IC manufacturers with a name starting with 'U'

IC manufacturer by first letter of name:
0..9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Notes:

UMC
United Microelectronics Corp.
No 3, Industrial east third road science based industrial park
Hsinchu City, Taiwan, Republic of China
Sales Office:
9 th Floor, no 201-26, Tunhua north road
Taipei, Taiwan, Republic of China
tel: +886-2-7152455
fax: +886-2-7166291
http://www.umc.com.tw/
Unicorn
UNIchip
UNIchip
Chip set?
United Technologies
See Aeroflex UTMC.
Unitrode
(Related to Micro Networks? Merged with Benchmarq on 19980803)
Unitrode UK Limited
6 Cresswell Park
GB Bleackheath London SE3 9RD
tel: +44-1-318-1431
fax: +44-1-318-2549
http://www.unitrode.com/
Chip codes start with UC
University of Twente
University of Twente
P.O.Box 217
7500 AE Enschede
Netherlands
tel: +31-53-4892675
fax: +31-53-4891090
http://www.el.utwente.nl/mesa/ Micro Electronics, Materials- and Molecular Engineering, and Sensors and Actuators
They also seem to make chips
USA Integration
USA Integration
Chip set?
USAR
(1987)
USAR Systems Inc.
568 Broadway, Suite 405
New York, NY 10012
USA
tel: +1-212.226.2042
fax: +1-212.226.3215
info@usar.com
http://www.usar.com/ General
http://www.usar.com/prodnser/products.htm Data sheets
http://www.usar.com/aboutu/aboutus.htm About
http://www.usar.com/whatsn/whatsnews.htm News
http://www.usar.com/search/Default.htm Search
http://www.usar.com/contact/contact.htm Contact
Designs and produces Human Input Device (HID) electronics and System Management products. HID products include pre-programmed IC's for keyboards, mice, touch screens, etc., as well as complete embedded mouse modules for OEM integration. System management products include ACPI-compliant embedded controllers with integrated keyboard and other HID functionality, including USARs ACPITrollerTM series. Geared chiefly to the portable and hand-held markets, USAR holds patents on several low-power implementation methods, providing ICs with the lowest power consumption available.
U.S. Digital
US Digital Corporation
11100 NE 34th Circle
Vancouver, WA, 98682-8714
USA
tel: +1-360-696-2468
tel: +1-800-736-0194 - Sales
fax: +1-360-696-2469
support@usdigital.com
sales@usdigital.com
webmaster@usdigital.com
http://www.usdigital.com/ General
http://www.usdigital.com/products/ Data sheets
HEDS-9x00-x00 Optical incremental encoder module
LS7166 Quadrature encoder to microprocessor interface chip
LS7266R1 Dual quadrature encoder with index to microprocessor interface chip
LS7083 Quadrature encoder to counter interface chip
LS7084 Quadrature encoder to counter interface chip
UT
Ultra Technology
2512 10th Street
Berkeley, CA 94710
tel: +1-510-848-2149
webmail@ultratechnology.com

http://www.dnai.com/~jfox/
They also have a mailing list.

Maker of the soon to be 500 Mips (?) F21 Forth processor.
UTC
See Aeroflex UTMC.
UTMC
See Aeroflex UTMC.
Note:
The +1-800 toll free numbers can only be reached from within the USA (and some also from Canada).
If you haven't found it here try:
http://www.asic-success.com/chips_frame.html Gray's IC manufacturers
http://www.crhc.uiuc.edu/~dburke/databookshelf.html Burke's links to IC manuf's data sheets
http://www.boin-gmbh.com/linkpage/indicm.htm BOIN's Semiconductor Linkpage
http://www.datasheetlocator.com/ Datasheet Locator by NetComponents
http://www.bgs.nu/sdw/root.html Semiconductor datasheets on the Web
http://www.edtmag.com/ Electronic Distribution Today
http://www.eenet.com/semi/man.htm EENet Semiconductor Manuf's WWW sites
http://www.gallery.uunet.be/rlogghe/semicond.htm Semiconductor manufacturers
http://www.semiresources.com List of many semi mfrs' home pages
http://www.stengel.net/ic.htm Another list (from 1998)
http://www.geocities.com/SiliconValley/Sector/6375/Fabricantes1.html And another
http://www.semiref.com/siteE/fab1E.htm And yet another (French/English site)
http://pw1.netcom.com/~dwsmith/list_numbers.html Dana's index