Valley Services Electronics

Silicon Valley’s Premier Electronic and PCB Assembly Blog

PCB Surface Finish: Preparing for Assembly

One of my first neighborhood jobs growing up was washing cars. With my dad’s trusted shammy, I would go around the block cleaning exteriors and vacuuming interiors to save a few bucks for video games. Part of my toolkit was wax – I didn’t understand its true purpose, but I could see the difference between…

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analog PCB layout guidelines

PCB vs. PCBA: From Bare Board To Final Assembly

I wrote a letter to a former teacher the other day, and given his impact on my career, I wanted to ensure I presented myself well. I used online tools to smooth over spelling and grammatical errors, but upon a reread, I realized I had used some imprecise (yet roughly synonymous) language. Most wouldn’t notice…

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Mixed-Signal PCB Design Best Practices

While smaller and more powerful electronics delight users, engineering these marvels can challenge the printed circuit board designer. Electronics used to contain multiple boards for digital processing, power supply, and analog functions, but that functionality typically packs into one dense PCB design in today’s devices. Analog circuitry takes sensory inputs and converts them into digital…

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The characteristic impedance of transmission lines starts with the board stackup.

ENIG – Electroless Nickel Immersion Gold Surface Finish

Many people look at gold purely for its monetary value, but engineers see things differently: gold is exceptional due to its remarkable corrosion resistance. This property is a lifeline for PCBAs with high-reliability requirements and those operating in demanding environments. In a perfect world, function and performance would trump expense, but the reality is that…

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pcb first article inspection process

How to Choose a PCB Manufacturer

After completing the PCB layout, the next step for first-time designers will be determining how to choose a PCB manufacturer. Like most services, there’s a range of quality outcomes depending on the design requirements and allotted budget. A PCB production cobbled together across multiple manufacturing sites may save money upfront, but design stages may lack…

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