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 Computer Engineering Thread, # 67 members already :D #

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ikanayam
post Nov 11 2005, 11:27 AM

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np, i can even give you schematic diagrams etc if you need, i have to document all this some time anyway. I even have layout diagrams if you want, but you probably just need gate sizing figures.
Mr_47
post Nov 11 2005, 11:32 AM

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any satelite eng.. here???
TScharge-n-go
post Nov 11 2005, 12:14 PM

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QUOTE(ikanayam @ Nov 11 2005, 11:27 AM)
np, i can even give you schematic diagrams etc if you need, i have to document all this some time anyway. I even have layout diagrams if you want, but you probably just need gate sizing figures.
*
wow, tat's a lot of work. It's ok if u r busy.

Well, later might need yr full name to be in my project report tongue.gif
Hope my lecturer accept my proposal, will inform u a.s.a.p. notworthy.gif

btw, do u know any books have this kind of figures? Maybe i can js get from there and save your hassles.
SUSDavid83
post Nov 11 2005, 04:12 PM

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During my training, I came across several soldering techniques like wave soldering, manual soldering and etc. These terms appear in the datasheets.

Any sites to go to have a brief idea on what are them?

Stitchy® w/o stitches
ikanayam
post Nov 11 2005, 04:37 PM

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QUOTE(charge-n-go @ Nov 10 2005, 11:14 PM)
wow, tat's a lot of work. It's ok if u r busy.

Well, later might need yr full name to be in my project report tongue.gif
Hope my lecturer accept my proposal, will inform u a.s.a.p. notworthy.gif

btw, do u know any books have this kind of figures? Maybe i can js get from there and save your hassles.
*
My figures are not from books, they are from my own custom made gates tongue.gif

And don't worry about it, because i have to make presentations on my project etc so i need to document all this anyway.
ikanayam
post Nov 11 2005, 06:14 PM

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My conventional full CMOS 1 bit full adder/subtractor/AND layout, i'm proud of how compact it is since i slaved over it for many many hours tongue.gif

32 transistors total.
3 metal layers.
blue is metal1, pink is metal2, dashes of bright green is metal3

all crammed in about 10*10 microns. Using TSMC 0.18 micron design rules.

user posted image

Those people who think computer engineering is all science don't know shit. This is art in its truest form laugh.gif
TScharge-n-go
post Nov 11 2005, 08:41 PM

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David83, got try google-ing? I always find plenty of info there.

ikanayam, that's the 1st time i see this diagram,hahaha.
Well, engineering is the combination of science and art. Without creative mind we can't even come out a simple design. K7 and K8 architecture is an art man, we are going to see another masterpiece - Conroe next year biggrin.gif
Mavik
post Nov 15 2005, 01:21 PM

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QUOTE(David83 @ Nov 11 2005, 05:12 PM)
During my training, I came across several soldering techniques like wave soldering, manual soldering and etc. These terms appear in the datasheets.

Any sites to go to have a brief idea on what are them?

Stitchy® w/o stitches
*
Yes do a google search and you can find all of the information you need. Manual soldering is just soldering done manually either you are using a soldering iron, double soldering irons or even a blower.

Wave soldering,
http://www.tkb-4u.com/articles/soldering/p...m/procparam.php

Soldering is basically attempting to connect parts to boards or other parts. Each technique differs to the process. So it is not always the name of the soldering or the method but more of the process it is supposed to go through such as when soldering components through SMT machines or down back to the manual soldering.

Also different techniques are done for different components such as discrete, chip, ICs, components that come in different packages (tape, tray, etc..).
Mavik
post Nov 15 2005, 01:23 PM

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ikanayam, haha that is art? LOL. If only they hung pictures like that in the Lourve, then I could have related better rather than the new abstract and modern art pictures.

I've seen the drawings done by my PWB specialist in my company and when the final 6 layer board is completed, now that is true art tongue.gif Its so complicated that it blows me away haha smile.gif
Mavik
post Nov 15 2005, 01:25 PM

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As some people like to see the architecture as an art, to me personally I think the IC itself and the fabrication techniques are a work of art. Since coming from a solid state major in uni, I think the whole atomic physics of ICs are itself brilliant and mind boggling!
ikanayam
post Nov 16 2005, 04:44 AM

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Have to build a 20k transistor chip next semester for my class, have any ideas about what it shoud do? There's still plenty of time but i like to plan in advance so i can think about it over the winter. What custom functionality would be marketable today?

This post has been edited by ikanayam: Nov 16 2005, 04:45 AM
TScharge-n-go
post Nov 16 2005, 09:13 AM

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haha, what about doing the whole CPU? tongue.gif
ikanayam
post Nov 16 2005, 09:19 AM

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QUOTE(charge-n-go @ Nov 15 2005, 08:13 PM)
haha, what about doing the whole CPU? tongue.gif
*
it will be a rather limited CPU with only 20k transistors to work with. I'm thinking more of a custom application thing. Something new, or improving on something that's really lacking.
TScharge-n-go
post Nov 16 2005, 09:26 AM

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how about 16-bit Array multiplier? hahaha.
ikanayam
post Nov 16 2005, 10:26 AM

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QUOTE(charge-n-go @ Nov 15 2005, 08:26 PM)
how about 16-bit Array multiplier? hahaha.
*
Nah, not original enough tongue.gif
And besides, that wouldn't be much of a challenge. It will be crap easy to layout since it's just the same thing over and over. I don't think we'll even be allowed to make something that basic tongue.gif

The guys who won last year made the digital portion of an RFID tag with some fancy 128bit encryption and all that.

This post has been edited by ikanayam: Nov 16 2005, 10:26 AM
X10A Freedom
post Nov 16 2005, 06:02 PM

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Viterbi Decoder
Turbo Decoder
Booth Multiplier
Carry Enhanced Multiplier(don't think u can google it)
DRAM(i think this is pretty easy, just the controller part might be otherwise)

This post has been edited by X10A Freedom: Nov 16 2005, 06:06 PM
martianunlimited
post Nov 16 2005, 06:32 PM

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By what will you be judged by?

A RF chip will be a good challenge, it's not going to be easy to design a on chip antenna, your layout must be extremely good to reduce cross coupling, images, and still have a working antenna; (more so if you want a nice layout without leaving a huge blank space for the antenna)

Plus since the last winner was somebody who did the digital portion, why don't you do the analog portion... no chance of using synthesis tools here.... and i am sure that your lecturers will put their hats off to you if you manage to pull this off

(this is going to do wonders if you plan to apply into a semicon company in the future)

This post has been edited by martianunlimited: Nov 16 2005, 06:33 PM
ikanayam
post Nov 16 2005, 06:34 PM

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Nah, i'm a digital guy, i'm not into analog stuff. And we are not allowed to use synthesis tools anyway, it's all full custom layout. Well i still have 2 months more to think about what i want to do, and i want to win, so i'll really have to think it through.
empire23
post Nov 16 2005, 07:12 PM

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QUOTE(ikanayam @ Nov 16 2005, 09:19 AM)
it will be a rather limited CPU with only 20k transistors to work with. I'm thinking more of a custom application thing. Something new, or improving on something that's really lacking.
*
a unilock with encryption for guns? Firecontrol for disposable infrantry weapons?
X10A Freedom
post Nov 16 2005, 08:23 PM

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QUOTE(ikanayam @ Nov 16 2005, 06:34 PM)
Nah, i'm a digital guy, i'm not into analog stuff. And we are not allowed to use synthesis tools anyway, it's all full custom layout. Well i still have 2 months more to think about what i want to do, and i want to win, so i'll really have to think it through.
*
in this competition, you'll be judge based on wat? how useful your IC is? or how innovative it is? or other requirement?

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