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FEATURES

MATERIAL PERFORMANCE
Free-Space Technique for Measurement of PCB Laminate Materials
PCB performance strongly depends on laminate dielectric constant and dissipation factor related to complex dielectric constant. Among the methods for measuring complex permittivity are waveguide, cavity resonator, open resonant cavities, split-post dielectric resonator and free-space techniques. The latter offers a simple, yet data rich, nondestructive characterization method.
by Mike Miller

DESIGN QUALIFICATION
Qualification vs. First Article Inspection
Military and commercial product suppliers often overlook what is being asked by their customer when they are asked to qualify a part. What’s more, there’s a disconnect between what FAI is and whether it is a sufficient technique for design qualification.
by Charles Hill and Karen Ebner

MURRIETTA CIRCUITS
The One-Stop SoCal Shop
For over 30 years, the family-run Southern California company has been adding services to its printed circuit roots.
by Chelsey Drysdale

FIRST PERSON

• CAVEAT LECTOR
  Man vs. machine.
  Mike Buetow

MONEY MATTERS

• ROI
  No flex in circuits industry.
  Peter Bigelow
  
  

• FOCUS ON BUSINESS
  Getting the deal on paper.
  Susan Mucha

TECH TALK

• DESIGNER’S NOTEBOOK
  Changing copper weight.
  Noah Fenley
  

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