The Christmas card industry might be fooling most people, but they ain't foolin' me! This season's level of glitter-shedding
cards is at an all-time high, which serves to confirm conclusively what I have suspected for years - the Christmas
card companies and the computer companies are in cahoots to see to it that there is plenty of that colorful, electrically
conductive material spread around to guarantee it will get sucked into computers with forced-air cooling to land
on and short out circuits! That's right, it simply cannot be a coincidence that the sales of notebook and desktop
computers rises markedly each year between Thanksgiving and Christmas.
the traditionalist kind of guy that I am, Melanie and I still mail actual Christmas cards every year - and even
put hand-written messages in each one - so this time when I marveled over the massive quantity of glitter that covered
the dining room table after a writing session, the little light bulb (an incandescent one,
not a CFL) went on in my cranium. In a near panic I quickly grabbed a damp rag to collect all the evil little
short-circuit-looking-for-a-place-to-happen metal squares before any one of them could work its diabolical deed
on my nearby notebook computer.
trusty digital caliper measured the smallest chuck of glitter at about 0.22 mm (8.7 mils), and the largest
as huge as 0.8 mm. Considering that lead spacing on fine pitch surface mount components like the thin quad
flat pack (TQFP)
is around 0.4 to 0.8 mm, a single piece of glitter, which might have a non-conductive color layer on its top
and bottom surfaces but exposed, conductive edges, could easily bridge the leads and/or unprotected PCB solder pads.
You might think I've gone off my rocker, but each day as we open reciprocated Christmas cards, I have been witnessing
levels of glitter everywhere that I had never noticed in previous years. A quick check of the country of origin
shows that nearly all were made in China (what isn't these days?). However, given the latest international incident
with North Korea and its cyber attack on
Sony Pictures, I'm calling for a Congressional investigation into whether a wave of
gray market Christmas cards
has flooded the market this year.
Sorry to seem like the Grinch, but I feel it's my duty to alert you to potential acts of technological sabotage.
Posted December 23, 2014