Hair Today Gone Tomorrow: Four Men Go To Fix A Wafer Prober

I’ve had a fairly varied early part of my career in the semiconductors business: a series of events caused me to jump disciplines a little bit, and after one such event, I landed in the test engineering department at Philips Semiconductors. I was tasked with a variety of oddball projects, supporting engineering work, fixing broken ATE equipment, and given a absolute ton of training: Good times!  Here’s a story that comes straight off the oddball pile.

We needed to assemble a crack team of experts and high-tail it to deepest darkest Wales, and sort out an urgent production problem. The brief was that the wafer probe yield was disastrous and the correlation wafer was not giving the correct results. Getting to the punch line is going to require some IC fabrication background, but if you like stories about silicon, or red-bearded test engineers, it’s worth it. Continue reading “Hair Today Gone Tomorrow: Four Men Go To Fix A Wafer Prober”

Santa’s Beard-Combing Robot

Working all year long, herding elves and fabricating toys for all the good boys and girls; it takes dedication. It’s only natural that one could fall behind in beard care, right? This year, [Norbert Zare] saves Christmas with his beard-combing robot.

OK, this is much more of a shitty robot in the [Simone Giertz] school of wicked funny machines than it is a serious robotics project. But props to [Norbert] for completeness — the code that wiggles the two servos that get the job (almost) done is even posted up on GitHub.

Check out the video below the break. Ho ho ho!

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Ask Hackaday: I Love The Smell Of Burnt Hair In The Morning

At the end of the 19th century, [King Camp Gillette] had the idea of creating a disposable razor blade that didn’t need sharpening. There was one problem with this idea: metallurgy was not yet advanced enough to produce paper-thin carbon steel blades and sharpen them for a close shave. In 1901, [William Nickerson] solved this problem, and the age of disposable razors began.

The Skarp laser razor. Source
The Skarp laser razor

This Kickstarter would have you believe there is a new era of beard technology dawning. It’s a laser razor called Skarp, and it’s on track to become one of the most funded Kickstarters of all time. The only problem? Even with relatively good documentation on the Kickstarter campaign, a demo video, a patent, and an expert in the field of cosmetic lasers, only the creators can figure out how it works.

Instead of using technology that has been tried and tested for thousands of years, the Skarp uses a laser to shave hairs off, right at the surface of the skin. You need only look at a billboard for laser hair removal to realize this is possible, but building a laser razor is something that has eluded us for decades. This patent from 1986 at the very least demonstrates the beginnings of the idea – put a laser beam in a handheld package and plunge it into a beard. This patent from 2005 uses fiber optics to send a laser beam to a handheld razor. Like anything out of the sci-fi genre, a laser razor is a well-tread idea in the world of invention.

But Skarp thinks it has solved all of the problems which previously block lasers from finding a place in your medicine cabinet.

Continue reading “Ask Hackaday: I Love The Smell Of Burnt Hair In The Morning”