PRODUCTION ENGINEERING MEASURE CR-(XM-53)/U QUARTZ CRYSTAL UNITS.

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Abstract:

The work was devoted to the preliminary investigation of reliability. The goal of this program is to achieve a maximum failure rate of 1 per thousand hours with the 1000 pilot-run units, using a 6-month test at 85C to determine compliance. Frequency changes exceeding 4 x 10 to the minus 8th power per month andor resistance increases of more than 15 are considered as failures. Tests were conducted on sample CR-XM-53U units which had received no special processing or screening to improve reliability, other than the methods normally used on all precision crystal units. These tests indicate that the samples can meet or closely approach the requirements, but that losses because of holder failure, mostly cracking or leakage around the pins, keep both sealing yields and failure rates at unsatisfactory levels. Author

Author(s):
Wolfskill, J. M. ; George, Merle ; Mouck, Robert
Author Organization(s):
BLILEY ELECTRIC CO ERIE PA
Descriptive Note:
Quarterly rept. no. 5, Nov 65-Jan 66.
Supplementary Note:
See also AD-626 433.
Pagination:
0021

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DA-36-039-AMC-03640(E)
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*QUARTZ RESONATORS, MANUFACTURING), CRYSTAL HOLDERS, RELIABILITY(ELECTRONICS), PERFORMANCE(ENGINEERING), AGING(MATERIALS)
Field(s)/Group(s):
Electrical and Electronic Equipment, Manufacturing and Industrial Engineering and Control of Production Systems
Keyword(s):
CR (XM 53) U CRYSTAL UNITS
Report Date:
1965 Jan 01