New Equipment | Solder Materials
SPA1000 – Solder Paste Analyzer ( slump, tack, wetting, solder ball, spread), all-in-one test.
Long stencil life, Excellent Printing, Minimum slump, High surface insulation resistance, Long tack life.
Electronics Forum | Thu Jan 03 08:02:53 EST 2002 | davef
Slump is a function of the particular paste you select and the temperature of the paste. Use a slump test like the one that follows to compare fluxes. Slump Test Step Process activity 1 Print paste on white ceramic substrate or microscope sli
Electronics Forum | Fri Apr 27 11:24:53 EDT 2007 | realchunks
Hi Steve-O, Good question(s). This process was set-up by an engineer that had a PhD in statistics, took him a year to develop and then thru it over the wall at us. The biggest problem we saw was SPC to measure solder volume. SPC is good for measu
Industry News | 2013-06-28 18:52:56.0
IPC announced today the May findings from its monthly North American Printed Circuit Board (PCB) Statistical Program. The PCB book-to-bill ratio stayed strong for the sixth consecutive month, remaining at 1.10, an indication that recovery from nearly a two-year slump may be starting.
Industry News | 2016-03-02 13:33:49.0
IPC announced today the January 2016 findings from its monthly North American Printed Circuit Board (PCB) Statistical Program. Sales and orders slumped in January, but orders continued to outpace sales, bringing the book-to-bill ratio up to 1.04.
Technical Library | 2016-11-30 21:30:50.0
Mid-chip solder balling is a defect typically associated with solder paste exhibiting poor hot slump and/or insufficient wetting during the reflow soldering process, resulting in paste flowing under the component or onto the solder resist. Once molten, this solder is compressed and forced to the side of the component, causing mid-chip solder balling.This paper documents the experimental work performed to further understand the impact on mid-chip solder balling from both the manufacturing process and the flux chemistry.
Technical Library | 2014-10-02 20:10:07.0
Sn3.0Ag0.5Cu (SAC305) is the most popular near eutectic lead-free alloy used in the manufacturing processes. Over the last several years, the price of silver has dramatically increased driving a desire for lower silver alloy alternatives. As the results, there is a significant increase in the number of alternative low/no silver lead-free solder alloys available in the industry recently.In this paper, we'll present the performance and process capability of various low/no silver alloy solder pastes. Data from printability, wetting test, slump test, solder ball test, voiding, etc… will be discussed and compared with the control SAC305 solder paste. Benefits and concerns of using low/no silver alloy solder paste materials will also be addressed.
Events Calendar | Mon Feb 11 00:00:00 EST 2019 - Mon Feb 11 00:00:00 EST 2019 | ,
Webinar: Solder Paste Evaluation & Simple Tricks of the Trade
SMTnet Express, October 2, 2014, Subscribers: 23352, Members: Companies: 14077, Users: 36923 Assembly Process Feasibility of Low/No Silver Alloy Solder Paste Materials Jennifer Nguyen Ranilo Aranda, David Geiger, and Murad Kurwa; Flextronics
| http://etasmt.com/cc?ID=te_news_bulletin,23568&url=_print
• Excessive solder paste slump after printing • Sphere size of solder paste too large for pitch components being soldered • Excessive moisture absorbed by solder paste
Heller Industries Inc. | https://hellerindustries.com/solder-balls-defects/
&place machine Excessive solder paste slump after printing Sphere size of solder paste too large for pitch components being soldered Excessive moisture absorbed by solder paste Solder paste exposed
