MDE Semiconductor, Inc. is a market leader in Circuit Protection Products.
SMT Lead Free Wave Soldering Machine XMW-350 Wave soldering advantages: ▶Comprehensive: economical and power-saving type is suitable for various lead-free and lead-free processes. Intelligent: intelligent control software, memory process parameters
SMT Lead Free Wave Soldering Machine XMW-450 Feature ▶Comprehensive: economical and power-saving type is suitable for various lead-free and lead-free processes Intelligent: intelligent control software, memory process parameters, automatic heating
Electronics Forum | Mon Mar 20 13:56:04 EDT 2017 | pjc
Kleenox is designed for cleaning and protecting the solder bath in wave solder pots from air oxidation and formation. Kleenox is formulated to remove oxides. Kleenox can be used with tin/lead and lead-free solder. http://www.americancleanstat.com/k
Electronics Forum | Mon Jul 14 09:41:35 EDT 2008 | davef
Q1. Do we really need to follow the IPC J-STD-001 Solder purity? A1. Yes, you should control impurities in solder. Further information: * "Allowable concentration of contaminating elements in solder: impurities are harmless unless their level goes to
Industry News | 2023-03-16 14:42:07.0
SHENMAO America, Inc. has released its new Anti-HoP Lead-Free Solder Paste PF606-P130N. The paste is specially designed for the SMT process to prevent head-on-pillow (HoP) issues.
Industry News | 2013-12-10 12:14:34.0
Indium Corporation introduces a new Pb-free solder paste designed to combine best-in-class stencil printing performance, using Indium's unique halogen-free oxidation barrier technology with optimized no-clean residues for enhanced probe testing. Indium8.9HF1-P saves time and money on testing by eliminating false failures and giving the highest first pass yields.
Technical Library | 2013-12-27 10:39:21.0
The head-in-pillow defect has become a relatively common failure mode in the industry since the implementation of Pb-free technologies, generating much concern. A head-in-pillow defect is the incomplete wetting of the entire solder joint of a Ball-Grid Array (BGA), Chip-Scale Package (CSP), or even a Package-On-Package (PoP) and is characterized as a process anomaly, where the solder paste and BGA ball both reflow but do not coalesce. When looking at a cross-section, it actually looks like a head has pressed into a soft pillow. There are two main sources of head-in-pillow defects: poor wetting and PWB or package warpage. Poor wetting can result from a variety of sources, such as solder ball oxidation, an inappropriate thermal reflow profile or poor fluxing action. This paper addresses the three sources or contributing issues (supply, process & material) of the head-in-pillow defects. It will thoroughly review these three issues and how they relate to result in head-in pillow defects. In addition, a head-in-pillow elimination plan will be presented with real life examples will be to illustrate these head-in-pillow solutions.
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SMTnet Express July 18, 2013, Subscribers: 26169, Members: Companies: 13430, Users: 34947 Effect of Surface Oxide on the Melting Behavior of Lead-Free Solder Nanowires and Nanorods by Fan Gao, Karunaharan Rajathurai, Qingzhou Cui, Guangwen Zhou
SMTnet Express, May 26, 2016, Subscribers: 24,776, Companies: 14,803, Users: 40,361 Influence of Salt Residues on BGA Head on Pillow (Hip) J. Servin, P. Gomez, M. Dominguez, A. Aragon; Continental Corporation The oxide layers are known as wetting
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/06/Vacuum-Fluxless-Reflow-Technology-for-Fine-Pitch.pdf
. Results showed that with different oxide removal agents, the agent activity had a significant impact on solder dimensional cliff. Gas formic acid has higher surface tension compared to regular reflow fluxes, providing the benefit of higher tolerance for solder wicking
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