![]() ![]() Therefore, in general, the residues are going to be more difficult to clean. ![]() Should you go to a cleanable, water soluble flux that's designed to be cleaned?īut assuming that you have your reasons for cleaning and no clean you need to realize that it's going to be more difficult, and the fact that you're soldering for lead-free, therefore, you're soldering at temperatures that are probably 30 degrees higher. You have to decide do you really need to clean it? If you are, why are you using a no clean. So most of the water-based things, which include a lot of the IPA blends, are not particularly good. So typically, they're designed not to absorb moisture. Generally, they're designed to have a residue that's safe to leave on the board without any other coating. No clean fluxes are designed not to be cleaned. So you need to know exactly what you're doing, what flux you're using, in order to choose the right solvent and the right cleaning process. The problem is there are no universal ones. We'll just call them specific cleaning solvents or cleaning materials, which can remove virtually any flux. If you're talking about a solvent blend, which there are many, the answer is yes, there are specific solvents. First off, IPA refers to isopropyl alcohol. There are a lot of issues here and we're just going to cover them briefly. ![]() Is there a specific IPA, isopropyl alcohol, to clean lead-free PCBs? Is it needed?" For some of them, we're using lead-free no clean flux and lead-free solder. He says, "In our company, all our products are RoHS compliant. What do we have here? Well, here is a question. We've got some clean questions and clean thoughts for you. We are the Assembly Brothers, Phil Zarrow and Jim Hall, of ITM Consulting. He is a pioneer in the science of reflow. He has vast experience in SMT equipment, materials and processes.Ī Lean Six-Sigma Master Blackbelt, Jim has a wealth of knowledge in soldering, thermal technology, equipment and process basics. With over 35 years experience in PCB assembly, Phil is one of the leading experts in SMT process failure analysis. Process Troubleshooting, Failure Analysis, Process Audits, Process Set-upĬEM Selection/Qualification, SMT Training/Seminars, Legal Disputes To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video.Īre there specific instructions for cleaning no-clean circuit boards using IPA? The Assembly Brothers, Phil Zarrow and Jim Hall, cover the bases answering these pressing questions and more.īoard Talk Board Talk is presented by Phil Zarrow and Jim Hall of ITM Consulting. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |