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IP.com Disclosure Number: IPCOM000013346D
Original Publication Date: 1999-Dec-01
Included in the Prior Art Database: 2003-Jun-18

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Published is a device that will be inserted into the actuator connector bracket casting located on the hard drive that will allow continued testing and shipping of product. This is an alternative to lost tester time and hard drive teardown/rework and associated scrap related to this process. Each hard drive casting has an opening to install and secure the actuator connector bracket. This bracket has a critical alignment pin for in-house testing and for mounting to additional hardware. Once this pin is broken, the actuator must be re-worked and can no longer be processed. By placing this “picture frame/spacer” into the casting opening once the alignment pin has broken, it will not interrupt testing or shipping processes, saving test time and rework time. This effects location of the contact pins that will be centered on the actuator connector, thus the connectors will be nominally shifted. Running the tolerance analysis shows that if the current 3-sigma level is applied as a tolerance band, a 95% yield will occur. Tolerance study review shows that this is “mean centered” at 97.0mm for the pin/connector hole dimension, but should be mean centered at 97.1mm. Further study found the same 63um shift in connector pin location difference between hard file layout and actual part pin location. This translates to the same 0.1mm nominal shift of card to casting fitup. Picture frame spacer (pictured below) IBM part number 09L0120