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The Year of Staying Employed
The aging (graying, some say) of the printed circuit board design field continues, or so says our annual survey of the industry. What 400 designers have to say about their chances for survival in the era of automation and outsourcing.
By Chelsey Drysdale
SEA/NPI Awards
A pictorial look at some of the 2010 winners of the CIRCUITS ASSEMBLY Service Excellence Awards (SEA) for best-in-class customer service and the PCD&F/CIRCUITS ASSEMBLY New Product Introduction (NPI) Awards for the best new product during the past 12 months.
Caveat Lector
Ride with Jeff.
Mike Buetow
Database
One designer’s winning pitch.
Pete Waddell
Competency confusion.
Peter Bigelow
Final Finishes
No masking these changes.
Lenora Toscano
Cover Story
Frequency Loss Effect of Conductor Profile on the Insertion Loss, Phase Constant and Dispersion in Thin High Frequency Transmission Lines
Increasing conductor roughness alone increases the effective Dk in thin circuitry by up to 15%, while substantially increasing dispersion.
Allen F. Horn III, Ph.D., John W. Reynolds, Patricia A. LaFrance and James C. Rautio, Ph.D.
RF Design
Choosing an RF Design Environment Flow
You can’t build a house without blueprints. So why do so many RF design flows try to build a board without a schematic?
by Abby Monaco
Cautious Optimism in China
Exhibitors were cautious rather than shell-shocked, and even with a wobbly recovery underway, they have seen a marked increase in business.
by Matthew Holzmann
Memory Interface Speed Solutions
Higher performance requirements reduce timing margins on interfaces, thus imposing strict rules on board routing.
by Hal Katircioglu
New Year, New Outlook
An uptick in attendance on the floor overshadowed a lack of innovations in the booths.
By Mike Buetow and Chelsey Drysdale
First Person
EMS hot for LED.
Mike Buetow
Sayonara, electronics engineering?
Pete Waddell
Money Matters
Printed electronics: process revolution?
Randall Sherman
ROI
Bad grades.
Peter Bigelow
Tech Talk
On the Forefront
Inside the iPad.
E. Jan Vardaman
Designer’s Notebook
It’s the data, stupid!
Michael Dreyer
Process Improvement
The DfM Continuum
Design and manufacturing often are thought of as separate processes, with some interdependencies. But absent a feedback loop, development will be marred by unnecessary defects and re-spins.
by John Isaac and Bruce Isbell
Signal Integrity
Open 'Eyes' in the Frequency Domain
Although final performance is measured in the time domain, a detour may be the faster route to a signal integrity solution.
by Dr. Eric Bogatin
Materials Engineering
Heat Transfer in LED Assembly
LEDs may seem cool to the touch, but they all produce heat. So while they offer significant benefits over filament and fluorescent lighting, dissipating heat within an LED assembly involves the selection and use of thermally conductive and (usually) electrically insulating materials.
by Chuck Neve
Sherman's Market
No more dips for chips.
Sandra Winkler
Database
Back to school.
Pete Waddell
ROI
Fixing process improvement.
Peter Bigelow
Focus on Business
Improve workers' lives, improve the bottom line.
Susan Mucha
Real World EMC
Designing out radiated emissions.
Dr. Eric Bogatin
Final Finishes
Process flow and routine analysis.
Lenora Toscano
Getting Lean
Balancing tradeoffs of waste elimination.
Ryan Wooten
Technical Abstracts
In case you missed it.
Off the Shelf
Impedance Control
Accurate Impedance Control, Part II
Choosing the right method for determining impedance control of multi-GHz or multi-Gb boards.
by Istvan Nagy
Signal Integrity
Designing PCBs with High-Speed Constraints
SI rules must take into account signal quality, timing and crosstalk.
by Patrick Carrier
Cover Story
Could Printed Electronics Replace Traditional Electronics?
Over the next 10 years, printed electronics will make gains in RFID, displays, packaging, ICs, and alternative energy. But a glorious future isn't set in stone.
by Randall Sherman
CIRCUITS ASSEMBLY Top 50
The Trials of 2009
When it comes time to write the story of the EMS industry in 2009, foremost will be the effects of the recession. The subtext, however, will be the dramatic fall of Elcoteq, whose final chapter is still being written. Plus: The 50 largest EMS companies.
by Mike Buetow
Database
Scary thoughts on DfM.
Pete Waddell
Global Sourcing
Getting vertical.
Rex Green
ROI
Merger mania strikes again.
Peter Bigelow
Designer's Notebook
Defining PDN impedance.
Dr. Zhen Mu
On the Forefront
Can Japan stay committed to R&D?
E. Jan Vardaman
Tech Tips
Component reliability for RF applications.
ACI Technologies Inc.
Solar Technologies
Frontside silver conductor line efficiency.
Tom Falcon
Off the Shelf
DfA
Component Layout in Placement Processes
Effective, accurate component placement takes into account the best practices of design and assembly, both of them inextricably intertwined. Positioning CSPs and noise-sensitive devices are two of a host of considerations.
by Zulki Khan
Copper Plating
Improved Electrolytic Copper Plating for Flex PWBs
A novel electrolytic copper-plating process is said to provide flex circuit manufacturers a new option for meeting system performance requirements, while maintaining or improving product interconnection and mechanical reliability.
by Hiroshi Hoshiyama, Shinjiroh Hayashi, Makoto Sakai and Rikiya Shimizu
CAD-CAM
PCB Data Preparation
What happens to CAD data once it is released to manufacturing? A veteran designer describes what happens to a typical job once it leaves his facility and reaches manufacturing.
by Jack Olson and Mike Tucker
Sherman's Market
Riding the EMS rollercoaster.
Randall Sherman
Database
Microwave heats up.
Pete Waddell
Global Sourcing
When offshoring works best.
Rob Duvall
ROI
Back to basics.
Peter Bigelow
EMC for the Real World
Grover on inductance.
Dr. Eric Bogatin
The Defects Database
Rethinking black pad.
Dr. Davide Di Maio, Ph.D.
Test and Inspection
IEEE test standards 'speed' toward resolution.
Jun Balangue
Getting Lean
Sequentially implementing Lean and Lean Sigma.
Carlos Rodriguez
Off the Shelf
CAM
Improving Fabrication Yields
A large portion of manufacturing yield is tied up in the CAM process, and these "fabrication planners" can make the difference between profits and losses. Plus: The designer's role.
by Zulki Khan
EDA Tools For Today and Tomorrow
'We Need to Facilitate Faster, Smarter Design'
Leading design and layout tool suppliers talk about their software, designers' needs, the industry's biggest challenges, and why FPGAs could do for PCB designers what microprocessors did for their digital forerunners.
by Pete Waddell
Design Tools
Predicting PCB Density
Comparing design data requirements to design resources can result in better electronic performance at a reduced cost. A density-predicting calculator is a tool that performs a tradeoff analysis at the feasibility stage, given the constraints of the assigned area.
by Ruth Kastner and Eliahu Moshe
Productronica Recap
Trading Up
For the first time in 10 years, we saw the sun in Munich. Is it a sign of a new dawn for the industry? OK, no, but amid tepid expectations, Productronica turned out stronger than expected, again defying gravity and the pundits to remain the mother of all trade shows.
by Mike Buetow
Database
The design game.
Pete Waddell
ROI
Resolutions for a new year.
Peter Bigelow
Focus on Business
Hiring's golden age.
Susan Mucha
Designer's Notebook
Enclosed in.
John Isaac
Better Manufacturing
Improving test coverage by design.
Andrew Murrietta
The Defects Database
Plating-related opens.
Dr. Davide Di Maio, Ph.D.
Solar Technologies
Solar Power International was a return to the past.
Chrys Shea
Tech Tips
Boundary scan extends its use.
ACI Technologies Inc.
Off the Shelf