Technical Library | 2023-01-17 17:19:44.0
A test program was developed to evaluate the effectiveness of vacuum reflow processing on solder joint voiding and subsequent thermal cycling performance. Area array package test vehicles were assembled using conventional reflow processing and a solder paste that generated substantial void content in the solder joints. Half of the population of test vehicles then were re-processed (reflowed) using vacuum reflow. Transmission x-ray inspection showed a significant reduction in solder voiding after vacuum processing. The solder attachment reliability of the conventional and vacuum reflowed test vehicles was characterized and compared using two different accelerated thermal cycling profiles. The thermal cycling results are discussed in terms of the general impact of voiding on solder thermal fatigue reliability, results from the open literature, and the evolving industry standards for solder voiding. Recommendations are made for further work based on other void reduction methods and additional reliability studies.
This elevator format oven utilizes vertical space to accomodate curing applications of up to 4 hours while only occupying 96" (2.5m) of floorspace. Perfect for underfill and encapsulant.
Technical Library | 2023-01-17 17:22:28.0
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. Detailed industry investigations have shown that voids have little effect on solder joint integrity unless they fall into specific location/geometry configurations. These investigations have focused on thermal cycle testing at 0°C-100°C, which is typically used to evaluate commercial electronic products. This paper documents an investigation to determine the impact of voids in BGA and CSP components using thermal cycle testing (-55°C to +125°C) in accordance with the IPC- 9701 specification for tin/lead solder alloys. This temperature range is more typical of military and other high performance product use environments. A proposed BGA void requirement revision for the IPC-JSTD-001 specification will be extracted from the results analysis.
http://www.gpd-global.com GPD Global expands the performance of its automated dispense systems to run fundamental Pick & Place operations. The same automated fluid dispensing machine is capable of dispensing fluids and also Pick & Place simple compo
Industry News | 2016-06-27 14:59:09.0
GPD Global introduces the NEW TempView Thermal Imaging System that ensures the success of heated dispensing processes like Underfill, Encapsulations, Dam and Fill, and more. The TempView Thermal Imaging System monitors the temperature of the entire substrate for complete heat profile characterization. Regions of the product may be selected for monitoring during the heating process. Now you can accurately monitor temperature of specific devices to be sure they are up to temperature before starting a process.
http://www.gpd-global.com No drip no drool across a wide range of fluid viscosities (low-to-mid and low-to-high). No manual adjustment to compensate for pump variability. Truly Volumetric PCD Pumps for total control of dispensing fluids. Ability to
Industry News | 2010-12-07 14:53:07.0
GPD Global announces that its Positive Cavity Displacement (PCD) technology is proven with silver-filled electrically and thermally conductive adhesives.
Industry News | 2013-10-10 09:56:45.0
GPD Global has again pushed the limits for small-volume dispensing with its new Nano-Piston pump. Dots of conductive adhesive down to 100 μm and solder paste for 01005s are possible with the Nano-Piston Pump.
Industry News | 2016-11-07 16:28:47.0
GPD Global expands the performance of its automated dispense systems to run fundamental Pick & Place operations.
Industry News | 2011-01-12 17:48:44.0
GPD Global will highlight its Positive Cavity Displacement (PCD) Dispensing in Booth #6111 at the upcoming Automation and Technology West Expo (ATX), scheduled to take place February 8-10, 2011 at the Anaheim Convention Center in Anaheim, CA.
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
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