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Samsung 50nm DRAM Memory Chip
Nic Rossmüller : October 29th 2006 - 19:00 CET
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SamsungSamsung 50nm DRAM Memory Chip : Samsung Electronics announced that it has developed the industry’s first 50-nanometer DDR2 DRAM chip, which will increase production efficiency from the 60nm level by 55 percent. The new 1-gigabit DRAM incorporates advanced technologies such as three-dimensional transistor design and multi-layered dielectric technology, which greatly enhance performance and data storage capabilities. “With the 50nm DRAM development, we’re continuing our technology leadership, paving the way for our customers to reap not only greater cost efficiencies but also to make superior products,” said Nam Yong Cho, executive vice president of memory sales & marketing at Samsung Electronics’ Semiconductor business.
Samsung 50nm DRAM Memory Chip Samsung DRAM Memory Chip
Key to the exceptional efficiencies in the newly developed 50nm process is the use of a selective epitaxial growth transistor. This 3D transistor has a broader electron channel that optimizes the speed of each chip’s electrons to reduce power consumption and enable higher performance. Miniaturization of the overall memory circuit and an increasingly limited area of coverage within a wafer cell make it much harder to secure and sustain sufficient volumes of electrons. Adding to the 50nm design improvements, the SEG transistor introduces a multi-layered dielectric layer to resolve weak electrical features. In addition, the new dielectric layer sustains higher volumes of electron to increase storage capacity, ensuring higher reliability in storing data.

Samsung 50nm DRAM Memory Chip - 3D Transistor
Further, Samsung’s proprietary RCAT (Recess Channel Array Transistor) technology - a fundamental 3D transistor technology which received the best paper award at the VLSI symposia in 2003 - also has been adapted to work well with Samsung’s 50nm DRAM process. The RCAT, which effectively doubles the refresh term of DRAM, is a critical technology supporting higher scalability for DRAM regardless of chip size - a key feature for enabling circuitry beyond 50nms.

Samsung 50nm DRAM technology - Graphics
The 1 Gb 50nm chip encompasses three generations of DRAM technology (70nm, 60nm and 50nm) in achieving the most advanced level yet for DRAM mass production. Samsung’s new 50nm process technology can be applied to a broad range of DRAM chips including graphics and mobile DRAM. With mass production slated for 2008, the 50nm DRAM chip is well positioned to become the mainstay of a DRAM market that is expected to account for US $55 billion by 2011.

About Samsung
Samsung Electronics Co., Ltd. is a global leader in semiconductor, telecommunication, digital media and digital convergence technologies with 2005 parent company sales of US$56.7 billion and net income of US$7.5 billion. Employing approximately 128,000 people in over 120 offices in 57 countries, the company consists of five main business units: Digital Appliance Business, Digital Media Business, LCD Business, Semiconductor Business and Telecommunication Network Business. Recognized as one of the fastest growing global brands, Samsung Electronics is a leading producer of digital TVs, memory chips, mobile phones and TFT-LCDs.

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