Connect the Dots: Total Value Manufacturing Solutions
Fresh PCB Concepts: IPC-6012 Class 3 and High-reliability PCB Manufacturing
Elementary, Mr. Watson: The Display Revolution, Now With Fewer Tiny Keys
A New Materials Paradigm
As you’ll see in this month’s issue of Design007 Magazine, slash sheets such as IPC-4101/126 were never meant to be used by designers when comparing PCB laminates. These documents were created to facilitate communication between purchasing and customer service departments. You could say that slash sheets are made for administrative purposes, not engineering.
As the captain said in 'Cool Hand Luke,' “What we’ve got here is a failure to communicate.” IPC does offer several design guidelines, created specifically for PCB designers, including one just for flexible circuits. But there isn’t such a guideline for high-speed designs.
Our expert contributors examined the development of IPC slash sheets and suggest that there is a need for new, robust material guidelines created specifically for PCB designers.
We also discuss the dangers of over-specifying materials, particularly for offshore manufacturing, as well as the many risks and trade-offs associated with laminate selection.
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