Zymet's underfill encapsulants for flip chips are designed to enhance the thermal cycle performance. They incorporate silica filler, used to reduce the encapsulant’s CTE, that are highly engineered in both morphology and particle size distribution to
World's First Solder Joint Encapsulant Perfect solution for customers looking to eliminate underfilling processes. The SMT 256 Individual Solder Joint Encapsulation Adhesive is the world’s first combined flux gel/individual solder joint encapsulati
Electronics Forum | Fri Sep 03 11:45:15 EDT 2004 | rlackey
Hi Ken, I know this doesn't help in the immediate timescale, but isn't avoidance the best form? can you trace the cracking to a process issue (Solder profile, shock damage, handling damage, probe/ATE damage)or a chip cap manufacturing fault? I can'
Electronics Forum | Thu Mar 14 09:07:26 EST 2002 | cfraser
I can not tell you what the actual stress limits are. I can tell you that de-paneling PCB's by hand is a very poor choice. I have seen numerous accounts of cracked caps, resistors, and LED�s due to incorrect de-paneling procedures. I would recommend
Used SMT Equipment | Pick and Place/Feeders
The unique mounting technology is embodied in: Advanced PCB collision detection No impact force = no component cracking Pressure control for placement of closed loop For small batch and multi-variety work orders, no need to disassemble FEEDER, the mo
Used SMT Equipment | Pick and Place/Feeders
The unique mounting technology is embodied in: Advanced PCB collision detection No impact force = no component cracking Pressure control for placement of closed loop For small batch and multi-variety work orders, no need to disassemble FEEDER, the mo
Industry News | 2015-06-11 16:02:18.0
MIRTEC, "The Global Leader in Inspection Technology," will exhibit its most recent solutions for System in Package (SiP) inspection and measurement at SEMICON WEST 2015; July 14-16, 2015, at the Moscone Center in San Francisco, CA. Visitors are invited to booth # 2343 for a detailed demonstration of this exciting new technology.
Industry News | 2017-04-24 19:04:48.0
This year, MIRTEC will launch several new inspection machines equipped new cutting-edge technologies. MIRTEC is proud to be promoting these new machines in booth #1J10 at NEPCON China 2017, one of the biggest technical exhibitions of SMT and EMA, from April 25-27 at the Shanghai World EXPO Exhibition & Convention Center. MIRTEC’s new machines have been developed under a concept, ‘Perfect Inspection Solution’. This is an inspection concept involving the combination of 3D, 2D, and side-camera inspection.
Technical Library | 2014-06-19 18:13:23.0
For high-density electronic packaging,the application of flip-chip solder joints has been well received in the microelectronics industry. High-lead(Pb) solders such as Sn5Pb95 are presently granted immunity from the RoHS requirements for their use in high-end flip-chip devices, especially in military applications. In flip-chip technology for consumer electronic products, organic substrates have replaced ceramic substrates due to the demand for less weight and low cost. However, the liquidus temperatures of high-Pb solders are over 300°C which would damage organic substrates during reflow because of the low glass transition temperature. To overcome this difficulty, the composite solder approach was developed...
Technical Library | 2023-11-27 18:19:40.0
This page introduces major causes and countermeasures of solder crack in MLCCs (Multilayer Ceramic Chip Capacitors). Major causes of solder cracks Solder cracks on MLCCs developed from severe usage conditions after going on the market and during manufacturing processes such as soldering. Applications and boards that specially require solder crack countermeasures Solder cracks occur mainly because of thermal fatigue due to thermal shock or temperature cycles or the use of lead-free solder, which is hard and fragile.
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SMTnet Express, October 28, 2021, Subscribers: 26,544, Companies: 11,461, Users: 26,907 Cracks: The Hidden Defect Cracks in ceramic chip capacitors can be introduced at any process step during surface mount assembly. Thermal shock
SMTnet Express, June 19, 2014, Subscribers: 22851, Members: Companies: 13906, Users: 36363 Anisotropic grain growth and crack propagation in eutectic microstructure under cyclic temperature annealing in flip-chip SnPb composite solder joints Y
| https://www.eptac.com/soldertips/problems-with-stress-cracks-in-ceramic-components/
. If the loose components do crack, then I would start with the manufacturer and supplier. They are starting to see some chip caps that are counterfeit components, so this idea cannot be dismissed and needs to be considered
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/last-will-of-bga-void.pdf
@nordsondage.com ABSTRACT The impact of voiding on the solder joint integrity of ball grid arrays (BGAs)/chip scale packages (CSPs) can be a topic of lengthy and energetic discussion
