Electronics Forum | Fri Dec 15 14:42:35 EST 2006 | russ
we have has to alter some footprints to facilitate component rework/removal. We have some assemlies that have 2 oz and heavier copper, these boards require a lrger tip to melt solder so we have had to extend pads to allow the larger tips to touch pa
Electronics Forum | Tue Feb 03 03:35:30 EST 2009 | sachu_70
Hi Jose, such a process is possible, but you need to confirm that the PCB material has high Tg. In additon, you need to re-look solder paste printing parameters and make required changes in stencil apperture design for optimum solder volume. Just a
Industry News | 2014-05-31 13:05:49.0
Kyzen announces plans to exhibit in Booth #5752 at SEMICON West 2014, scheduled to take place July 8-10 at the Moscone Center in San Francisco, CA.
Technical Library | 2019-09-04 21:35:53.0
Since the European Directives, RoHS (Restriction of Hazardous Substances) and REACH (Registration, Evaluation, Authorization and Restriction of Chemicals), entered into force in 2006-7, the number of regulated substances continues to grow. REACH adds new substances roughly twice a year, and more substances will be added to RoHS in 2019. While these open-ended regulations represent an ongoing burden for supply chain reporting, some ability to remain ahead of new substance restrictions can be achieved through full material declarations (FMD) specifically the IPC-1752A Class D Standard (the "Standard"), which was developed by the IPC - Association Connecting Electronic Industries. What is important to the supply chain is access to user-friendly, easily accessible or free, fully supported tools that allow suppliers to create and modify XML (Extensible Markup Language) files as specified in the Standard. Some tools will provide enhancements that validate required data entry and provide real-time interactive messages to facilitate the resolution of errors. In addition, validation and auto-population of substance CAS (Chemical Abstract Service) numbers, and Class D weight rollup validation ensure greater success in the acceptance of the declarations in customer systems that automate data gathering and reporting. A good tool should support importing existing IPC-1752A files for editing; this capability reduces the effort to update older declarations and greatly benefits suppliers of a family of products with similar composition. One of the problems with FMDs is the use of "wildcard" non-CAS numbers based on a declarable substance list (DSL). While the substances in different company's lists tend to have some overlap, no two DSL’s are the same. We provide an understanding of the commonality and differences between representative DSLs, and the ability to configure how much of a non-DSL substance percent is allowed. Case studies are discussed to show how supplier compliance data, can be automatically loaded into the customer's enterprise compliance system. Finally, we briefly discuss future enhancements and other developments like Once an Article, Always an Article (O5A) that will continue to require IPC standards and supporting tools to evolve.
RoHS: Five Years Later RoHS: Five Years Later by: Dr Ronald C. Lasky; Indium Corporation of America Are electronics any "greener" than before RoHS? It is a fair question to ask. With the advent of RoHS on July 1, 2006, and more recently REACH
SMTnet Express, March 16, 2017, Subscribers: 30,295, Companies: 15,177, Users: 42,073 Best Practices for RoHS Compliance in support of CE Marking Randy Flinders; GreenSoft Technology, Inc. In 2012, The European Directive on Reduction of Hazardous
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-global.com RoHS II 2011/65/EU Declaration of Compliance With regard to European Union Directive 2011/65/EU as amended by Commission Delegated Directive (EU) 2015/863