Technical Library | 2018-09-26 20:33:26.0
Bottom terminated components, or BTCs, have been rapidly incorporated into PCB designs because of their low cost, small footprint and overall reliability. The combination of leadless terminations with underside ground/thermal pads have presented a multitude of challenges to PCB assemblers, including tilting, poor solder fillet formation, difficult inspection and – most notably – center pad voiding. Voids in large SMT solder joints can be difficult to predict and control due to the variety of input variables that can influence their formation. Solder paste chemistries, PCB final finishes, and reflow profiles and atmospheres have all been scrutinized, and their effects well documented. Additionally, many of the published center pad voiding studies have focused on optimizing center pad footprint and stencil aperture designs. This study focuses on I/O pad stencil modifications rather than center pad modifications. It shows a no-cost, easily implemented I/O design guideline that can be deployed to consistently and repeatedly reduce void formation on BTC-style packages.
Industry News | 2016-09-07 18:44:03.0
KYZEN announces that Dr. Mike Bixenman will present the recent paper entitled, “Reactivity of No-Clean Flux Residues Trapped Under Bottom Terminated Components” during SMTA International. The paper is co-authored by Bruno Tolla, Ph.D., Jennifer Allen and Kyle Loomis from Kester and will be presented during the “Flux, Solder, Adhesives Track” on Tuesday, September 27, 2016 at 3 p.m.
Technical Library | 2019-08-14 22:20:55.0
Cleanliness is a product of design, including component density, standoff height and the cleaning equipment’s ability to deliver the cleaning agent to the source of residue. The presence of manufacturing process soil, such as flux residue, incompletely activated flux, incompletely cured solder masks, debris from handling and processing fixtures, and incomplete removal of cleaning fluids can hinder the functional lifetime of the product. Contaminates trapped under a component are more problematic to failure. Advanced test methods are needed to obtain "objective evidence" for removing flux residues under leadless components.Cleaning process performance is a function of cleaning capacity and defined cleanliness. Cleaning performance can be influenced by the PCB design, cleaning material, cleaning machine, reflow conditions and a wide range of process parameters.This research project is designed to study visual flux residues trapped under the bottom termination of leadless components. This paper will research a non-destructive visual method that can be used to study the cleanability of solder pastes, cleaning material effectiveness for the soil, cleaning machine effectiveness and process parameters needed to render a clean part.
Industry News | 2015-05-11 17:16:30.0
KYZEN is pleased to announce that Debbie Carboni will present at the IMAPS METRO Chapter Full Day Symposium and Vendor Night, scheduled to take place Wednesday, May 13, 2015 at the Clarion (former Holiday Inn) in Ronkonkoma, New York. Carboni will present the paper entitled, “Advanced Packaging Cleaning Fluid Best Practice.”
Industry News | 2017-04-11 21:21:11.0
KYZEN today announced plans to participate in the Contamination, Cleaning & Coating Conference, scheduled to take place May 22-24, 2017 in Amsterdam. The event is co-organized by SMTA and SMART Group. Mike Bixenman, DBA, KYZEN Corporation will present “Development of a Risk Profile from Flux Residues Trapped under Leadless Components” in Session I entitled “Residues Trapped under Component Terminations”. All presentations in this session will address a common question faced by OEMs when designing electronic hardware: How clean is clean enough?
Industry News | 2015-10-30 15:33:26.0
Indium Corporation announces the release of its newest informational video that describes how solder preforms can reduce voiding in bottom termination components.
Industry News | 2020-09-06 04:29:53.0
Indium Corporation's Iván Castellanos, Technical Services Manager for Latin America, will host an Avoid the Void® InSIDER Series workshop on how to avoid voiding in bottom termination components (BTCs) on Tuesday, September 22 at 12 p.m. Central Time (Mexico)/7 p.m. Central European Summer Time (Madrid, Spain).
Industry News | 2011-09-12 13:13:12.0
Kyzen announces that Phil Zhang has been awarded Best Presentation of Vendor Conference One (CS11) at the SMTA China South Conference 2011 Award Presentation Ceremony.
Industry News | 2014-05-22 11:36:25.0
Indium Corporation's Derrick Herron, technical support engineer, will serve as an expert presenter at ZESTRON’s Assembly, Cleaning, and Reliability Hands-on Workshop on June 10 in Franklin, Mass.
Industry News | 2016-09-15 18:20:55.0
KYZEN is pleased to announce plans to exhibit and present during the conferences at IEMT-EMAP 2016, scheduled to take place Sept. 20-22, at the G-Hotel in Penang, Malaysia. KYZEN Sdn Bhd’s Technical Sales Manager, TC Loy, will present the paper authored by Mike Bixenman, MBA, DBA and Jason Chan, entitled, “Advanced Packaging and Electronic Assembly Cleaning Fluid Innovation.”
