Technical Library | 2023-01-17 17:27:13.0
Reflow profile has significant impact on solder joint performance because it influences wetting and microstructure of the solder joint. The degree of wetting, the microstructure (in particular the intermetallic layer), and the inherent strength of the solder all factor into the reliability of the solder joint. This paper presents experimental results on the effect of reflow profile on both 63%Sn 37%Pb (SnPb) and 96.5%Sn 3.0%Ag 0.5%Cu (SAC 305) solder joint shear force. Specifically, the effect of the reflow peak temperature and time above solder liquidus temperature are studied. Nine reflow profiles for SAC 305 and nine reflow profiles for SnPb have been developed with three levels of peak temperature (230 o C, 240 o C, and 250 o C for SAC 305; and 195 o C, 205 o C, and 215 o C for SnPb) and three levels of time above solder liquidus temperature (30 sec., 60 sec., and 90 sec.). The shear force data of four different sizes of chip resistors (1206, 0805, 0603, and 0402) are compared across the different profiles. The shear force of the resistors is measured at time 0 (right after assembly). The fracture surfaces have been studied using a scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS)
i4.0 Today caught up with Marc Peo of Heller Industries at IPC Apex Expo in San Diego, to discuss the IPC CFX initiative. Check out the rest of the CFX Videos from IPC APEX EXPO 2018 here: CFX Highlights: https://youtu.be/Q7_fWK7_zeA IPC Representati
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Briefing Co-hosted by IPC as Part of Continuing Effort to Connect IPC Members with Policymakers.
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Learn first-hand the experiences, challenges and solutions our leaders are taking to achieve truly smart manufacturing.
Industry News | 2011-02-07 15:23:56.0
GPD Global will highlight its Positive Cavity Displacement (PCD) Dispensing at the upcoming SMTA Houston Expo & Tech Forum, scheduled to take place Thursday, March 3, 2011 at the Stafford Centre in Stafford, TX.
Jetting Simplified Jetting pumps are excellent for dispensing small volumes of fluid at high rates of speed. The NCM5000 simplifies jetting to its basic elements - this means easy set up, cleaning, and maintenance for you. The drive system is design
Industry News | 2021-06-26 09:04:13.0
Whizz Systems, Inc. today announced the addition of a Powersonic™ Benchtop Ultrasonic Cleaner from Crest Ultrasonics.
Industry News | 2020-05-25 13:36:54.0
MIRTEC is pleased to announce that CE3 Electronics Inc., a World-Class EMS provider specializing in advanced printed circuit board assembly and complex cable and wire harness manufacturing, has selected MIRTEC as their 3D AOI partner with the purchase of an MV-6 OMNI 3D AOI Machine.
Industry News | 2003-02-24 09:54:40.0
Effective March 3, Cookson Electronics Assembly Materials (Jersey City, NJ) will increase prices for its products by an average of 3 percent, the company announced today.
Industry News | 2003-05-08 07:27:27.0
Easby Electronics is offering a line of low-cost plug and socket PCB terminal blocks in a vast range of styles and sizes, which now include 3.50 and 3.81mm pitches.
Nordson Electronics Solutions makes reliable electronics an everyday reality. Our ASYMTEK, MARCH, and SELECT brands deliver precision fluid dispensing, conformal coating, plasma treatment and selective soldering equipment.
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