Author Archives: nexlogic

Stepping Through BGA Signal Escape Routing

Signal escape routing associated with the highly advanced ball-grid array (BGA) package is definitely not an easy task. Rather it’s highly challenging and poses critical PCB designer decisions along the multitudes of routes involved in getting those signals out. One has to keep in mind that PCBs continue to become smaller, especially those rigid-flex and […]

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IoT PCB thermal profiles are not created equal

Like all printed circuit boards (PCBs), an IoT rigid-flex or flex circuit undergoes the reflowing process to make necessary circuit connections on those small boards. A correct and accurate thermal profile is the linchpin in this key reflow process. It’s easy to go into all the technical details associated with a thermal profile. But for […]

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Three key criteria in an IoT PCB stencil design

Designing a stencil for a conventional rigid printed circuit board (PCB) is challenging enough in this day and age, but designing a stencil for a much smaller IoT rigid-flex or flex circuit takes on a considerably new meaning. On its surface, a stencil looks a bit like kitchen tinfoil, but is made of extremely thin […]

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Transmitting signals in an IoT PCB

Effectively transmitting electronic signals in an IoT product relies heavily on how device packaging, traces, routing and vias are designed in IoT rigid-flex or flex circuitry. Component or device packaging includes micro ball grid arrays (micro BGAs), quad-flat no-leads (QFN) and dual-flat no-leads (DFN). These electronic device packages are less than the size of a […]

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DOEs Rescue Doubtful Medical Electronics PCBs

Design of experiments or DOEs represent a recent advancement in the continuing challenge for achieving highly reliable medical electronics PCBs. DOEs extend well beyond the extensive nature of a PCB cleaning process. That means DOE practices and procedures focus on investigating and resolving out of the ordinary problems. These are unforeseen and difficult to define […]

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Protecting the DUT During PCB Assembly

The device-under-test or DUT site or sites is the most critical part of an ATE PCB. That’s where a component or chip is placed for testing. There can be one or more DUTs on a board, for instance, four DUTs as shown in Fig. 1. Others can be a dual-site board with two DUTs where […]

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Make sure your ATE PCB is Ultra Clean

The main reason ATE PCBs must be properly and comprehensively cleaned is largely due to the DUT. DUT stands for device under test, which is the circuit area on the ATE PCB where your new µP, SoC, FPGA, or any other valuable semiconductor product is to be tested. Special care must go toward eliminating any […]

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Locking in security at the IoT PCB level

The electronics manufacturing services provider designing and assembling IoT printed circuit boards must have a comprehensive understanding of today’s electronics that contribute to an IoT device’s security. Certainly, a great number of software vendors are supporting the IoT products businesses with their versions of security software. However, from a hardware point of view, chipmakers are […]

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Get On the Right Wavelength for RF

RF circuits are designed to pass signals within a certain band. They use band pass filters to transmit signals in a so-called band of interest. The signal within a range of frequency passes through this band range, and the rest of the frequencies of the signal are filtered. A single band can be very narrow […]

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Pump up high reliability for IoT PCBs

The demand for and technology of IoT devices are rapidly passing the consumer market and landing squarely in medical electronics, IT/enterprise, industrial and military markets. And those IoT markets are experiencing dramatic growth. However, those markets are highly demanding when it comes to high reliability. IoT devices in these instances must be reliable to the […]

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