Electronics Forum | Thu Oct 14 23:01:48 EDT 1999 | Dennis O'Donnell
With loaded boards, warpage can be removed by placing the assembly in a wave solder conveyor pallet as you would if you were going to wave solder the assembly. Place board and fixture in a Blue M forced air oven at 90 C for 30 minutes. Let cool to r
Electronics Forum | Thu Oct 14 20:42:07 EDT 1999 | Jeff Ferry
Grace, As deifned in IPC 7721 Procedure 3.2 Bow and Twist Repair "Bow and twist after soldering shall not exceed 1.5% for through hole PC boards and .75% for surface mount PC boards. The bow and twist shall not be sufficient to cause difficulties d
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Industry News | 2013-10-08 15:37:23.0
MIRTEC, “The Global Leader in Inspection Technology”, will exhibit its award-winning line of 3D AOI and SPI Inspection Systems in Hall A2, Stand 578 at the Productronica International Trade Fair, scheduled to take place November 12 - 15, 2013 at the New Munich Trade Fair Centre in Munich, Germany.
Industry News | 2011-08-17 12:59:10.0
The SMTA announced that SMTA International will provide updated research on Head-in-Pillow component soldering defects as well as a focused tutorial on the subject. SMTAI will take place October 16-20, 2011 in Ft. Worth, Texas.
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Technical Library | 2021-01-13 21:34:29.0
Package-on-Package (PoP) is a popular technology for fabricating chipsets of accelerated processing units. However, the coefficient of thermal expansion mismatch between Si chips and polymer substrates induces thermal warpage during the reflow process. As such, the reflow temperature and reliability of solder joints are critical aspects of PoP. Although Sne58Bi is a good candidate for low-temperature processes, its brittleness causes other reliability issues. In this study, an in-situ observation was performed on composite solders (CSs) made of ...
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. Pre-reflow factors that can cause HIP include insufficient paste, bad placement, contamination/ oxidization (during handling or storage
40731 | https://www.smta.org/smtai/SMTAI-2019-Technical-Program.pdf?v=200609010628
Surface Mount Technology Association (SMTA)
