit-based 2 Gigabyte DDR2 registered dual in-line memory modules (DIMMs).
The 2 Gigabyte modules are the highest density available for the server market,
and they offer high-speed performance with a data transfer rate of 4.3 Gigabytes
per second (PC2-4300). Elpida’s newly developed stacked BGA (sBGA) technology
creates a slim module (4.8 millimeter thickness) that increases air flow space
between modules, thus improving thermal performance and reliability for server
applications.

Elpida Memory, Inc (Elpida) today announced volume production
of its 512 Megabit-based 2 Gigabyte DDR2 registered dual in-line memory modules
(DIMMs). The 2 Gigabyte modules are the highest density available for the server
market, and they offer high-speed performance with a data transfer rate of 4.3
Gigabytes per second (PC2-4300). Elpida’s newly developed stacked BGA (sBGA)
technology creates a slim module (4.8 millimeter thickness) that increases air
flow space between modules, thus improving thermal performance and reliability
for server applications.

"Elpida’s 2 Gigabyte DDR2 DIMMs combine the industry’s highest density modules
with the maximum system performance available in the server market," said Jun
Kitano, director of Technical Marketing at Elpida Memory (USA). "Our new sBGA
stacking technology allows component testing to occur prior to stacking,
resulting in improved module production and better yields. Elpida’s ability to
enhance production capability on high-density, high-performance modules
demonstrates our readiness to meet customer demands for DDR2 DIMMs in volume
quantities."

2 Gigabyte DDR2 DIMM Features
Elpida’s new DIMMs (Part numbers: EBE21RD4ABHA-xx) are based on Elpida’s 512
Megabit DDR2 SDRAM devices that operate up to 533 Megabits per second (Mbps).
The modules are organized as 256M words x 72-bits x 2 ranks, and they contain
thirty-six 0.11 micron, 512 Megabit DDR2 devices that are stacked and mounted on
the DIMMs using Elpida’s unique sBGA stacking technology. The mounted devices
have a CAS latency (CL) of 3, 4, 5 with a burst length of 4, 8. The standard
240-pin DIMMs have a JEDEC-compliant outline with a slim thickness of 4.8 mm,
and they support Error Checking and Correction (ECC) necessary for high-end
server applications. The modules also offer 1.8V operation – one-half the power
consumption over DDR.

The 2 Gigabyte DDR2 registered DIMM is part of Elpida’s comprehensive DDR2
product portfolio that also includes 512 Megabyte and 1 Gigabyte densities.