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July 11, 2019
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Mark Thompson, CID, Prototron Circuits |
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Editor’s note: The following is an excerpt from Chapter 1 of The Printed Circuit Designer’s Guide to... Producing the Perfect Data Package
Deciding on the class of the final product will determine what files are needed for fabrication and assembly. It is critical to note that for a product to be built to any class level, it must be designed to that class level from its inception.
Standards and Specifications
Let’s review the various PCB classes as defined by IPC—Association Connecting Electronics Industries. IPC is the trade association for the electronics industry that provides standards, training and certification, market research, education, and public policy advocacy to support all facets of the industry, including design, PCB manufacturing, and electronics assembly.
First, understand that IPC has different specifications depending on the PCB type. ... More >
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Words of Advice: What are Your Biggest Problems Related to Flex Design?
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In a recent survey, we asked the following question: What are your biggest problems related to flex design? Here are a few of the answers, edited slightly for clarity:
- We are lagging in technology.
- None…design them correctly!
- Stress cracking in FPC ZIF fingers.
- We need to work more closely with our FPC fab vendors.
- Signal integrity of signal paths through the flex and rigid parts of the PCB.
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Tim Haag, Consultant
Whether baking a cake or building a circuit board, it’s all about clear communication. If the person writing the recipe had not made the choice to clearly communicate what their intentions were for baking that cake, I would have been lost. A missing ingredient here or an incorrect oven temperature there and my birthday surprise would have ended up in the garbage in the same way a successfully built circuit board starts with clear communication from the designer. Circuit board manufacturers want to create a perfect PCB for you, but they can only do so to the extent of the instructions that you give them.
More >
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- Development Chemist - Carson City, NV, Taiyo America
- Technical Sales Engineer - San Jose, CA, Taiyo America
- Technical Support/Sales Engineer, U.K., Ventec International Group
- Analyst Programmer, Hong Kong, CML
- Printed Circuit Board Solutions: Opportunities Await, APCT Inc.
- Multiple Positions Available, Indium Corporation
- Service Engineer Reflow Soldering Systems (m/f), Rehm Thermal Systems
- Vision and Machine Learning R&D Engineer, Koh Young America
- Field Service Engineer: Multiple U.S. Locations, Koh Young America
- We Are Recruiting!, Electrolube
- SMT Field Technician Huntingdon Valley, PA, Manncorp
- Sales Representatives (Specific Territories), U.S Circuit
- Sales Personnel, Japan, Gardien
- IPC Master Instructor, BlackFox
- Hiring Multiple Positions, Zentech
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| Current Design007 Magazine Table of Contents |
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This month, we look into the secret life of vias as the culprit for failures, starting with an article by Greg Ziraldo, director of operations at Advanced Assembly. He explains how to design vias for maximum reliability, echoing the idea that “When it comes to vias, bigger is better...
Download the PDF of this magazine to your library.
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FEATURES:
PCB Reliability: Via Design, by Greg Ziraldo, Advanced Assembly
The Difference Between Quality and Reliability, a conversation with consultant Denny Fritz
IPC Reliability Forum Wrap-up, a conversation with IPC’s Brook Sandy-Smith
Altium Designer 19.0 Features Printed Electronics Design Functions, a conversation with Nikolay Ponomarenko, Altium
Mentor Tools: Optimized for Flex and Rigid-flex Design, a conversation with David Wiens, Mentor, a Siemens business
Development of Flexible Hybrid Electronics, by Weifeng Liu, et at, Flex
26 Meters of Flex! a conversation with Philip Johnston and Jake Kelly, Trackwise Designs
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