Elpida Memory, Inc., Japan's leading global supplier of Dynamic Random Access Memory (DRAM), today announced the DRAM industry's first-ever use of high-k metal gate (HKMG) technology to develop a 2-gigabit DDR2 Mobile RAM (LPDDR2) at the 40nm-class DRAM node.
HKMG is technology that uses insulator film with a high dielectric constant (abbreviated to "high-k," a semiconductor industry measure of how much charge a material can hold) in the transistor gate to reduce current leakage and improve transistor performance. Metal gate electrodes that are required for the high-k dielectrics process are also used. Some makers of logic semiconductors have started to use HKMG, but higher heat treatment temperatures after HKMG formation and complicated DRAM structural characteristics have prevented consistent application in the DRAM fabrication process. Elpida, however, has managed to lower the heat treatment load and overcome certain memory device structural complications.
In producing the new DDR2 Mobile RAM, HKMG technology is able to reduce the electrical thickness of the gate dielectric in the transistor by around 30% compared with a conventional silicon oxide dielectric. The technology also raises DRAM performance by increasing transistor-on current by as much as 1.7 times compared with a silicon oxide film. Transistor-off current can be lowered to less than 1/100th of existing levels, thereby drastically reducing energy consumed in standby mode of DDR2 Mobile RAM.
Elpida plans to apply HKMG technology to produce faster and more energy efficient Mobile RAM devices, the company's mainstay product area.
In addition, Elpida will continue to evaluate and improve HKMG in order to apply the technology at the 30nm and 25nm nodes. Sample shipments of products are planned for FY 2011, with volume production to follow.
Latest News Posts
- Police called due to altercation between eSports pro and journalist
- Amazon's new Prime Air drones deliver packages in 30 minutes or less
- Star Wars Battlefront weekend PC players doubled by Team Fortress 2
- University of California develops valuable injury training simulation
- VTech hacked and 4.8 million accounts compromised, links to children
- be quiet! Dark Rock TF Top Flow CPU Cooler Review
- Gigabyte GA-78LMT-USB3 Problems With USB3
- Star Wars Battlefront PlayStation 4 Review
- "Cheap" 4K Rig
- wifi card for gigabyte x99m gaming 5 microatx
- BRAVEN Balance, the Active Lifestyle Bluetooth Speaker Now Available
- COGITO FIT WINS DESIGN FOR ASIA AWARD
- SP/ Silicon Power Announces Flagship CompactFlash Memory Card - Superior CF 1100X Born For Ultimate Performance
- Team Group Announces Neptune Gaming SO-DIMM Memory
- Cooltek Announces the Skall Series ATX Mid-tower Chassis