Printed Circuit Design & Fab Online Magazine - Features

Features

The electronics assembly industry (along with a few fabricators) agrees that better times are ahead in 2014.

IPC Apex Expo in late March was judged by most to be a success, with attendance showing some signs of life, and a lot of machines listed SOLD signs.

Results of a cross-industry team’s development and testing of a PCB-based embedded chip technology for an under-the-hood automotive application.

Over the past five years, laminated-based chip embedding has taken a huge step toward industrialization.

Stencil design software has evolved from simple rule checkers to custom, sophisticated engineering tools.

QFNs, microBGAs and 0201s keep showing up everywhere. They used to appear only on boards requiring miniaturization; now they are used on revisions of legacy products, bringing a new set of headaches for process engineers.

Constant evolution has turned Murrietta into one of the West Coast’s leading design-to-assembly manufacturers.

After visiting scores of one-story manufacturing sites, the first impression one gets when walking up to Murrietta Circuits is its size.

FAI is a subset of qualification data, and insufficient for design verification.

When key performance characteristics are critical to system performance, engineering will want to create a source control drawing in accordance with ASME Y14.24. The source control drawing will list specific supplier(s) that have been qualified to produce the product identified in the drawing. Engineering wants to use a source control drawing because the parts’ characteristics are critical to the design, and they do not want the parts procured from an uncharacterized source of supply.

A simple, yet data rich, nondestructive method for material characterization.

PCB performance strongly depends on the laminate material’s dielectric constant (Dk) and dissipation factor (Df) related to complex dielectric constant, ε = ε’ – jε” through Dk=ε’/ε0 and Df=ε”/ ε’. Complex permittivity can be measured using a number of techniques, including waveguide, cavity resonator, open resonant cavities, split-post dielectric resonator and free-space techniques.

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Features

Good Values in Vegas

The electronics assembly industry (along with a few fabricators) agrees that better times are ahead in 2014.

Power Electronics Packages with Embedded Components – Recent Trends and Developments

Results of a cross-industry team’s development and testing of a PCB-based embedded chip technology for an under-the-hood automotive application.

Automating Stencil Design

Stencil design software has evolved from simple rule checkers to custom, sophisticated engineering tools.

The One-Stop SoCal Shop

Constant evolution has turned Murrietta into one of the West Coast’s leading design-to-assembly manufacturers.

Qualification vs. First Article Inspection

FAI is a subset of qualification data, and insufficient for design verification.

Free-Space Technique for Measurement of PCB Laminate Materials

A simple, yet data rich, nondestructive method for material characterization.

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