Technical Library | 2020-03-09 10:50:17.0
A customer called the Helpline seeking advice for cleaning no-clean fluxes prior to applying a conformal coating. The customer's assemblies were manufactured with a no-clean rosin based solder paste (ROL0) and were cleaned with an isopropyl alcohol (IPA) wash. After cleaning, a white residue was sometimes found in areas with high paste concentrations and was interfering with the adhesion of the conformal coating (Figure 1). For conformal coatings to adhere properly, the printed circuit board (PCB) surface must be clean of fluxes and other residues. In addition, ionic contamination left by flux residues can lead to corrosion and dendrite growth, two common causes of electronic opens and shorts. Other residues can lead to unwanted impedance and physical interference with moving parts.
Used SMT Equipment | Soldering - Wave
Speedline Electrovert Vectra 450/F Wave Soldering Machine Make: Speedline Electrovert Model: 450/F Year: 1999 Lead-Free Convection Bottom-Side Preheat (2 Zones) No-Clean Flux Board Grip & L Fingers SW: V3.27 Complete & Operational
Events Calendar | Wed Apr 21 00:00:00 EDT 2021 - Wed Apr 21 00:00:00 EDT 2021 | ,
Oregon Chapter Tutorial: How Clean is Clean and How Do You Know for Sure?
Flux spray coating on a PCB with uniformal thickness down to 5 microns, with clear edge definition and minimal overspray. Can coat large or shoot dots with the same jet.
Industry News | 2008-09-21 01:46:38.0
ROSEMONT, IL � Industry-leading associations IPC and SMTA jointly announce that Joe Russeau (Session Chair) of Precision Analytical Laboratory, Dr. Bev Christian of Research in Motion, Dave Hillman of Rockwell Collins, Matt Kehoe of Sipad Systems, and Doug Schueller of AbleConn will present during Session 3 on Building to Customer Reliability Standards in Class 2 and Class 3. The symposium, jointly sponsored by IPC and SMTA, will be held at Crowne Plaza Chicago O'Hare in Rosemont, IL on October 28-29, 2008.
Industry News | 2014-10-28 19:14:24.0
Industry-leading associations IPC and SMTA jointly announce the High-Reliability Cleaning and Conformal Coating Conference scheduled to take place November 18-20, 2014 at the Chicago Marriott in Schaumburg, Illinois.
Industry News | 2012-11-07 11:01:55.0
IPC and SMTA jointly announce the agenda for Session 6 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.
Industry News | 2008-08-11 22:40:35.0
ROSEMONT, IL � Industry-leading associations IPC and SMTA announce the jointly sponsored High-Performance Electronics Cleaning Symposium to be held at the Crowne Plaza Chicago O'Hare in Rosemont, IL on October 28-29, 2008.
Industry News | 2008-10-26 00:28:46.0
ROSEMONT, IL � Industry-leading associations IPC and SMTA jointly announce that Dave Adams (Session Chair) of Rockwell Collins, Lee Flasche of Delphi Electronics Group, Dr. Ning-Chen Lee of Indium Corporation, Steve Hugh of Philips Medical, and Dr. Ken Dishart formerly of DuPont will present in Session 4 on Lead-Free Cleaning. The symposium, jointly sponsored by IPC and SMTA, will be held at Crowne Plaza Chicago O'Hare in Rosemont, IL on October 28-29, 2008
