Need to know how well a tin, silver, and lead alloy works to mitigate tin whisker growth? How about a standard for testing products for whisker growth or a template to send to component suppliers so you can obtain materials content is a standard format? There has been proliferation of information on the Web to help those making the conversion to green products. Here’s a sampling:
The National Electronics Distribution Association posts a number of useful guidelines on its site. This includes everything from guidelines on how to recycle PVC in semiconductor packing to a product information sheet that works as a template for component suppliers to submit compliance information for lead-free parts to their customers.
SolderTec Global, which is presented by Tin Technology Ltd., includes information on lead-free solders and coatings from a global perspective. The site presents results on tin whisker testing as well as a view of compliance developments and technical information on lead-free developments.
IPC – The Association Connecting Electronics Industries – offers standards on tin whisker testing as well as guidelines on how lead-free components should be labeled. IPC has also released guidelines on how companies should communicate the material content of their components and finished products. In additional to standards and guidelines, the site presents research on tin whiskers, solder, components, and printed circuit boards.
The International Electronics Manufacturing Initiative site presents the results of its work to develop and test lead-free solders and coatings. Research includes papers and presentations that detail lead-free assembly and rework, lead-free wave soldering, tin whisker modeling, and more. The site is also a good source to find conferences and presentations on the conversion to lead-free electronics.
NASA Goddard Space Flight Center Tin Whisker Home Page
This site is for diehards in tin whisker research. The site goes beyond tin to look at silver whiskers. Content includes an archive of older research as well as new contributions. The emphasis is on NASA applications, but the site looks at commercial applications as well. One interesting collection is a lost of real-world tin whisker failures including non-NASA satellites.
Component Manufacturer Sites
A number of manufacturers such as Texas Instruments present wide ranging information and industry links on the conversion to lead-free components and products. As well as presenting information on their own components, large component manufacturers such as Texas Instruments also gather useful information from across the electronics industry.