Toshiba Leads Industry in Bringing Discrete Track Recording Technology to Prototype of 120GB Hard Disk Drive.-- New technology Boosts Recording Density on an 80GB 1.8 Inch Single Platter Drive by 50% -- TOKYO -- Toshiba Corporation (company) Toshiba Corporation - A Japanese technology manufacturer with 364 subsidiaries worldwide. Toshiba makes and sells electronics for home, office, industry and health care including information and communication systems, electronic components, heavy electrical apparatus, today announced a prototype hard disk drive (HDD (Hard Disk Drive) See hard disk and HDD caddy. HDD - hard disk drive ) that uses Discrete Track Recording (DTR (Data Terminal Ready) An RS-232 signal sent from the computer or terminal to the modem indicating that it is able to accept data. Contrast with DSR. DTR - Data Terminal Ready ) technology to boost capacity to a record-breaking 120 gigabytes (GB) on a single 1.8-inch platter. The drive is the first in the world to apply DTR, a breakthrough technology that boost the areal density The number of bits per square inch of storage surface. It typically refers to disk drives, where the number of bits per inch (bpi) times the number of tracks per inch (tpi) yields the areal density. of a perpendicular magnetic recording (PMR PMR 1 Percutaneous myocardial revascularization, see there 2 Perinatal mortality rate 3 Polymyalgia rheumatica 4 Proportionate mortality ratio, see there ) by a full 50 percent. Toshiba plans to start mass production of HDDs integrating DTR technology in 2009. The new prototype HDD is a 1.8-inch PMR HDD. Toshiba's latest 1.8-inch HDD in the market offers a single platter capacity of 80GB; application of DTR technology boosts platter capacity to 120GB, and takes the recording density to 516 megabits per square millimeter (333gigabits per square inch). A servo pattern for tracking control is also formed on the disk. DTR technology increases recording density by forming a "groove" between the tracks on the PMR medium. The groove reduces signal interference between adjacent data tracks, allowing the pitch of the tracks to be shortened. The improved signal quality also contributes to raising the recording density by 50 percent. The DTR "groove" forming process is most easily applied to small form factor HDDs, such as 1.8 inch and 2.5 inch drives. It will take these drives to a new level of enhanced capacity. Small form factor HDDs are now found in such applications as mobile PCs, digital audio players, digital video cameras, and car navigation systems. The market has a voracious appetite for larger data capacities, as more powerful networks and applications bring broadband audio-visual capabilities to more products, particularly AV notebook PCs. Toshiba will sustain the industry's ability to meet customer needs for higher areal density, operating speed and overall drive performance through R&D that delivers cutting-edge technologies that make a difference. Toshiba expects to lead the industry in mass production of HDD integrating DTR technology. DTR technology utilizes an electron beam lithography Using electron beams to create the mask patterns directly on a chip. The wavelength of an electron beam is only a few picometers compared to the 248 to 365 nanometer wavelengths of light used to create the traditional photomasks. system developed in research related to the "Nanometer-Scale Optical High Density Disk Storage System", a national project supported by Japan's New Energy and Industrial Technology Development Organization (NEDO NEDO National Eating Disorders Organization NEDO New Energy and Industrial Technology Development Organisation (Japan) NEDO National Economic Development Office ). |
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