New PEM® ReelFast® Brass Surface Mount Fasteners for PC Boards Provide Superior Electrical and Mechanical Attachment Points New PEM® ReelFast® brass surface mount fasteners from PennEngineering® introduce ideal hardware solutions for printed cir
New Equipment | Solder Materials
KappAloy9™ - 91%Sn - 9%Zn - 390°F (199°C) eutectic alloy is the best solder for soldering Aluminum wire to Copper busses or soldering Copper wire to Aluminum busses or contacts. Its low eutectic melting point minimizes heating of critical electrical/
Electronics Forum | Wed Feb 03 23:40:26 EST 1999 | Chris G.
| Does anyone know if I will have problems soldering surface mount components to an all hard gold plated PC board. We want to use hard gold similar to gold used for edge fingers because our customer is concerned about wear and conductivity of connect
Electronics Forum | Sat Sep 18 04:42:52 EDT 1999 | Brian
Dave, I'll respond by paragraph: | | | Brian: | | I like Ag2 also. I prefer it over both 63/37 and 60/40, if the price is not a factor. Yes, gold rips through eutectic and near-eutectic solders like habanero slathered shiitake burritos through
Industry News | 2003-05-28 08:20:13.0
Aiming to promote its environmental activities on a global basis, the use of lead-free solder conforms to the European Union's regulation on restrictive use of toxic substances.
Industry News | 2018-10-18 09:46:58.0
Analysis of how to spot welding process
Technical Library | 2019-08-07 22:56:45.0
The requirement to reconsider traditional soldering methods is becoming more relevant as the demand for bottom terminated components (QFN/BTC) increases. Thermal pads under said components are designed to enhance the thermal and electrical performance of the component and ultimately allow the component to run more efficiently. Additionally, low voiding is important in decreasing the current path of the circuit to maximize high speed and RF performances. The demand to develop smaller, more reliable, packages has seen voiding requirements decrease below 15 percent and in some instances, below 10 percent.Earlier work has demonstrated the use of micro-fluxed solder preforms as a mechanism to reduce voiding. The current work builds upon these results to focus on developing an engineered approach to void reduction in leadless components (QFN) through increasing understanding of how processing parameters and a use of custom designed micro-fluxed preforms interact. Leveraging the use of a micro-fluxed solder preform in conjunction with low voiding solder paste, stencil design, and application knowhow are critical factors in determining voiding in QFN packages. The study presented seeks to understand the vectors that can contribute to voiding such as PCB pad finish, reflow profile, reflow atmosphere, via configuration, and ultimately solder design.A collaboration between three companies consisting of solder materials supplier, a power semiconductor supplier, and an electronic assembly manufacturer worked together for an in-depth study into the effectiveness of solder preforms at reducing voiding under some of the most prevalent bottom terminated components packages. The effects of factors such as thermal pad size, finish on PCB, preform types, stencil design, reflow profile and atmosphere, have been evaluated using lead-free SAC305 low voiding solder paste and micro-fluxed preforms. Design and manufacturing rules developed from this work will be discussed.
Teresa Rowe, IPC director of assembly standards, highlights several revisions to IPC J-STD-001F, Requirements for Soldered Electrical and Electronic Assemblies and IPC-A-610F, Acceptability of Electronic Assemblies. The documents have been updated to
Events Calendar | Thu Mar 25 00:00:00 EDT 2021 - Thu Mar 25 00:00:00 EDT 2021 | ,
Webinar: Process Control to Ensure Electrochemically Reliable Electronics
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/our-company/news-room/news-releases/nordson-corporation-acquires-interselect-gmbh
. Selective soldering is the process of soldering specific components to printed circuit boards and molded modules. The approach is chosen for processes where components could be damaged by the heat of a reflow oven in a traditional surface mount (SMT
| http://etasmt.com:9060/te_product_g_c646/2019-08-19/4829.chtml
: High Performance Reflow Soldering Oven Model: Reflow Soldering Oven Brief: High performance reflow soldering oven, SMT reflow oven, soldering oven, SMD soldering machine, for soldering surface mount components to a printed circuit board or PCB
