CMOS Test.

Shog9 0

*clap* *clap* *clap* *clap* :)

Shog9 --

Maybe Java is kind of like God, it "works in mysterious ways". It seems like your apps are running slowly, because in the backgroud Java is solving world hunger, or finding the cure to cancer. - Ryan Johnston, Don't die java!

Roger Wright

To clarify a bit, having read the rest of the responses now, the Complimentary part comes from mixing both P- and N- channel structures on a single die - something that had never been tried before. The output stage of a CMOS device consists of a totem-pole configuration of PMOS and NMOS transistors, stacked and biased to maintain a zero voltage at the output when idle. A friend of mine in college worked for a company that beta tested the devices for RCA. They designed an RF board that was supposed to sleep until a sufficiently strong radio signal was intercepted. The boards worked great, but upon further study they discovered that the boards had been built without any power traces. All CMOS devices then were built with protection diodes on the inputs to protect against static discharges. As it turned out, the RF signals were being rectified and were providing enough power to turn on the devices without any DC power supply! Serendipity Lives! I'm a Frisbeeterian. We believe that when you die your soul is thrown up on the roof, and you can't get it down.

Shog9 0

Fascinating! You should teach history :)

Shog9 --

Maybe Java is kind of like God, it "works in mysterious ways". It seems like your apps are running slowly, because in the backgroud Java is solving world hunger, or finding the cure to cancer. - Ryan Johnston, Don't die java!

ColinDavies

SO CMOS has a no power state ? Like a zero power state ? Regardz Colin J Davies

Sonork ID 100.9197:Colin

I am sick of fighting with Martin, I think I will ignore his posts from here on in, and spend the time working on articles instead. Christian Graus

Roger Wright

Shog9 wrote: You should teach history At my age, it's hard enough to remember it! I'm a Frisbeeterian. We believe that when you die your soul is thrown up on the roof, and you can't get it down.

ColinDavies

I agree totally. Regardz Colin J Davies

Sonork ID 100.9197:Colin

I am sick of fighting with Martin, I think I will ignore his posts from here on in, and spend the time working on articles instead. Christian Graus

Michael Dunn

(not having read the responses yet) something Metal Oxide Semicondctor Can't remember what the C stands for. I'll probably feel dumb after catching up on the thread ;) --Mike-- Just released - RightClick-Encrypt v1.3 - Adds fast & easy file encryption to Explorer My really out-of-date homepage Sonork-100.19012 Acid_Helm

Roger Wright

Used properly, it can. Another friend in college wanted to photograph bees in flight. He used a CMOS front end without properly terminating the ground leads, to trigger the camera. The static electricity generated by the bees' wings flapping was enough to power up the device enough to force a trigger to snap the shutter. I won't even go into another guy's idea for a Senior Project, dubbed the "Peter Meter" and utilizing a circular strain gauge and a CMOS analog front end... I'm a Frisbeeterian. We believe that when you die your soul is thrown up on the roof, and you can't get it down.

Roger Wright

Nah.. Just very young... I'm a Frisbeeterian. We believe that when you die your soul is thrown up on the roof, and you can't get it down.

Vimal Earnest

Hmm.. Cesium Metal Oxide SemiConductor ~ Vimal

Lost User

Complimentary Metal Oxide Semiconductor Easy ;P Even BB (my bear knew that one) :-D Elaine :rose: Would you like to meet my teddy bear ?

alex barylski

Shog9 wrote: history Savage buddy...that sounded insulting... :) "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

alex barylski

Not even... ;P I knew what CMOS stood for...but I thought it was a joke...how many programmers are hardware retarded i thought to myself...? Cheers! "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

ColinDavies

I know what CMOS is, but I can never remember what the letters actually stand for. Saying that, I have never had a reason to use any BIOS level flashing stuff, and wouldn't know where to begin. Regardz Colin J Davies

Sonork ID 100.9197:Colin

I am sick of fighting with Martin, I think I will ignore his posts from here on in, and spend the time working on articles instead. Christian Graus

alex barylski

Colin Davies wrote: I know what CMOS is, but I can never remember what the letters actually stand for. I guess it isn't actually that important...except when u get questions like this one...then it's a little bit of bragging(spelling) rights I suppose... "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Roger Wright

That's a very smart bear you have there, Elaine!:-D I'm a Frisbeeterian. We believe that when you die your soul is thrown up on the roof, and you can't get it down.

Rick York

That's an intersting point about the static protection. Some of the early 4000 series CMOS logic gate chips did not have static protection. I remember a friend in high school rubbing his fingers across the pins of a logic chip and a hole was blown in the top of the chip. This was obviously one of the very first series of the chips. (-edit- corrected spelling) The Ten Commandments For C Programmers

Roger Wright

The chips I was mentioning were those 4000-series from RCA. Resdel Engineering was a beta tester for the new technology, and one of my friends worked there part time while going to school. It wasn't a bad deal - they got all their parts for free, in exchange for the failure analyses and application notes they wrote for the new parts. Prior to CMOS, we were used to handling TTL, which was virtually indestructible. It was hard to get technicians used to the idea that they could destroy the chip merely by touching it. TTL had input impedances on the order of 10K, while CMOS raised the bar to the Mohm range - a huge difference in the magnitude of voltages that a few stray charges could develop! These days I doubt there's much of a problem with that. The packaging density is so high that it can only be handled by machines. I know of few techs that would attempt to hand assemble a card built on .2 mm lead spacing. I was pretty handy with a soldering iron in my day, but I wouldn't try it! I'm a Frisbeeterian. We believe that when you die your soul is thrown up on the roof, and you can't get it down.

Rick York

Those sure were the old days weren't they ? :) I agree with you. Today there are very few low-count logic gates like those produced. When such things are required people usually use a PLD or go the ASIC approach. In other words, much higher density than four gates in a DIP chip. The Ten Commandments For C Programmers

Roger Wright

I wish we could have used PLD/ASIC devices. I attended the Grand Opening party for LSI Logic (one of the pioneers in the field), and even a simple one would have cost me $100,000 for the first prototype! I could buy a lot of circuit board space and DIPs for that price... Now you can buy an array and burn it yourself for a couple of bucks!:omg: I'm a Frisbeeterian. We believe that when you die your soul is thrown up on the roof, and you can't get it down.