TECH A new generation is uncovering the tiny doodles left by engineers on old microchips

Macgyver

Has No Life - Lives on TB
Sorry about the source but the article was good.

Go to source for pics.


A new generation is uncovering the tiny doodles left by engineers on old microchips


Kenton Smith designs circuit boards and has long been fascinated by computers. He was examining chips a few years ago when he found one smiling back up at him.
Courtesy of Kenton Smith

An owl. A sharky looking bullet. The Hindu deity Ganesh. The Yin and Yang sign. All painstakingly selected and etched onto a microchip that measures about an inch square. Each microscopic silicon doodle was the handiwork of engineers at Qualcomm Incorporated, a San Diego-based company that creates wireless technology-related products and services. The engineers slipped the drawings into Qualcomm's Q1650 data decoder with care not to disturb any of the chip's functions.

They were purposeless etchings, never meant to be uncovered.
These doodles, also known as silicon art, chip graffiti or chip art, and dozens others like it, are remnants of tech history—from Silicon Valley's infancy to the early 2000s—when innovation was rapid fire and the tech still had a very human touch. Engineers would add the sketches to their microchip designs in the techie equivalent of signing their artwork. They'd etch them on chips that may end up in your cellphone, laptop or calculator. They spent hours crafting them, even though they were frowned upon by those in the C Suite.

The existence of these doodles came to light decades ago, but social media is discovering them anew. And there is now a small but determined group of online hobbyists working to keep that history alive. They are still cataloguing the miniscule drawings — many smaller than the width of a human hair and can't be seen without a microscope.
These devotees post glossy videos of themselves shucking chips like oysters to see their iridescent insides and the itsy bitsy sketches that may be hidden on them. And they are eagerly saving them from the scrap heap.

"We did it for ourselves"​

Richard Kerr spent 15 years at Qualcomm starting in the mid 1980s.
His first doodle was inspired by his then-4-year-old son, Jesse Kerr, who would ask to help with his chip designs.
"Well, he was into trucks at the time, so I designed a little '56 Chevy pickup truck," Kerr said.
Kerr only recently learned that others had discovered his decades-old doodles, from a friend who found a video on YouTube of the doodle packed Q1650 data decoder. "I was just blown away that somebody actually found it. And then it was like, you know, total memory lane," he said.

"Mine is the shark bullet. Because my son (Jesse) was a body boarder at that time. And so he decided that that was cool because he saw it on somebody's wetsuit," Kerr said.
Many of the doodles came from engineers who weren't doing it for an audience.

"We did it for ourselves," said Willy McAllister, a retired electrical engineer who worked for more than a decade at Hewlett-Packard (HP) and helped craft a chip with the sleek image of a cheetah on it. "Nobody ever expected it to be cracked open 10 years later and marveled at. That was never the point."
The cheetah was picked as a visual representation for an HP project code named after the world's fastest land animal.
McAllister's wife, Monica, sketched the cheetah, which was transferred to the chip. One of the big cat's spots is about 4 microns across — far thinner than a sheet of paper.

Where's Waldo?​

So how did this tiny art make its debut? The late research scientist Michael W. Davidson who ran the optical microscopy laboratory at Florida State University for about decade until his retirement (and death) in 2015 had a microscope he used to photograph integrated circuits. One day in the late '90s while scanning a circuit, he found Waldo. Or at least, the etched outline of Waldo's head.
"Waldo is the first Silicon Creature that we discovered," reads the Silicon Zoo website. "And this led to an exhaustive search for more creatures and construction of the Silicon Zoo gallery."

Davidson built the Silicon Zoo website to record his findings and he was tireless in his search for this art.
"At one point, I would say in '99 it was that the word was out in Tallahassee that we were collecting (chips)," said Eric Clark, who helped Davidson build the site. "We had a mountain of just computer parts and chips."
The site has catalogued dozens of doodles, many that wink to the function of the integrated circuit, like an elephant on a memory chip, or a can o' worms nodding to the many problems a designer faced.
But there are still more out there.

Preserving bits of tech history​

That's where people like Kenton Smith come in. Smith designs circuit boards and has long been fascinated by computers. He was examining chips a few years ago when he found one smiling back up at him.
"I was just opening up a bunch of different types of chips," he said. "And eventually I came to one and it had a smiley face on it. And to find that was one of the best feelings I've ever had in the world."
The discovery led him deep into the world of silicon scribbles, and he now buys bulk chip lots on eBay and regularly posts videos showcasing his finds.
"One of the the driving forces, I think, to buying so much stuff on eBay is that there's always this feeling that if I don't get it, I may never see that chip again," Smith said. "And it's going to be recycled and we'll lose parts of our history."

Smith posts about his finds across various social media, using his @Evilmonkeyzdesignz accounts that have hundreds of thousands of followers among them.
This is a hobby that takes dedication. First you have to find the chips. Then you have to snip them from their casings. Sometimes the chips shatter into pieces. Sometimes acid is needed to eat away at decades old adhesive.
"I go to flea markets almost every week," said the man behind the @CPU_Duke accounts. "I'm looking at boards and I get a feeling for this could be interesting, this is an interesting brand. Could have a doodle on it. An Easter egg." He didn't want to use his real name for privacy reasons.

The microscopic art scene​

The doodles represent an amusing a collision of technology and art.
Albert Folch, a professor at the University of Washington's bioengineering department, is an expert in the field. He has long merged science and art in a program he calls BAIT (Bringing Art Into Technology). The walls in his office are covered in colorful microfluid artwork, which blend scientific photography with artistic flourishes.
For Folch, the micro doodles are a joyful distraction.

"I think it's a lot of fun," he said. "When I was designing chips myself, I never did it. But I think it's something that if it had occurred to me, I probably would have done it, just for fun.

 

Roger Thornhill

Some irascible old curmudgeon
Reminds me of the engraved messages one sometimes found on 33rpm vinyl albums. Between the last groove on the inside of the record and the outer edge of the paper label, there was almost always a lot number or QC inspector's code. Sometimes, though, there was a little poem, joke, or philosophical riddle hand-etched into the disc.
 

Mark Armstrong

Veteran Member
There's something similar in comics--the old-style comics from before these days of comics being done on computers. Back when comics were drawn on Bristol board, the penciled drawings had to be inked. The inkers had to get the ink flowing in the brushes and pens, and had to warm up or limber up, so they would do ink strokes on the back of the artwork. It was the same paper they would be inking on, same texture, just the other side of the paper that would be seen by nobody but those in possession of the original art.

Occasionally, the inker would do sketches on the backside of the Bristol board while warming up. One time my inker did a doodle of John, Paul, George, and Ringo. A common joke was that sometimes the art on the back of the Bristol board was better than the art on the front of the Bristol board.
 

bracketquant

Veteran Member
Reminds me of the engraved messages one sometimes found on 33rpm vinyl albums. Between the last groove on the inside of the record and the outer edge of the paper label, there was almost always a lot number or QC inspector's code. Sometimes, though, there was a little poem, joke, or philosophical riddle hand-etched into the disc.
I remember seeing that on bootleg vinyl.
 

UglyBird

Contributing Member
There was a story going around in the mid-80's about how the Soviets were copying our processor chips. They claimed they didn't copy anything and their chips were completely homebuilt from scratch, except...

There was a popular CPU called a Z80 that was used in many designs just as PC's were coming to be. The Soviets had a Z80 clone (called the Z80-ski) that used exactly the same instruction set as a Z80. Finally somebody got ahold of a Z80-ski chip and removed the encapsulation to reveal the raw chip. A picture of the raw chip was posted in several trade publications. One of the original US designers (probably an Ohio State graduate) saw it and pointed out that it was, as expected, an exact copy of the US version. How did he know? The word "Ohio" was spelled out in some of the trace routing.
 

Publius

TB Fanatic
The entire process of making many of these chips was at one time using photo etching and putting such images on the chips would be easy just add the image before shrinking it down to micro size and there you have it.
The clean room process of making the micro chip is whole different story.
 

dioptase

Veteran Member
It's doable, but it can be risky. I heard of a case (my company, I think) where the metal layer on the "fun" artwork was done too narrow. Whoever did it violated design specs for minimum width, because it was just art, and looked better with skinnier "lines". The artwork was not functional circuitry, it was off down in a corner of the chip, so following the rules wasn't really important, right?

Pieces broke off in fab (fabrication process) and floated off, causing shorts elsewhere on the chip. Anywhere and everywhere else there was metal to be shorted. They must have had a fun time debugging that!

(The project managers must have been screaming at the delays.... once they finally found and fixed the problem they would have had to go "tape out" (fab) again, so there was at a minimum the extra fab cost and delay to get the new chips back (which may have still had OTHER bugs), if not also a delay-to-market and consequential loss of market share (more cost, in loss of profit). Costly mistake! One I bet that group never made again!)
 
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Safetydude

Senior Member
Reminds me of the engraved messages one sometimes found on 33rpm vinyl albums. Between the last groove on the inside of the record and the outer edge of the paper label, there was almost always a lot number or QC inspector's code. Sometimes, though, there was a little poem, joke, or philosophical riddle hand-etched into the disc.
Or Like on one Monty Python Album, one side had a dual (parallel) track! Drove me nuts trying to figure it out. Finally used the cue level and bingo found the "lost" track.

I remember back in the 80's some Soviet chips were obtained and decanted and low and behold, the Intel logo on the corner of the die as the Russians basically made images of each layer to make their masks to replicate the chips. IIRC, they were the old TTL technology so really large scale geometry compare to today's sub-micron processes.
 

Txkstew

Veteran Member
When Autocad came into use, some drafters/Autocad operators, would zoom way in and do some doodling on a "Blueprint" drawing. You had to look real close, or zoom in to that part of the drawing to make out what was drawn. On a busy drawing, it just looked like a dot on a full size D drawing. It might be a moma duck with six ducklings swimming across a stream.
 
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