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TECH THE FUTURE
Interconnect Defects (ICDs) Explained
By Doug Trobough
What is an Interconnect Defect (ICD)? An ICD is a condition that can interfere with the internal circuit connections in a printed circuit board (PCB). These internal connections occur where the innerlayer circuit has a drilled hole put through it. PCB processing adds additional copper into the drilled hole to connect the innerlayer circuits together and bring the circuit to the PCB board surface where connectors or components are placed to provide final function.
If there is a defect at or near this interconnect or plating and innerlayer copper, it could lead to failure of a specific circuit (or net). This defect typically causes open circuits, but could be intermittent at high temperatures. Of significant concern is that the functionality may be fine as the PCB is built, but will fail in assembly or usage, becoming a reliability risk. This latency for the defect has put ICDs on the serious defect list in the industry. Another item is that ICDs have increased in frequency over the past five to seven years, making this a higher priority issue. Read More
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20+ Ways to View Your Project
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Sponsored by Percepio
Percepio Tracealyzer visualizes the run-time behavior of your RTOS based embedded software through 20+ graphical views that complement the debugger perspective with the "big picture".
These views are cleverly connected so that you see the runtime behavior of your project from many different angles. As you well know, often the solution to solving a tricky bug involves looking at it from a different angle. Change your point of view, download a free trial version of Percepio Tracealyzer. Continue reading
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To celebrate summer, Elektor Internatonal Media (EIM) is putting running the "Cool Summer Deals" promotion. Here's how it works: EIM will feature new product deal every day (Monday to Friday) throughout the whole of summer! In addition to discounted Elektor products, EIM will also highlight products from exclusive distribution partners, such as Congatec, Conrad, iFixit, Link Sprite Technologies, and Pico Technology ... Continue reading →...»
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ELECTRICAL ENGINEERING CHALLENGE - ANSWER
Sponsored by NetBurner, Administered by Circuit Cellar
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| | Answer to the June 2015 challenge |
The nearby image shows the answer to the June Electrical Engineering Challenge. Congratulations to the winners, as well as to everyone who participated and found the error!
THE CHALLENGE
The next Electrical Engineering Challenge will begin on July 1, 2015. Visit the Challenge Webpage to participate! PRIZESCircuit Cellar will randomly select 2 prize winners from the pool of respondents who submit the correct answer. One person will receive a NetBurner MOD54415 LC Development Kit ($129 value). A second person will receive a Circuit Cellar Digital Subscription (1 year).
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Circuit Cellar #300
July 2015
Editors' Picks: Internet & Connectivity Projects | DIY Sound Recording Android App | MCU-Based WAVE Player | Build a Net-Connected Security Network | Sustainable Performance for Mobile Systems | Magnetic Shielding 101 | Touch Screen LCD Control Panel | Intro to LIDAR Technology | Interconnect Defects Explained | And More
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Last Chance for 30% off!
CC Vault End of School Special
CC Vault is a 16-GB USB drive fully loaded with every issue of Circuit Cellar magazine since 1988. ACT NOW!
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