Accelerated vibration fatigue life testing of leads and soldered joints

Blanks, Henry S.

doi:10.1016/0026-2714(76)90754-x

Cited by 15 publications

(8 citation statements)

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“…Steinberg has also written a series of simplified but useful articles in trade magazines [6][7][8][9][10][11], most of which appear to be derived from his book. Other relevant papers in the archival literature or presented in conferences [12][13][14][15][16] were also reviewed.…”

Section: The Effects Of Avionics Environmental Vibration On the Sealsmentioning

confidence: 99%

“…Other tests were carried out on seals that had been significantly cracked on the outside by bending the leads. These seals were subjected to probe forces on the lead extension inside the package as described above using the apparatus of figure 16. One such lead produced large AE bursts at 40, 95, 125, and 200 gf.…”

Section: Acoustic Emission Tests To Determine Glass-seal Damagementioning

confidence: 99%

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The use of acoustic emission to determine the integrity of large hybrid packages

Harman¹

1980

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The general objective of the program was to develop tests to determine the integrity of large hybrid packages under various thermal and mechanical stresses that may be encountered during assembly, during installation in systems, or in operation. Several measurement techniques are being investigated, but emphasis is placed on acoustic emission test procedures. The specific objectives studied during the initial period were: (1) determination of the effects of avionics environmental vibration on the seals of hybrid packages mounted on printed-circuit (PC) boards; (2) development of an acoustic emission detector sensitive to surface waves, but insensitive to vibration-induced cable noise; (3) development of a hightemperature (125°C) open-package helium leak test to observe marginal seal damage; (4) development of an acoustic emission test for inspection of hybrid packages during high-temperature thermal shock; and (5) determination of possible damage to seals during thermocompression and thermosonic bonding, during lead forming, and during other assembly operations.

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Section: The Effects Of Avionics Environmental Vibration On the Sealsmentioning

confidence: 99%

Section: Acoustic Emission Tests To Determine Glass-seal Damagementioning

confidence: 99%

The use of acoustic emission to determine the integrity of large hybrid packages

Harman¹

1980

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“…Instead, just the detector in its water-cooled mount, the totalizing system, and the printer portion of figure 26 was employed. Each AE cycle or pulse above a set threshold was recorded and the summation of these were printed each second.…”

Section: Acoustic-emission-monitored Shock Testmentioning

confidence: 99%

“…Other relevant papers in the archival literature or presented in conferences [22][23][24][25][26] were also reviewed.…”

Section: Introductionmentioning

confidence: 99%