Acronyms and Abbreviations

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W

 

X, Y, Z

W
tungsten

WAN
wide area network

W-bit
wait-bit

W/B
wire bonding

WB
weak base

WBSEM
Wire Bonder Specific Equipment Model

WBS
work breakdown structure

WC
wedding cake

WCN
tungsten-carbon-nitride

WD
working distance

WDM
wavelength division multiplex

WDS
wavelength-dispersive spectrometry

WDX
wavelength dispersive X-ray

WDXA
wavelength-dispersive X-ray analysis

WEC
wafer environment control

WFT
wafer fabrication template

WIB
within-batch

WIP
work in process; work in progress

WIS
wafer-induced shift

WIW
within-wafer

WIWNU
within-wafer nonuniformity

WLBI
wafer-level burn-in

WLP
wafer-level package

WLS
weighted least squares

WLT
wafer-level test

WN
tungsten nitride

WNP
waste neutralization plant

WORM
write once read many

WPC
wafer process chamber

WPH
wafers per hour

WSC
World Semiconductor Council

WSI
wafer-scale integration

WSPW
wafer starts per week

WTC
wafer transfer chamber

WTW
wafer-to-wafer

WTWNU
wafer-to-wafer nonuniformity

WVDS
water vapor delivery system

WVR
water vapor regained

 

X
inductive reactance

XANES
X-ray adsorption near edge structure spectroscopy

XAS
X-ray absorption spctrosopcy

Xe
xenon

XLL
exit loadlock

XLS
excimer laser system; extended light scatterer

XPS
X-ray photoelectron spectroscopy

XRD
X-ray diffraction

XRF
X-ray fluorescence spectrometry

XRR
X-ray reflectometry

XSEM
cross-sectional scanning electron microscopy

Y
yttrium

YAG
yttrium aluminum garnet

Yb
ytterbium

YIG
yield impact graph

YMT
yield management tools

Z
zinc

ZCC
zone control conveyor

Zn
zinc

Zr
zirconium



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