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U
uranium
UART
universal asynchronous receiver/transmitter
UBM
under-bump metallurgy
UCB
unit code browser
UCL
upper confidence limit; upper control limit
Ueff
effective mobility
UEL
upper explosive limit
UF
ultra-filtration
UFC
unsaturated fluorocarbon; Uniform Fire Code
UFL
upper flammable limit
UHF
ultra-high frequency
UHP
ultra-high purity
UHV
ultra-high vacuum
UI
user interface
UID
user identification
ULA
uncommitted logic array
ULK
ultra low-k
ULPA
ultra-low particulate air
ULSI
ultra large-scale integration
UPA
ultraperforming algorithm
UPH
units per hour
UPS
uninterrupted power supply; ultraviolet photoemission spectroscopy
UPW
ultrapure water
URD
user requirement document
URL
uniform resource locator
U/S
ultrasonic
USART
universal synchronous/asynchronous receiver/transmitter
USOP
ultra small outline package
USRD
user system requirement document
Utt
unattenuated
UTV
unmanned transport vehicle
UUT
unit under test
UV
ultraviolet
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V
vanadium; volt
VA
volume absorber
VAC
volts alternating current
VAE
variable aperture electrode
VAR
value added reseller; volt-ampere reactive
VASE
variable angle spectroscopic ellipsometry
VAT
visible alpha tool
Vbd
voltage breakdown
VBM
valence band maximum
VBO
valence band offset
VDC
volts direct-current
Vdd
source-to-drain voltage; power supply voltage
Vdg
drain-to-gate voltage
VDP
Van der Pauw
VDS
vapor distribution system; vacuum diagnostics system
VDSM
very deep sub-micron
Vfb
flatband voltage
VFD
variable frequency drive
VFDD
via-first dual damascene
VFEI
virtual factory equipment interface
VFTL
via first trench last
Vg
gate voltage
VHF
very high frequency
VHN
Vickers hardness number
VHP
very high productivity; very high performance
VHORG
vertically and horizontally organized grid
VHS
variable hard sphere
VHSIC
very high-speed integrated circuit
V-I
vacancy-interstitial
VLA
very large array
VLE
vapor levitation epitaxy
VLF
vertical laminar flow
VLL
video lead locator
VLS
variable line spacing
VLSI
very large-scale integration
VM
virtual machine
VME
versa micromodule extension; virtual manufacturing enterprise
V-MOS
v-groove metal-oxide semiconductor
VMW
vertically modulated well
VNL
Virtual National Laboratory (LLNL, LBNL, SNL)
VOC
volatile organic compound
VODM
vapor on demand
VPD
vapor phase desorption; vapor phase decomposition
VPD-ICPMS
vapor phase decomposition-inductively-coupled plasma mass
spectrometry
VPP
peak-to-peak voltage
VPSEM
variable pressure scanning electron microscope
Vsilc
voltage stress-induced leakage current
VSP
variable soft sphere
VSS
variable soft sphere
Vt or Vth
threshold voltage
VTP
vertical thermal processor
VTVM
vacuum tube voltmeter
VUV
vacuum ultraviolet
VWF
vacuum workfunction |
