JSCalc

The design shown here is a good one to use for radios, it’s a quarter-wave antenna. It has a single vertical element suspended over a … Read More

A solder paste volume calculator takes a stencil’s aperture geometry to generate four values. These include the volume of paste deposited into each opening, total … Read More

Rarely does a printed circuit board travel solo. More often than not, it’s part of a family that travels together on a big sheet of … Read More

Once your fabricator has pressed those layers together, some PCB designer needs to know how thick the final board becomes. It sounds like a trivial … Read More

You may have seen the terms “1 oz” or “2 oz” listed as copper weight specifications on a circuit board drawing. However, those terms might … Read More

How much resistance does one plated through hole contribute to a net? This is something that tripped up many hardware designers, but there’s an answer … Read More

Traveling through a barrel in a via means moving from one layer to another. That barrel is a very small tunnel of copper, and frequently … Read More

When everything is designed at high speeds, every detail counts. A small change in signal trace impedance can transform a pristine signal into an unusable … Read More

You trusted the trace width and never checked its thickness, you assumed the dielectric was uniform when it wasn’t… Something that passes signal integrity test … Read More

When impedance mismatch causes a signal to reflect off a badly matching trace for the first time, it doesn’t look like an error on a … Read More