Taiwan Semiconductor
http://www.ts.com.tw
rectifiers

TDK Semiconductor
http://www.tsc.tdk.com
MODEM chips, networking chips, microcontrollers, transceivers, DTMF chips

TEC
http://www.tec1.com
battery chip, digital screwdriver chip, hearing aid chips

Teccor Electronics
http://www.teccor.com
TRIACs, SCRs, rectifiers

Tektronix
see Maxim

TelCom Semiconductor
http://www.telcom-semi.com
power managment chips, data converters, voltage references

TeleCruz
http://www.telecruz.com
interactive television chips

Teledyne Components
see TelCom Semiconductor

Telefunken Semiconductors
see Vishay Telefunken

Teltone
http://www.teltone.com
telecom chips (DTMF)

TeraGen
http://www.tera-gen.com
configurable microcontrollers

TeraLogic
http://www.teralogic-inc.com
video processor chips (DVD)

Texas Instruments
http://www.ti.com
microprocessors, DSP processors, mixed signal chips, analog/linear chips, standard logic, memory chips, storage controller chips (HD,CD-ROM), etc... (TI makes pretty much everything!)

Texas Memory Systems
http://www.texmemsys.com
DSP chips

Thaler
http://www.thaler.com
data converters, voltage references

THAT
http://www.thatcorp.com
amplifiers, analog processors, transistor array chips, delay line chips

Thesys
http://www.thesys.de
radio chips, video chips, universal serial bus chips

Thomson-CSF Semiconductors
http://www.tcs.thomson-csf.com/Us
CCD image sensors, microprocessors, EPROM, Flash, data converters, fingerprint recognition chips

TigerJet Network
http://www.tjnet.com
PC system chips, networking chips (ISDN controller)

TLSI
http://www.tlsi-ic.com
(no product info)

Toko America
http://www.tokoam.com
SAW filter chips, regulators, transistors

Torex Semiconducor
http://www.torex.co.jp
voltage regulators, DC/DC converters, power transistors (FET), battery chips

Toshiba
http://www.toshiba.com
http://doc.semicon.toshiba.co.jp/indexus.htm
discretes, standard logic, DRAM, SRAM, telecom chips, microcontrollers, networking chips, optoelectronics, RISC Microprocessors

TOYOCOM
http://www.toyocom.co.jp
crystal oscillators, SAW filters

TransSwitch
http://www.transwitch.com
networking chips (ATM,SONET)

Tri-Vision
http://www.tri-vision.ca
TV security chips (V-chip)

Trident Microsystems
http://www.trid.com
video processing chips

Tripath Technology
http://www.tripath.com
audio amplifiers

Triquint Semiconductor
http://www.triquint.com
networking chips, clock chips

Triscend
http://www.triscend.com
configurable microprocessors

TriTech Microelectronics
http://www.tritechmicro.com
CODECs, speech chips

TRW
http://www.trw.com/mmic
GaAs microwave amplifiers

TSC America
http://www.tscus.com
rectifiers

Tseng Labs
http://www.tseng.com
video processing chips

T.sqware
http://www.tsqware.com
networking chips

Tundra Semiconductor
http://www.tundra.com
PC system chips, data controller chips, encryption chips

Turbo IC
http://www.turbo-ic.com
EEPROM