FrostyTech.com Heatsink Reviews and Analysis
> GO < Search
TOP 5 BEST Heat Sinks     SEARCH     News     Reviews    
Follow Frostytech on FacebookFrostytech News RSS FeedFollow frostytech on Twitter
° Reviews and Articles
° Breaking News
° Mfg's Index
° Top 5 Heatsinks
° Top 5 Liquid Cooling
° Top 5 Low Profile   Heatsinks

Top 5 Heatsink Charts


NoFan Computer
What's New in Heatsinks?
°  Coolermaster Nepton 140XL & 280L All-In-One CPU Water Cooler Review

°  Enermax ETS-N30 Budget CPU Air Cooler Review

°  Noctua NH-U12S @ LanOC Reviews

°  Noctua NH-D15 Review

°  Corsair Hydro H75 & H105 Coolers

°  Colder Products Company LQ6 Liquid Cooling Connectors


   - or - Best 5 Heatsinks?
Oki Showcase Water-cooled Printed Circuit Board - FrostyTech.com Oki Showcase Water-cooled Printed Circuit Board
Sun Sep 16, 2007 | 10:48P| PermaLink

Oki Printed Circuits Co., Ltd. has showcased a new type of watercooled printed circuit board (PCB) to Nikkei Business, which it calls the "Conduit-incorporated Printed Board." In conventional watercooling systems, just the upper surface of an integrated circuit, chip or processor is cooled by a metal block that has space inside for water to continuously pass through. These types of heatsinks are generally know as "waterblocks" or "watercooling jackets". Since the heat produced by a microchip soldered to a PCB is conducted out the top, and through the solder balls which hold it onto the PCB through the bottom, this form of cooling is not entirely efficient. Oki's new conduit incorporated PCB is an alternative to these water-cooling jackets because it contains a coolant flow channel to cool board mounted electronic devices from above, and below.

According to the company, "the conduit-incorporated printed boards will be located on the upper and lower surfaces of the exothermic component. All of the parts required for cooling, such as a radiator for heat dissipation, a pump and a reservoir for coolant are imbedded on the Conduit-incorporated printed board."

"As a result, the conduit-incorporated printed board has the following characteristics: (1) cooling systems can be miniaturized as all of the required parts for a cooling system can be imbedded on the printed board; (2) the cooling capacity is high as the exothermic component is cooled from both surfaces, and (3) multiple exothermic components on a printed board can be cooled, the company explained."

Frostytech.com
(Image credit: Nikkei Business Publications)

In the protoype configuration shown above, a synthetic heater is sandwiched between two conduit-incorporated printed boards from the upper and lower surfaces of the heater. "The heat conductive pads, which have a coefficient of thermal conductivity of 5 W/m·K, are sandwiched between the heater and the conduit-incorporated printed board on both heater surfaces. The initial temperature of the coolant is 24° C; the room temperature is 19° C; and the electric consumption of the heater is 14 W. The result shows that this system can achieve roughly a 32% reduction in temperature rise in comparison with a system to water-cool the exothermic component from one surface."

Frostytech.com
(Image credit: Nikkei Business Publications)

For circuit boards with electronic packages of different height, the difference is accomodated by heat conductive pads.

FULL STORY @ NIKKEIBP
(http://techon.nikkeibp.co.jp/english/NEWS_EN/20070604/133603/)


News Archives by Category
» Audio / Sound » Beginners Guides » Benchmarks
» Biometrics » BIOS » Business / Industry
» Cases » Chipset » Computer / SFF PCs
» Cooling / Heatsinks » CPU / Processors » Digital Cameras
» Drivers » Editorial » Games
» Gossip » Hard Drives » Hardware
» Home Theatre » Imaging » Memory
» Mobile Devices » Monitors » Motherboards
» Mouse Pads » MP3 Players » Networking
» Notebooks » Operating System » Optical Drives
» Overclocking » Peripherals » Power Supply
» Press Release » Printers » Servers
» Site News » Software » Tips
» Tradeshows / Events » Video Cards » Web News
Resources
° Got Feedback?
° Mk.II Test Platform
° Where To Buy?
° Manufacturer Index
° Industry Dir.
° Cooling Projects

nPowerTek NPH-1366-140HC Heatsink Review

Dynatron G666 2U Xeon Server Heatsink Review

Dynatron G556 2U Xeon Server Heatsink Review

Dynatron G555 2U Xeon Server Heatsink Review

Dynatron G199 1U Xeon Server Heatsink Review

Cooler Master Nepton 280L Liquid Cooling System Review
...More Articles >>

 

Websites you may also like:
PCSTATS

Google Search Frostytech

Time stamped: 4:28AM, 04.18.2014



FrostyTech.com
Since June 1999

Find a Heatsink / RSS Feeds
Latest Heatsink Reviews
Top 5 Heatsinks Tested
News RSS Feed
Reviews RSS Feed


Social Media
Facebook Fan Page
Twitter
Pinterest


FrostyTech.com Info
Feedback
Contact Us / Heatsink Submissions
Submit News
Legal

Contact the Suite 66 Advertising Agency
© Copyright 1999-2014 www.frostytech.com. All Rights Reserved. Privacy policy and Terms of Use
Images © FrostyTech.com and may not be reproduced without express written permission.