The PCB Footprint Expert is a powerful CAD library development tool powered by our own proprietary CAD LEAP Technology (Libraries Enhanced with Automated Preferences). It is packed with very powerful advanced library management features that cuts foo
High-speed Automated X-ray CT Inspection System The Omron VT-X750 is the perfect solution to manufacturers desiring the highest-speed, in-line, automated 3DCT X-Ray inspection on PCBs containing components such as BGAs or CSPs with hidden solder joi
Electronics Forum | Wed Apr 18 08:14:20 EDT 2007 | davef
Silver palladium termination * AgPd-terminated capacitors are designed for conductive adhesion. Reflow or wave soldering is not recommended. [EPCOS Multilayer ceramic capacitors, Soldering directions, October 2006] * CONDUCTIVE EPOXY BONDING. Epoxy c
Electronics Forum | Fri Nov 23 16:09:01 EST 2007 | davef
We're not real clear about what you're trying to discuss, because most capacitors are packaged in epoxy with a solderable termination on each end. But lets throw a couple of ideas at the wall and see what sticks. If this epoxy is: * From the capaci
Used SMT Equipment | Repair/Rework
● Bottom and top heaters reflow solder to remove components with BGA, gull wing leaded QFPs, and bottom termination components. ●Paste dispenser allows placement of precise paste dots. ● Dual mirror system for component alignment for removal an
Industry News | 2011-05-03 22:50:52.0
Assemblers who have tried to resolve problems that stem from the rapidly growing array of advanced packages are getting some help from IPC with the newly released IPC-7093, Design and Assembly Process Implementation for Bottom Termination Components. This standard describes the critical design, assembly, inspection, repair, and reliability issues associated with bottom termination components (BTCs) whose external connections consist of metallized terminals that are an integral part of the component body.
Industry News | 2012-11-02 09:04:14.0
IPC and SMTA jointly announce the agenda for Session 5 of the High-Reliability Cleaning and Coating Conference, scheduled to take place November 13-15, 2012 at the Crowne Plaza Hotel – O’Hare in Chicago, IL.
Parts & Supplies | SMD Placement Machines
PANASERT / UNIVERSAL / DYNAPERT PARTS FOR SALE N434UQ04041 Tube BLKE01252 FUSE 5A 40833025 FUSE 1.5A 42453904 FUSE 5A 42453907 FUSE 1A 46347803 Relay 40525301 SHOCK ABSORBER KXF0DSSAA00 46849802 SENSOR 46347803 RELAY 47323702 PROX SWITCH PNP N
Parts & Supplies | SMD Placement Machines
PANASERT / UNIVERSAL / DYNAPERT PARTS FOR SALE N434UQ04041 Tube BLKE01252 FUSE 5A 40833025 FUSE 1.5A 42453904 FUSE 5A 42453907 FUSE 1A 46347803 Relay 40525301 SHOCK ABSORBER KXF0DSSAA00 46849802 SENSOR 46347803 RELAY 47323702 PROX SWITCH PNP N
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.
Technical Library | 2017-07-20 15:18:15.0
As electronic devices increase functionality in smaller form factors, there will be limitations, obstacles and challenges to overcome. Advances in component technology can create issues that may have time delayed effects. One such effect is device failure due to soldering residues trapped under bottom terminated components. If the residues trapped under the component termination are active and can be mobilized with moisture, there is the potential for ion mobilization causing current leakage.
The PCB Footprint Expert is a powerful CAD library development tool powered by our own proprietary CAD LEAP Technology (Libraries Enhanced with Automated Preferences). It is packed with very powerful advanced library management features that cuts foo
QFN stenicl bumping process demonstrated using a polyimide stencil. This process is one in which a stencil is used to the bump the bottom terminations of a leadless device making it simple to place without voiding of the the thermal pac or shorting o
Events Calendar | Thu Oct 03 00:00:00 EDT 2019 - Thu Oct 03 00:00:00 EDT 2019 | ,
IPC Tech Ed Webinar Series: Ball Grid Array (BGA) and Bottom Termination Component (BTC) Design and Assembly Challenges: Reflow Profiling to Achieve Low Defect Rates and Successful Assembly! – Part 2
Events Calendar | Wed Mar 08 00:00:00 EST 2017 - Wed Mar 08 00:00:00 EST 2017 | San Diego, California USA
San Diego Chapter - Minimizing Voiding in Bottom-Terminating Components
SMTnet Express, October 23, 2014, Subscribers: 23438, Members: Companies: 14072, Users: 37000 Combination of Spray and Soak Improves Cleaning under Bottom Terminations. Dr. Mike Bixenman; Kyzen Corporation , Julie Fields; Technical Devices Company
SMTnet Express, July 23, 2015, Subscribers: 23,004, Members: Companies: 14,461 , Users: 38,507 Reliability Study of Bottom Terminated Components Jennifer Nguyen, Hector Marin, David Geiger, Anwar Mohammed, Murad Kurwa; Flextronics International
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=4798
. Many of the industry standard test vehicles are dated and not representative of current electrical and electronic assemblies. The purpose of this research is to use a non-standard test board with sensors placed at the bottom termination to study cleanliness and contamination effects under QFN components