초록 ▼

A system and method for manufacturing disk drives, the disk drives having reliability attributes and manufacturing attributes, the manufacturing attributes comprising process or component manufacturing attributes is disclosed. The reliability attributes comprise measurements for predicting future re

A system and method for manufacturing disk drives, the disk drives having reliability attributes and manufacturing attributes, the manufacturing attributes comprising process or component manufacturing attributes is disclosed. The reliability attributes comprise measurements for predicting future reliability of the disk drives at the time of manufacture. The disk drives are prepared with a servo format. Each disk drive is connected to a test apparatus and then tuned to verify that each disk drive performs within expected limits. One or more technical screen tests are performed on all of the disk drives. A first sample set of the disk drives is selected automatically at a defined size using a randomizer. One or more extended tests are executed on the first sample set of disk drives to measure a margin magnitude for one or more of the reliability attributes. The margin magnitude is compared with a reference to detect a significant change. If a significant change in the margin magnitude from the reference is detected, then the defined sample size is adjusted. A second sample set of the disk drives is selected according to the adjusted sample size using the randomizer. The extended tests are then repeated on the second sample set to validate the significant change.

대표청구항 ▼

A system and method for manufacturing disk drives, the disk drives having reliability attributes and manufacturing attributes, the manufacturing attributes comprising process or component manufacturing attributes is disclosed. The reliability attributes comprise measurements for predicting future re

A system and method for manufacturing disk drives, the disk drives having reliability attributes and manufacturing attributes, the manufacturing attributes comprising process or component manufacturing attributes is disclosed. The reliability attributes comprise measurements for predicting future reliability of the disk drives at the time of manufacture. The disk drives are prepared with a servo format. Each disk drive is connected to a test apparatus and then tuned to verify that each disk drive performs within expected limits. One or more technical screen tests are performed on all of the disk drives. A first sample set of the disk drives is selected automatically at a defined size using a randomizer. One or more extended tests are executed on the first sample set of disk drives to measure a margin magnitude for one or more of the reliability attributes. The margin magnitude is compared with a reference to detect a significant change. If a significant change in the margin magnitude from the reference is detected, then the defined sample size is adjusted. A second sample set of the disk drives is selected according to the adjusted sample size using the randomizer. The extended tests are then repeated on the second sample set to validate the significant change. ., Feb. 1998, pp. 1-16. "Distributed Weighted Random Early Detection", Cisco Systems, Inc., Feb. 1998, pp. 1-6. "Distributed Weighted Fair Queuing", Cisco Systems, Inc., Mar. 1998, pp. 1-18. Action Request Systems, Remedy Corporation, (c) 1998, pp. 1-6. "3Com's Framework for Delivering Policy-Powered Networks", 3Com Corporation, Jun. 23, 1998. Policy-Based Routing, Cisco Systems, Inc., Sep. 12, 1996, pp. 1-6. Braden, Ed R., et al., "Resource ReSerVation Protocol (RSVP)--Version 1 Functional Specification", RFC 2205, Sep. 1997, pp. 1-47. Internet Firewall Technologies, Firewall-1 Overview, Chapter 1, Jul. 1997, pp. 1-17. FloodGate-1 Data TM Data Sheet, Enterprise Traffic Management, (co) 1997, pp. 1-7 and p. 1 of 1. Isomaki, M., Differentiated Services for the Internet, May 9, 1998, pp. 1-17.