New Equipment | Rework & Repair Services
Reliable LGA Rework Services to Rescue Your Project BEST is your source for LGA rework services. We can optimize our processes to make sure voiding is minimized and the interconnection to all of the IO meets the IPC classification for the assembly.
New Equipment | Education/Training
This specification covers qualification and performance of rigid PCBs including with or without plated-through holes, single-sided, double-sided, multilayer with or without blind/buried vias and metal core boards. It addresses final finish and surfac
Electronics Forum | Thu Jun 02 22:40:13 EDT 2016 | slouis2014
Hi, yes have a few experiments initially i tried to increase the solder volume but component pin have insufficient solder. 1. The solder coverage do you calculate it by solder volume or solder area. 2. if i would achieve as you recommend 50-60 % woul
Electronics Forum | Fri Jun 20 03:47:24 EDT 2008 | philip
Hi all, any good recommendation for PbF paste application to reduce voids underneath the QFN thermal pad (stencil thickenss? opening? via hole? reflow profile etc)? We have tried few stencil opening design but no significant improvement as seen. Ther
Used SMT Equipment | X-Ray Inspection
Dage X Ray Inspection Machine Model: XD7500 Year: 2004 S/N: X23484 Dage NT950 "sealed transmissive", "filament-free" X ray tube *NEEDS REPLACEMENT Includes: • Lead-shielded system safety cabinet with lead-glass view window in sample door (X-r
Industry News | 2014-09-06 17:51:35.0
IPC — Association Connecting Electronics Industries® has released the F revisions of two of the industry’s most widely used standards, IPC J-STD-001, Requirements for Soldered Electrical and Electronic Assemblies, and IPC-A-610, Acceptability of Electronic Assemblies.
Industry News | 2018-12-08 03:29:29.0
SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
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.
Technical Library | 2019-07-10 23:36:14.0
Pockets of gas, or voids, trapped in the solder interface between discrete power management devices and circuit assemblies are, unfortunately, excellent insulators, or barriers to thermal conductivity. This resistance to heat flow reduces the electrical efficiency of these devices, reducing battery life and expected functional life time of electronic assemblies. There is also a corresponding increase in current density (as the area for current conduction is reduced) that generates additional heat, further leading to performance degradation.
· What is the difference between SMT vacuum reflow soldering machine and ordinary reflow soldering machine? · What problems can be solved by smt vacuum reflow soldering machine? · What is the basic principle of vacuum reflow machine? · Ho
ACI Technologies Inc. (ACI) is a scientific research corporation dedicated to the advancement of electronics manufacturing processes and materials for The Department of Defense and industry. This video provides an overview of our commercial service
Training Courses | | | PCB Assembly Courses
The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.
Training Courses | | | PCB Rework and Hand Soldering Courses
The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.
Events Calendar | Tue Feb 12 00:00:00 EST 2019 - Tue Feb 12 00:00:00 EST 2019 | ,
Webinar: BGA and Area Array Process Defects - Causes & Cures
Events Calendar | Mon Dec 02 00:00:00 EST 2019 - Mon Dec 02 00:00:00 EST 2019 | ,
Webinar: QFN/LGA Design, Assembly Process Issues & Reliability Failures
SMTnet Express, October 17, 2019, Subscribers: 32,268, Companies: 10,900, Users: 25,212 Effect Of Voids On Thermo-Mechanical Reliability of Solder Joints Credits: Alpha Assembly Solutions Despite being a continuous subject of discussion
SMTnet Express, August 17, 2017, Subscribers: 30,720, Companies: 10,649, Users: 23,665 The Effect of Vacuum Reflow Processing On Solder Joint Voiding And Thermal Fatigue Reliability Richard Coyle, Richard Popowich, Charmaine Johnson - Nokia Bell
| http://etasmt.com/cc?ID=te_news_bulletin,23577&url=_print
Key Advances in Void Reduction-News-Reflow oven,SMT Reflow Soldering Oven-cmsadmin Reflow oven,SMT Reflow Soldering Oven 当前位置: Home >> News >> News Key Advances in Void Reduction Key Advances in Void Reduction in the Reflow Process Using Multi-Stage Controlled Vacuum This paper explores new advances in the reflow soldering process
Heller 公司 | http://hellerindustries.com.cn/Vacuum-Void-Reduction-Reflow.pdf
. Area array package test vehicles were assembled using conventional reflow processing and a solder paste that generated substantial void content in the solder joints
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