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
- Samsung to produce chips for the iPhone 9, LG batteries
- Facebook is working on a modular smartphone
- Samsung's 1st dual camera phone has an Always On Display
- $32 million of Ethereum stolen by hackers
- Fake AMD Ryzen CPUs have been sent by Amazon
- Cryptocurrency mining deflates, used GPUs hit eBay
- G.SKILL TridentZ RGB DDR4-3600 32GB Memory Kit Review
- ASRock X299 Taichi Motherboard Review
- Transcend ESD220C 120GB Portable SSD Review
- Need help getting backup bios to work z77 d3h
- Atari announces Blade Runner 2049 partnership with NECA and Audiowear, launching wearable technology that blurs the line between fashion and future
- BIOSTAR introduces the world's first 8-slot PCI-e mining motherboard with the TB250-BTC+
- HyperX unveils HyperX Alloy Elite and TKL HyperX Alloy FPS Pro mechanical gaming keyboards
- Toshiba Memory Corporation develops world's first 3D flash memory with TSV technology
- ADATA releases XPG GAMMIX line with S10 PCIe Gen3x4 NVMe 1.2 SSD and D10 DDR4