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.
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.
Industry News | 2023-03-30 22:45:02.0
Taoyuan, Taiwan (February 27, 2023) – Heller Industries, a leading provider of reflow and curing ovens for SMT and semiconductor advanced packaging, today announced the opening of a new office in Taoyuan, Taiwan, to meet the growing demand for reflow and curing equipment in the Taiwan region.
Proven Peel Back Force Measurement Supplying consistent SMT carrier packaging is critical for customers using SMT pick-and-place machines. Nothing will stop a production line faster than carrier cover tape that doesn’t peel back properly. The proble
Proven Peel Back Force Measurement Supplying consistent SMT carrier packaging is critical for customers using SMT pick-and-place machines. Nothing will stop a production line faster than carrier cover tape that doesn’t peel back properly. The proble
Industry News | 2016-02-27 22:07:08.0
GPD Global will exhibit in Booth#1818 at the upcoming IPC APEX EXPO 2016 Conference and Exhibition. See a live demonstration of 01005 dispensing on the MAX series high precision dispenser, the intuitively programmed Island series benchtop dispenser, and a full range of dispense pumps used on GPD dispense systems.
Industry Directory | Consultant / Service Provider / Manufacturer
Electronic manufacturing services - electronic design, development and manufacturing. Circuit board design, prototyping, FPGA services, signal integrity and simulation, pcb assembly. Factories in California USA and Malaysia.
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Other courses related to electronics manufacturing and assembly
Industry News | 2003-04-03 08:51:07.0
Symphony 3070TM Package from JTAG Technologies for Testing and In-System Flash / PLD Programming
Industry News | 2003-05-22 08:54:17.0
Allows PCA Manufacturers to Compare Costs of Alternative Test Strategies
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