U.S. Sensor
U.S.SENSOR
UBEC
UBIQ
U-BLOX
UDE(涌德电子)
UDF(优迪半导体)
UDOO
UG(悠景)
UIY(优译)
UJU(宇宙电子)
ULEADTEK(勇领)
ULIS
ULNION
UMaxconn(友贸)
UMW(友台半导体)
Uniband Electronic Corp(UBEC)
UNIC MEMORY
Unichip
UNICMICRO
Unicom Global
Unicon
Unicorecomm(和芯星通)
Unigen
U-NIKC(旭康微)
Unilc(紫光国芯)
UniOhm
Union
UNI-SEMI(宇力半导体)
Unisoc(紫光展锐)
Unisonic Technologies Co Ltd(UTC)
United Chemi-Con(UCC)
UNITEDSIC
Universal Electronics Inc. (UEI)
UPI
UPUN(友邦)
US Digital
US-Laser
USR(有人物联网)