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Glossary

3,533 technical terms and definitions

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Dual-Beam Fib-SEM

metrology

Dual-beam FIB-SEM is a combined instrument integrating a Focused Ion Beam and Scanning Electron Microscope in a single chamber — enabling simultaneous ion beam milling…

Dual Damascene Process

copper dual damascene, copper interconnect integration, beol metallization, via trench single fill, low-k interconnect fabrication, damascene cmp flow

Copper dual damascene interconnect architectures, electrochemical superfilling, and barrier-seed metallization constitute the back-end-of-line (BEOL) wiring systems that route…

Dual In-Line Package

dip, packaging

Dual in-line package is the through-hole package with two parallel rows of straight leads designed for socketing or PCB insertion - it remains important in legacy, prototyping…

Dual Stress Liner Dsl

tensile stress liner nmos, compressive stress liner pmos, stress liner deposition, cesl nitride film

Channel strain engineering, embedded silicon-germanium (eSiGe) source/drain stressors, and dual contact etch stop liners (DSL / CESL) constitute the primary material-enhancement…

Dummy Wafer

production

Dummy wafer: a non-product wafer that does a real process job. A dummy wafer is used to establish a qualified load, condition equipment or support a tool operation without…

DUV (deep Ultraviolet)

duv, deep ultraviolet, lithography

DUV (Deep Ultraviolet) lithography uses short-wavelength ultraviolet light — primarily 193nm (ArF) and 248nm (KrF) — to pattern semiconductor wafers, and has been the workhorse…

Dynamic Range

metrology

Dynamic Range is the ratio between the largest and smallest measurable values — spanning from the detection limit (or quantification limit) at the low end to the saturation…

Dynamic SIMS

metrology

Dynamic SIMS is the high-flux primary ion beam mode of Secondary Ion Mass Spectrometry used for depth profiling, where a continuous, high-current primary ion beam (O2^+ or Cs^+)…

Dynamic Voltage and Frequency Scaling Dvfs

low power chip design, dvfs controller, power management ic, pmic frequency scaling

Dynamic Voltage and Frequency Scaling (DVFS) is the critical active power management technique in modern SoCs and microprocessors that dynamically adjusts the operating voltage…

E-Beam Evaporation

electron beam evaporation, ebeam evaporation, electron beam gun, water-cooled hearth, crucible skull, beam sweep, spitting defect, oxide dissociation, evaporation radiation damage, reactive evaporation, ion assisted deposition, pvd

Electron-beam evaporation is best understood not as a hotter heater but as a solution to the containment problem: it lets the material hold itself. A resistively heated source has…

E-Beam Inspection

metrology

E-beam inspection uses a focused electron beam to scan the wafer surface, achieving higher resolution defect detection than optical methods and enabling voltage contrast imaging.…

E-Beam Lithography

lithography

E-Beam Lithography (EBL) is a maskless direct-write patterning technique that uses a precisely focused electron beam to expose electron-sensitive resist with sub-10nm resolution…

E-Beam Lithography Field Stitching Error Prediction with Machine Learning

e beam lithography field stitching error prediction with machine learning, e beam lithography field stitching error prediction machine learning, e beam

E-Beam Lithography Field Stitching Error Prediction with Machine Learning Introduction & Motivation E-Beam Lithography Field Stitching Error Prediction with Machine Learning…

E-Beam Mask Writer

lithography, VSB, variable shaped beam, electrostatic correction, laser interferometry, per-shot dose modulation, NuFlare, JEOL, serial write time

An e-beam mask writer patterns a mask blank using a focused electron beam shaped into variable-sized rectangles, exposing one shot at a time with sub-nanometer placement accuracy…

Ebook

ebooks, semiconductor ebooks

Semiconductor Engineering & Capital Allocation eBook Series The ChipFoundryServices Technical Series is a four-volume engineering canon that maps the physical constraints…

Ebooks

ebook, semiconductor ebooks, books, technical books, ebook series, chip book, foundry book, lithography book, etch book

Semiconductor Engineering & Capital Allocation eBook Series The ChipFoundryServices Technical Series is a four-volume engineering canon that maps the physical constraints…

Eco Engineering Change Order

eco metal fix, chip eco, gate level eco, spare cell eco

Engineering Change Orders (ECOs) are the late-stage design modifications made to a chip after the main design flow is complete, typically to fix functional bugs, implement…

EDA Machine Learning

ai in chip design, machine learning physical design, reinforcement learning routing, ml timing prediction

Machine Learning in Electronic Design Automation (EDA) is the transformative integration of deep learning, reinforcement learning, and advanced pattern recognition into…

EDA Tools

electronic design automation, chip design tools, eda software

EDA tools are electronic design automation software: the compilers, analyzers, editors, solvers, and verification systems that turn a chip idea into manufacturable geometry.…

Eddy Current

metrology

Eddy current measurement is a non-contact electromagnetic technique for measuring conductive film thickness and sheet resistance on semiconductor wafers. Principle: AC magnetic…

Edge Bead Removal Control

ebr process, photoresist edge bead, coating uniformity edge, lithography edge exclusion

Edge Bead Removal Control Edge bead removal (EBR) is the controlled application of a compatible solvent near the wafer perimeter during or immediately after spin coating. Its job…

Edge Exclusion

wafer edge analysis, metrology

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

Edge-Model-Caching-Strategy Machine Learning

edge model caching and prefetching strategy, edge model caching, model caching prefetching, caching prefetching strategy, edge model, model caching, caching prefetching

Edge Model Caching and Prefetching Strategy Introduction & Motivation Edge Model Caching and Prefetching Strategy addresses a central problem in edge-computing process control…

Edge Rounding

wafer bevel, edge polish

Edge Rounding is a wafer finishing process that smooths sharp corners at the wafer edge to reduce chipping, particle generation, and film stress during processing. What Is Edge…

Edge Trim

wafer edge, edge bead removal

Edge Trim is a wafer process step that removes material from the wafer edge to eliminate particles, films, or defects that could cause contamination or handling issues. What Is…

Efem Load Port Wafer Mapping Fault Prediction Machine Learning

efem load port wafer mapping fault prediction, efem load port, load port wafer, port wafer mapping, wafer mapping fault, mapping fault prediction, efem load, load port

EFEM Load Port Wafer Mapping Fault Prediction with Machine Learning Introduction & Motivation EFEM Load Port Wafer Mapping Fault Prediction with Machine Learning addresses…

Elastic Recoil Detection (Erd)

elastic recoil detection, erd, metrology

Elastic Recoil Detection (ERD) is an ion beam analysis technique that measures the composition and depth distribution of light elements in thin films by directing a heavy ion beam…

Electrical Test Methods

parametric test wafer, functional test die, probe testing, wafer acceptance test

Electrical Test Methods are the comprehensive suite of measurements that verify electrical functionality and performance of semiconductor devices — ranging from simple continuity…

Electrical Test Structures

metrology

Electrical test structures are on-wafer structures for measuring electrical parameters — specialized patterns that enable precise measurement of resistance, capacitance…

Electrical Wafer Sort (Ews)

electrical wafer sort, ews, testing

Electrical wafer sort (EWS) is the first electrical test step in semiconductor manufacturing, where each die on a wafer is probed before packaging. The purpose is simple: identify…

Electroluminescence

el, electroluminescence imaging, electroluminescence spectroscopy, led electroluminescence, pv electroluminescence, electroluminescence metrology

A solar-cell crack, an LED contact defect, and a locally hot junction can all produce dark or bright electroluminescence contrast, but through different electrical and optical…

Electromagnetic Compatibility Emc Chip

emi radiated emission, chip package emc, emc pre compliance testing, spread spectrum clocking emc

Electromagnetic Compatibility (EMC) in Chip Design is a systems-level discipline ensuring integrated circuits operate reliably in electromagnetically noisy environments while…

Electromagnetism

electromagnetism mathematics, maxwell equations, drift diffusion, semiconductor electromagnetism, poisson equation, boltzmann transport, negf, quantum transport, optoelectronics

Electromagnetism Mathematics Modeling A comprehensive guide to the mathematical frameworks used in semiconductor device simulation, covering electromagnetic theory, carrier…

Electron Backscatter Diffraction

ebsd, ebsd mapping, kikuchi pattern orientation mapping, high resolution ebsd, hr-ebsd, semiconductor ebsd

A polished semiconductor wafer, metal interconnect cross-section, ceramic substrate, or solder joint can contain thousands of grains whose orientations govern slip, diffusion…

Electron Beam Induced Current (Ebic)

electron beam induced current, ebic semiconductor, ebic microscopy, ebic junction mapping, ebic defect analysis

A focused SEM beam does more than form a secondary-electron image of a semiconductor. Each energetic primary electron loses energy inside the solid and creates many electron–hole…

Electron Beam Lithography

ebeam lithography, ebl, direct write lithography, ebeam patterning

Electron Beam Lithography (EBL) is the maskless patterning technique that uses a focused beam of electrons to directly write nanoscale features into resist — achieving sub-10nm…

Electron Energy Loss Spectroscopy (Eels)

electron energy loss spectroscopy, eels spectroscopy, stem eels, eels elemental mapping, eels semiconductor

An electron crossing an electron-transparent semiconductor lamella can emerge unchanged, or it can surrender a precisely measurable portion of its energy to the specimen. Those…

Electron Microscopy

metrology

Electron microscopy is a family of high-resolution imaging and analysis techniques that use focused electron beams instead of light to achieve nanometer to atomic resolution…

Electron Ptychography

metrology

Electron Ptychography is the application of ptychographic reconstruction to STEM data — using 4D-STEM datasets (a convergent beam electron diffraction pattern at each scan…

Electroplating

electrochemical deposition, copper damascene plating, copper superfilling, ECD copper

Copper dual damascene interconnect architectures, electrochemical superfilling, and barrier-seed metallization constitute the back-end-of-line (BEOL) wiring systems that route…

Electroplating Layer Uniformity Drift Machine Learning

deposition predicting electroplating uniformity drift with time and bath chemistry, deposition predicting electroplating, predicting electroplating uniformity, uniformity drift time

Deposition: Predicting electroplating uniformity drift with time and bath chemistry Introduction & Motivation Deposition: Predicting electroplating uniformity drift with time…

Electroplating Solder

packaging

Electroplating solder is the wafer-level bumping method that deposits solder alloy onto pad sites through patterned resist using electrochemical plating - it provides tight…

Electrostatic Chuck Manufacturing

esc chuck, electrostatic wafer chuck

Electrostatic chuck manufacturing creates a ceramic or dielectric wafer-support assembly that must clamp uniformly, transfer heat predictably, survive plasma and thermal cycling…

Electrostatic Chuck

esc, esc semiconductor, wafer chuck esc, coulomb esc, johnsen-rahbek esc, esc clamping force, esc dechucking, bipolar esc, esc wafer temperature, esc dielectric

An electrostatic chuck (ESC) clamps a silicon wafer to a process pedestal using electrostatic attraction rather than mechanical pins or vacuum, achieving intimate thermal contact…

Esc

electrostatic chuck esc, esc clamping, esc dechucking, bipolar esc, coulomb esc, johnsen-rahbek esc, esc semiconductor, esc wafer temperature

An electrostatic chuck (ESC) clamps a silicon wafer to a process pedestal using electrostatic attraction rather than mechanical pins or vacuum, achieving intimate thermal contact…

Electrostatic Discharge Control

esd control, esd prevention, semiconductor esd control, electrostatic discharge prevention

Electrostatic discharge control is the documented system of grounding, equipotential bonding, charge generation reduction, ionization, shielding, packaging, training…

Electrostatic Discharge Protection

esd clamp design, hbm cdm esd model, io pad esd, whole chip esd network

Electrostatic Discharge (ESD) protection constitutes the dedicated on-chip network of high-current shunting devices engineered to safeguard sensitive gate dielectrics, thin tunnel…

Electrostatic Force Microscopy (Efm)

electrostatic force microscopy, efm, metrology

Electrostatic Force Microscopy (EFM) is a two-pass scanning probe technique that maps electrostatic force gradients across a surface by detecting the interaction between a biased…

Embedded Die Substrate

sequential die embedding, cavity placement die, CTE mismatch stress, thermal cycling reliability, defective die scrap economics, substrate warpage yield, high density multi chip module

Embedded die substrate technology places semiconductor dies directly inside the substrate material itself, rather than mounting them on top of it, creating integrated multi-chip…

Embedded Multi-Die Interconnect Bridge

emib, advanced packaging, silicon bridge, cowos-l, 2.5d

Interposers are the substrates that carry 2.5D integration: a die-to-die wiring layer dense enough to route thousands of connections between chiplets that sit side by side.…