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Toshiba HDD perpendicular magnetic recording based
Ilse Jurriën : August 17th 2005 - 22:00 CET
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 Toshiba HDD perpendicular magnetic recording based : Toshiba Storage Device Division (SDD), the industry pioneer in small form factor hard disk drives (HDDs), today announced shipment of the world's first HDD-based on perpendicular magnetic recording (PMR). The new 1.8-inch HDD, used primarily in consumer electronics (CE) devices, enables up to 10,000 songs or 25,000 photos on a single 40GB platter. The MK4007GAL HDD 1.8-inch HDD packs 40GB on a single platter - the largest single-platter capacity yet achieved in the 1.8-inch form factor. This breakthrough technology sets new benchmarks for data density with the highest areal density currently on the market at 206 megabits per square millimeter (133 gigabits per square inch).
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 1.8-inch HDD based on PMR
"Toshiba has started an exciting new frontier for the HDD industry by leading the race to achieve this revolutionary technology, which has been the industry's aim for more than 20 years," said Scott Maccabe, vice president, Toshiba Storage Device Division. "PMR opens the door to products we haven't even begun to imagine, by removing the technical barriers inherent to packing more data on an HDD. Providing greater storage capacity on mobile disk drives allows Toshiba to give system OEMs the tools they need for next-generation digital information and entertainment devices."
1.8-inch HDD form factor - A critical component for consumer electronics
Toshiba recently announced acquisition of a design center in Fremont, Calif., to help U.S.-based engineers and OEMs create new products using platforms such as PMR to span beyond the limits of today's conventional digital products. The 1.8-inch HDD form factor has been a critical component for consumer electronics products from MP3 players to handheld GPS systems and ultra-portable PCs. To date, Toshiba has shipped more than 14 million 1.8-inch HDDs since its introduction in mid-2000. The addition of PMR technology will increase capacity options for product designs beyond those currently on the market today, especially as Toshiba introduces an 80GB 1.8-inch HDD (MK8007GAH) with PMR later this year.
PMR: The Technology Achievement
Toshiba is the first company in the storage industry to commercialize PMR, providing unsurpassed recording density and high-operating reliability on its 1.8-inch HDD platform. The technology is based on a new magnetic disk structured to support perpendicular recording, a new high-performance perpendicular magnetic head, and disk and head integration technology that maximizes their combined performance. Conventional longitudinal recording stores data on a magnetic disk as microscopic magnet bits aligned in plane. Although advances in magnetic coatings continue to improve data recording densities on HDD, when the densities become too extreme, the magnetic bits repulse each other due to in-plane alignment. Squeezing more bits on to a disk will eventually reach a point in which crowding degrades recorded bit quality. As such, HDD manufacturers face fast-approaching limits on storage capacities. By standing the magnetic bits on end, perpendicular recording reinforces magnetic coupling between neighboring bits, achieving higher and more stable recording densities and improved storage capacity.
1.8-inch PMR HDD - Product availability
The 1.8-inch PMR HDD is now shipping in Toshiba's new Gigabeat F41, enabling the MP3 player to store up to 10,000 songs. Toshiba is currently shipping the 40GB MK4007GAL to OEM and channel partners. The company plans to apply PMR technology to its 0.85-inch HDD in 2006, increasing capacity to 6GB-8GB per platter and supporting Toshiba's efforts to pioneer the market for ultra-small form factor drives.
MK8007GAH - Product specification
Formatted Capacity : 80GB
Number of Platters : 2
Number of Heads : 4
Average Seek Time : 15msec
Data Transfer Rate : Ultra DMA/100
Rotational Speed : 4,200 rpm
Interface : ATA-6
Weight : 62g
External Dimensions : 54 x 78,5 x 8mm
Shock Resistance : Operating: 4,900m/s2 (500G: 2msec)
Shock Resistance : Non-Operating: 14,700m/s2 (1,500G: 1msec)
MK4007GAL - Product specification
Formatted Capacity :
Number of Platters :
Number of Heads :
Average Seek Time : 15msec
Data Transfer Rate : Ultra DMA/100
Rotational Speed : 4,200 rpm
Interface : ATA-6
Weight : 62g
External Dimensions : 54 x 78,5 x 5mm
Shock Resistance : Operating: 4,900m/s2 (500G: 2msec)
Shock Resistance : Non-Operating: 14,700m/s2 (1,500G: 1msec)
About Toshiba storage device division
Toshiba SDD, a division of Toshiba America Information Systems Inc., leads the market in the development, design and manufacturing of optical disk drives and small form factor 0.85-inch, 1.8-inch and 2.5-inch hard disk drives. Toshiba SDD markets high-quality peripherals to original equipment manufacturers, value-added resellers, value-added dealers, systems integrators and distributors in the United States. Inherent in the Toshiba storage family are the high-quality engineering and manufacturing capabilities that have established Toshiba products as worldwide leaders.
About Toshiba America Information Systems Inc. (TAIS)
With headquarters in Irvine, TAIS is comprised of three divisions: Digital Products Division, Digital Solutions Division and the Storage Device Division. Together, the three divisions provide mobile products and solutions, Internet access plans, communications, storage and imaging products and services. Products include industry-leading portable computers, projectors, DVD/CD-recordable products and hard disk drives for computers, telephony products, digital imaging systems, wireless solutions and services.
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