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In this issue, we discuss some of the challenges, pitfalls and mitigations to consider when designing non-standard board geometries. We share strategies for designing odd-shaped PCBs, including manufacturing trade-offs and considerations required for different segments and perspectives.
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IPC Standards Committee Reports – Packaged Electronic Components, Flex Circuits, High Speed/High Frequency, Rigid Printed BoardsDecember 7, 2015 | IPC
Estimated reading time: 4 minutes
Packaged Electronic Components
The B-11 3-D Electronic Packages Subcommittee continued work on IPC-7091, Design and Assembly Process Implementation of 3-D Components. There has been significant interest in this standard from both the military and commercial markets, and the subcommittee is ensuring groups doing similar work are included in the efforts for IPC-7091.
The D-11 Flexible Circuits Design Subcommittee met to advance the Working Draft to IPC-2223D, Sectional Design Standard for Flexible Printed Boards. The group reviewed and approved new drawings depicting flexible cross-sectional construction examples and unbonded flex cross-sectional constructions for rigid-flex designs. The group also reviewed new content addressing the factors that affect impedance and capacitance control for flex and rigid-flex printed board applications so as to mitigate signal integrity issues.
The D-12 Flexible Circuits Performance Subcommittee met to advance the Working Draft to IPC-6013D, Qualification and Performance Specification for Flexible Printed Boards. The group also reviewed a cross-sectional illustrations that address voiding or delamination in the transition zone between flexible material and rigid material. The group also reviewed examples of anomalies in flexible printed board assemblies (e.g. kinks in the ribbon cable following assembly operations) and agreed to submit recommendations to the IPC 7-31b task group for addressing these issues in a future revision to IPC-A-610, Acceptability of Electronic Assemblies.
The D-13 Flexible Circuits Base Materials Subcommittee began review and updating of IPC-4202A to ultimately revise it to B revision.
The D-15 Flexible Circuits Test Methods Subcommittee began to review all flexible circuits test methods for relevance to all materials, printed boards and design standards. Most if not all test methods that apply to old flexible circuits (those that begin with “FC” are likely to be obsolete and will likely be archived.
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One of my great joys as a grandfather of eight is spending time with them at the park. It doesn't take too long until I'm getting stuck on a slide that is too small for me or on the seesaw, with me on one side and them trying to lift me. At that point, they learn some harsh lessons in physics and how heavy Grandpa really is. A seesaw is a relatively simple device, but it’s a great way to explain a rather complex concept in PCB design: design tradeoffs. Each decision made throughout a design comes with inherent pros and cons.
Spirit AeroSystems, Inc. announced the grand opening of its Engineering Design Center in Subang, Malaysia, that expands the company’s global engineering capabilities, during opening day of the 2024 Singapore Air Show.
It’s been another busy week in the industry. We lost another old friend last week. The EIPC show happened, and Pete Starkey provided us with complete and compelling show coverage, from start to finish. Recently, we posed the question, “When is it time to introduce embedded components into your PCB design?” which was asked and answered by design aficionado Kris Moyers in the latest issue of Design007 Magazine. We are proud to be a part of the exciting Global Insights weekly newsletter, which Nolan Johnson and Brian Knier explored in their interview, and we rounded out the week with some big merger news. Here are my picks for the past week’s must-read news items.
ROCKA Solutions is pleased to announce its partnership with Vega Industries, Inc., a manufacturer of premium-quality driver bits and fastener driving tools. Under this collaboration, ROCKA Solutions is a distributor for Vega Industries' top-notch tools designed for precision and durability.
Aismalibar will be attending the APEC, the leading conference for practicing power electronics professionals, in Long Beach, California from February 25th to 29th, 2024 in Booth 552. Aismalibar will be presenting new cooling technologies for power electronics, specifically Thermal Interface Materials (TIMs) and Insulated Metal Substrates (IMS).