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Hewlett-packard Articles 4 Thin-film Memory Disc Development, In-line Sputtering Deposition System for Thin-film Disc Fabrication, What's Ahead Thin-film Memory Disc Development
| Content Provider | Semantic Scholar |
|---|---|
| Author | Moore, Glenn E. |
| Copyright Year | 2006 |
| Abstract | David recording provides Sputtering a cobalt alloy on a disc for magnetic data recording provides improved performance and reliability, but not without careful development. A sophisticated control system and physical design moves the discs from one deposition step to the next without exposing the discs to atmospheric conditions between steps. Darrel drive Bloomquist Optimizing disc fabrication has a major effect on disc drive product cost and quality. Q O Thin-Film Discs: Magnetic, Electrical, and Mechanical Design, by Michael C. Allyn, J Peter parameters Goglia, and Scott R. Smay When the magnetic and electrical parameters require a head to fly only 200 nm above a disc, surface smoothness becomes an important design parameter. In this Issue ^•fe-*^H^H The incorporation of a sputtered thin-film magnetic disc in the HP 97501 A I 3V2-lnch 10-Mbyte Disc Drive culminated several years of effort at HP â " ¢ ^H Laboratories and HP's Disc Memory and Greeley Divisions. The thin-film I disc, in which a magnetic metallic layer acts as the data storage medium, A f represents a major technology advance in rigid magnetic recording discs. HP's the of vacuum sputtering deposition instead of plating for the production of the thin films has led to much tighter process control, higher yields, better manufacturability, and lower costs. J ... formed J Disc h 1977. DICK Hackborn. then genera: manager of the newly formed Disc Memory recording initiated the program. Hackborn believed that as magnetic recording technology evolved, the thin-film magnetic disc would play a crucial role in future disc drives. The initial HP investigation of thin-film disc technology was done at HP Labs by Jim Opfer and Len Cutler and their groups and is summarized in the article on page 4. Several courses were pursued technology parallel to establish a solid foundation for future work and to determine if the technology was feasible. In addition to theoretical studies of magnetic recording by Dave Bromley, Richard Baugh, appropriate Ed Murdock, characterization equipment was developed to ensure that appropriate parameters could be studied (examples are described by Robin Gifford and Vic Hesterman and by Rich Elder in the boxes on pages 6 and 8). Various materials systems were evaluated by B.R. Natarajan with heavy emphasis on the reliability of the disc. As the program evolved, it became apparent first the disc fabrication process would be as important as the disc itself, and the first in-line Drennan (ILS) system … |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1985-11.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
