The New SEMI SMT-ELS Standards Suite for SMT and PCBA Lines

With an estimated 80,000 SMTP lines in use standards are a lifeline for line operators and equipment and software developers worldwide. SEMI is developing a suite of standards for SMT and PCBA... [more]

Designing and Analyzing High Frequency Interconnects

High frequency PCB designs carry a unique set of challenges due to concentration of signal power in a narrow bandwidth. To design high frequency interconnects, designers must consider an entire... [more]

Reverse Engineering PCBs: How to Recreate a Lost Design

Maintaining a product is very difficult when: The source files aren’t available Only Gerber files and maintenance documents are available Making a revision to a company-owned product with no... [more]

Does a Differential Pair Need a Return Plane?

A differential pair is any two transmission lines. When each transmission line has a return plane, its pretty clear how the differential impedance is related to the geometry. But what if there is no... [more]