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Glossary

3,813 technical terms and definitions

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wide i/o

advanced packaging

Wide I/O is an early 3D-stacked DRAM standard designed for mobile applications that placed memory directly on top of the logic processor — using a 512-bit wide interface with TSV…

william shockley

shockley, shockley semiconductor laboratory, traitorous eight, junction transistor theory, mountain view, shockley eugenics

William Shockley (1910-1989) was an American physicist who shared the 1956 Nobel Prize in Physics for the transistor, wrote the theory of the junction transistor, and founded…

wire

bond, packaging, bondwire, interconnect, ultrasonic, thermocompression, pull, strength

Advanced packaging is the set of technologies that connect, protect and cool silicon after it leaves the fab. It has moved from a cost-driven back-end afterthought to a primary…

wire bonding

advanced packaging

Advanced packaging is the set of technologies that connect, protect and cool silicon after it leaves the fab. It has moved from a cost-driven back-end afterthought to a primary…

wire bonding

wire bond, ball bonding, wedge bonding, semiconductor packaging

Wire bonding is a semiconductor-packaging process that connects pads on a die to leads or substrate traces with fine metal wires. A capillary or wedge tool presses the wire…

wire bonding

die attach, semiconductor packaging assembly, gold wire bond, wedge bonding

Wire Bonding and Die Attach are the fundamental semiconductor packaging assembly processes that mount the die onto a substrate and create electrical connections between die pads…

wire bonding

wire bond, ball bonding, wedge bonding, semiconductor packaging

Wire bonding is a semiconductor-packaging process that connects pads on a die to leads or substrate traces with fine metal wires. A capillary or wedge tool presses the wire…

wire sweep

packaging

Wire sweep is the deformation or displacement of bonded wires caused by mold-flow forces during encapsulation - excessive sweep can create shorts and reliability failures. What Is…

wire sweep during molding

packaging

Wire sweep during molding is the displacement of bonded wires caused by molding-compound flow forces during encapsulation - it is a major reliability risk in wire-bond packages…

wirebond failure

ball lift, heel crack, wire sweep, bond reliability, failure analysis, packaging, wire bond

Wire bond failure modes are the mechanisms by which wire interconnections in IC packages degrade and fail — including ball lift, heel crack, wire sweep, and corrosion, each…

wireless chip

wifi chip, wi-fi chip, bluetooth chip, ble chip, wifi 7, wireless combo ic, radio baseband mac

Wireless chip integrates radio transceivers, data converters, baseband DSP, protocol MAC and host interfaces for standards such as Wi-Fi, Bluetooth/BLE and sometimes Zigbee…

within wafer nonuniformity signature prediction machine learning

within-wafer nonuniformity signature prediction, within-wafer nonuniformity signature, nonuniformity signature prediction, within-wafer nonuniformity, nonuniformity signature

Within-Wafer Nonuniformity Signature Prediction with Machine Learning Introduction & Motivation Within-Wafer Nonuniformity Signature Prediction with Machine Learning addresses…

within-wafer uniformity (wiwnu)

within-wafer uniformity, wiwnu, cmp

Within-wafer non-uniformity (WIWNU) describes how much a measured property varies across one wafer. In CMP, that property might be remaining film thickness, removed thickness…

wiw (within-wafer variation)

wiw, within-wafer variation, manufacturing

WIW (Within-Wafer Variation) Overview Within-wafer variation describes parameter differences between dies at different positions across a single wafer, primarily caused by radial…

workforce scheduling and operator staffing optimization for wafer fabs

workforce scheduling operator staffing optimization wafer fabs, workforce scheduling, operator staffing optimization, ot, workforce scheduling operator, wafer fabs

Workforce Scheduling and Operator Staffing Optimization for Wafer Fabs Introduction & Motivation Workforce Scheduling and Operator Staffing Optimization for Wafer Fabs addresses…

working standard

metrology

Working standard is a measurement reference used in daily calibration and verification of production instruments — the hands-on standard that technicians regularly use to check…

X

ray, metrology, XRD, SAXS, semiconductor, analysis

Spectroscopic ellipsometry and inline optical wafer metrology constitute the non-destructive physical measurement and defect detection disciplines that govern yield control across…

x-ray absorption spectroscopy

xas, x-ray absorption fine structure, xafs, xas semiconductor, x-ray absorption metrology

X-ray absorption spectroscopy follows one selected element as incident X-ray energy is swept through a core-electron binding energy. The abrupt absorption edge and fine structure…

x-ray fluorescence mapping

XRF mapping, micro-XRF mapping, x-ray fluorescence imaging, elemental mapping XRF, wafer XRF mapping, quantitative XRF microscopy

X-ray fluorescence mapping builds a spatially resolved elemental picture by rastering a focused or collimated excitation beam across a specimen and recording an energy spectrum…

x-ray photoemission electron microscopy

xpeem, photoemission electron microscopy, x-ray peem, xpeem semiconductor, chemical imaging peem, magnetic domain xpeem

X-ray photoemission electron microscopy turns a surface-sensitive electron-yield measurement into a full-field image. Tunable X-rays illuminate a field of view, a cathode lens…

x ray scatterometry

CDSAXS, XRR reflectometry, GISAXS grazing incidence, synchrotron lab source, buried structure measurement, sub nanometer sensitivity, model robust metrology

X-ray scatterometry uses X-ray diffraction and scattering, rather than visible or near-visible light, to measure nanoscale semiconductor structure dimensions — and the entire…