backtop


Print E-mail del.icio.us 33 comment(s) - last by mindless1.. on Apr 1 at 2:26 PM


An example of a polymer with a relatively fixed ladder-like structure.
New plastics that serve as better semiconductors could lead to portable electronics that can truly bounce back

"Dropped calls" have a very different meaning to Dutch researcher Paulette Prins. The Foundation for Fundamental Research on Matter (FOM) doctoral candidate has proposed a way to make mobile phones and other personal electronics more resilient, and much less likely to break when dropped.

In her research paper, recently published in the journal Physical Review Letters, Prins states that portable electronics are prone to malfunctioning because of the nature of the materials used in their microchips. The key to improving mobile devices ability to survive a fall, according to Prins, is to manufacture semiconductors made from plastic rather than silicon.

The problem is that today's plastics aren't good conductors of electricity. In fact, as a conductor, plastic is about a thousand times worse than the existing semiconductors, Prins says. Her solution was to utilize a plastic developed by German engineers which exhibits a remarkably different structure than most polymers. Polymers are made up of molecular "chains," and most polymers have chains that are fractured and asymmetrical. However, the new polymers have chains that exhibit a fixed, "ladder-like" structure which is more akin to conventional semiconductor materials.

Prins proved her point by bombarding the new polymers with electrons from a particle accelerator, recording the material's reaction times with accuracy to 100 microseconds. Then she determined the conductivity of the polymers by measuring their microwave absorption rates. Prins' findings suggest that plastic chips are entirely feasible, paving the way for personal electronics that are significantly more shock-proof.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

Excellent ideas
By cheetah2k on 3/30/2007 1:17:18 AM , Rating: 2
Using plastics for CMOS tech is not new, however the idea of using them in phones is an excellent one. I have dropped so many phones in my life time, and this could set the trend for future devices.

However, i still dont think a plastic chip phone would survive an washing machine accident....




RE: Excellent ideas
By fk49 on 3/30/07, Rating: 0
RE: Excellent ideas
By Mudvillager on 3/30/2007 6:04:04 AM , Rating: 2
Makes me wonder about performance though...


RE: Excellent ideas
By Belard on 3/30/2007 6:36:46 AM , Rating: 2
Ah... About 2 years ago - I took 3 steps out the door from the Celluar store from a new phone upgrade when it slipped out of my hand and onto my foot and skidded another 5 feet.

I said many ugly things for 5 minutes. ;(

Worked fine for a year thou.


RE: Excellent ideas
By kevin87435 on 3/30/2007 6:55:11 AM , Rating: 2
Heh, somehow I've got a Samsung cell phone that survived a washing machine and multiple droppings on the sidewalk... I guess I'm just lucky it ran out of battery before making it to the washing machine, I let it dry for a day, turned it on, and it's still going strong several months later


RE: Excellent ideas
By brandonmichael on 3/30/2007 1:25:44 PM , Rating: 2
I've got this ugly "blue brick" Nokia phone that went through the wash cycle, dried out and that very night was left in a car for 5 hours while it was -30... I got it inside and it was frozen right through. I thought it was history for sure, but although it stopped being able to ring and had sound distortion problems, I still use the phone to this day...


RE: Excellent ideas
By Dactyl on 3/30/2007 1:55:22 PM , Rating: 2
My Samsung clamshell survived a trip through a washing machine and dryer. The only damage was a minor splotch on the LCD, which disappeared after a few weeks. It was a high-efficiency, low-water washing machine--those may be easier to survive.


RE: Excellent ideas
By darkpaw on 3/30/2007 5:24:47 PM , Rating: 2
My wife has washed her Samsung phone at least three times and I can't believe it still works fine.

My Ngage has been dropped on concrete so many times the outside is totally shot and it likes to randomly shut itself off, but generally still works. Its time to replace it though and I'm kinda worried that a smart phone just won't hold up to the abuse I dish out on my cell phones.


RE: Excellent ideas
By bubbacub616 on 3/31/2007 5:56:32 PM , Rating: 2
omg you own an N gage!


RE: Excellent ideas
By smaddox on 3/30/2007 11:59:48 AM , Rating: 5
I'd like to see evidence that the silicon chip is the part malfunctioning after a drop. I would be very surprised if it was.


RE: Excellent ideas
By bram on 3/30/2007 3:01:12 PM , Rating: 2
My exact same thought. Printed circuit boards and IC components usually aren't particularly fragile to the impact caused by free fall of 1-2 meters.

Phones that breaks from a drop probably suffers from a fragile plastic casing rather than a fragile PCB.


RE: Excellent ideas
By smaddox on 3/30/2007 5:25:31 PM , Rating: 2
Even more likely is the LCD breaking. I know at least 2 people using phones with broken LCDs. One of them is only partially broken, and can still see some of the display. The other is completely broken, and can only use his phone for answering calls.

Also, I have experienced similar issues with digital cameras. When they do break, it is either the lens, or the LCD.

CMOS on Plastic is interesting, but much more for embedded devices, than for general processing. I can see them being embedded into shoes, etc. more than anything that is already electronic.


RE: Excellent ideas
By Omega215D on 3/30/2007 6:27:45 PM , Rating: 2
Then you haven't met the phone from Verizon, the G'zOne Type-V. Built to light military specs.


But what about glass displays?
By 9nails on 3/30/2007 6:36:25 AM , Rating: 3
I've dropped phones before. So far I have a 100% success rate of the phones surviving the fall. But what I've seen from friends is the display sometimes cracks upon impact. If you dropped your phone at a hight where the chips crack, I hope you have a parachute. Perhaps there is some parallel universe which allows the display to survive and the chips crack, but I haven't seen it yet.




RE: But what about glass displays?
By desdemonia on 3/30/2007 7:24:43 AM , Rating: 6
I work in a failure analysis dept of a cell phone manufacturer. Typically the problem isnt with the chips themselves cracking, but rather their lack of flex. When the phone is dropped it flexes and put stress on all the internal components. The solder joints that hold chips onto the pcb break because the pcb flexes with the drop of the cell phone but the chip dosnt, so the joints break, hence the phone not working. I presume a chip made with plastic would flex with the pcb when its dropped and thus the joints wont break.


By mindless1 on 4/1/2007 2:26:45 PM , Rating: 2
That is unlikely, preservation of internal structures is likely to require orders of magnitude less flexure of the chip than the circuit board could survive.

The problem is instead, one of not designing to survive impact. Surface mount parts aren't all multipin silicon as it is, a complete solution would require either circuit board made stiffer, or all surface mount parts on flexible leads, not the components themselves flexing.

The other alternative is an epoxy-like filling to make the entire subassembly inflexible or at least greatly resistant to it, if not shock absorbing as well.

Most of these things take up extra space or increase cost though, which goes against typical consumer demand for low-cost, disposible consumer electronics. Even rightly so on a cell phone that may be obsolete years before it wore out if it wasn't dropped (barring a more overt design flaw).


RE: But what about glass displays?
By dice1111 on 3/30/2007 9:24:31 AM , Rating: 2
Maybe ask the crew from Slider's next time they pop in.
http://www.imdb.com/title/tt0112167/ (imdb.com)


The real question
By Googer on 3/30/2007 1:11:00 AM , Rating: 5
The real question is if it will break or not but "Will it Blend?" Don't breath this....

http://www.willitblend.com/videos.aspx?type=unsafe...




RE: The real question
By dice1111 on 3/30/2007 9:32:29 AM , Rating: 2
hahaha, sweet. You just filled my boring day at work with something to do in the lunch room. My boss is NOT going to be happy. Thank god he's such a sport.


Next big thing in cell phones
By Jellodyne on 3/30/2007 11:22:44 AM , Rating: 3
We've had the camera phone, the mp3 phone and the video player phone, but the next big thing to incorporate into the cell phone is the hair comb -- only we didn't have the unbrakable plastic technology to do it... UNTIL NOW!




RE: Next big thing in cell phones
By nekobawt on 3/30/2007 11:44:58 AM , Rating: 2
Ooh, or how about cellphone hockey?


wrong journal
By thereaderrabbit on 3/30/2007 1:33:15 PM , Rating: 2
The journal is Physical Review Letters. There is no such journal as the one you listed.




RE: wrong journal
By thereaderrabbit on 3/30/2007 1:36:52 PM , Rating: 2
One more thing... while plastics are great, they do not lend themselves to the photo lithography processes that can be used with silicon. So while these new polymers may prove interesting, they are not about to replace silicon chips.


Its all good and well but...
By JimFear on 3/30/2007 8:28:28 AM , Rating: 3
I'd rather see plastics that are easily recyclable, sure you can make chips out of plastics but the screens can still break, also they'll be harder to deal with when they ARE end of life I imagine, seeing as we've suddenly gone environment crazy it would be better to develop plastics that are easily disposable.




PLEASE ADD REMOTE CONTROLS!!!
By Mitch101 on 3/30/2007 10:01:22 AM , Rating: 2
Remote controls need this technology much more, they are contantly dropped, thrown and stepped on.

I have at least 3 remotes with little plastic scraps in them that are barely holding together because someone always says you take the remote and throws it and misses.

For some reason the light source of the TV fades out when the throw occurs and you cant see the remote in the air and bam. Catches are not always light handed either.

Cell phones are important too but you done say hey its for you and throw your cell phone. House phones yes I do thrown them.




Dont think its related...
By TimberJon on 3/30/2007 2:55:41 PM , Rating: 2
My Kingston U3 2GB flash drive took a beating in an industrial washer, and TWO full cycles in the industrial dryer. on perm press. Was taking my laundry out and noticed something sliding around. Wow to my surprise, damn thing still works..




By DragonMaster0 on 3/30/2007 11:43:20 PM , Rating: 2
Will companies really start to sell stuff that lasts?




Simply...
By wingless on 3/31/2007 10:58:55 PM , Rating: 2
A crutch for the clumsy..




Yay Larger landfils
By TheDrD on 3/30/07, Rating: -1
RE: Yay Larger landfils
By slash196 on 3/30/2007 2:59:12 AM , Rating: 4
Yeah, because current phones magically repurpose themselves into candy after your contract expires!


RE: Yay Larger landfils
By Scabies on 3/30/2007 9:24:18 AM , Rating: 4
like LG's Chocolate. mmm.


RE: Yay Larger landfils
By Shining Arcanine on 3/30/2007 1:32:07 PM , Rating: 2
In Europe they do. From what I understand, cell phones are fashion accessories over there, such that having one for a year is rare.


RE: Yay Larger landfils
By graynote on 3/30/2007 7:12:39 PM , Rating: 2
Yay! DT says I may possibly be a robot! Please let it be true!

Anyway..

Yes, cell phones most certainly are accessories in Europe - in Denmark at least. In a not so distant past having a cell phone was enough of a status symbol in itself, but since everyone - including 10 year old kids and even younger - has got one now, the coolness factor relies solely on brand and model.

Off course having a trendy cell phone isn't worth much if noone sees it, so the ever trendy people flash them (No, the phones!) at every chance the get. And SURELY you can't flash a 1 year old phone in public. Enter the age of the accessoriesed cell phone ..

The fact that telcoms pays 3/4+ of the retail price if you sign up for six months (or have been a loyal custumor for six months) helps encouraging people to "upgrade" too.

btw, pardon my poor grammer/spelling - but feel free to correct any errors.

Cheers
graynote


"The Space Elevator will be built about 50 years after everyone stops laughing" -- Sir Arthur C. Clarke











botimage
Copyright 2009 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki