197 technical terms and definitions
mesa etching, diffused silicon mesa, Fairchild 2N696, Fairchild 2N697, Jean Hoerni exposed junction, mesa structure, 1958 silicon mesa transistor
A mesa transistor is a diffused-junction transistor in which the individual device is isolated by etching away the surrounding semiconductor, leaving a raised, flat-topped plateau…
lithography
Metal Cut is a complementary lithographic process in FinFET and gate-all-around transistor back-end metallization that uses a dedicated mask to selectively remove sections…
CVD, PVD, ALD, sputtering, electroplating, copper
Mathematical Modeling of Metal Deposition in Semiconductor Manufacturing 1. Overview: Metal Deposition Processes Metal deposition is a critical step in semiconductor fabrication…
pvd, cvd, ald, sputtering, electroplating, film growth, copper plating, butler-volmer, nernst-planck, monte carlo, deposition modeling
Metal Deposition is semiconductor manufacturing method for forming controlled metal films through PVD, CVD, ALD, and electrochemical processes - It is a core method in modern…
dummy metal fill, density rules, metal density rule, fill insertion
Metal Fill (Dummy Fill) is the insertion of non-functional metal shapes into sparse areas of a layout — ensuring the metal layer density stays within foundry-specified limits that…
high k metal gate hkmg, work function metal deposition, metal gate replacement process, ald tin tan gate, hkmg
High-k metal gate (HKMG) integration, replacement metal gate (RMG / gate-last) processing, and dual work function metal (WFM) engineering constitute the foundational materials…
process variation predicting critical dimension (cd) variation in metal lines across the wafer, process variation predicting, variation predicting critical, predicting critical dimension
Process Variation: Predicting critical dimension (CD) variation in metal lines across the wafer Introduction & Motivation Process Variation: Predicting critical dimension (CD)…
predicting critical dimension (cd) variation in metal lines across the wafer, predicting critical dimension, critical dimension (cd), dimension (cd) variation, (cd) variation metal
Predicting critical dimension (CD) variation in metal lines across the wafer Introduction & Motivation Predicting critical dimension (CD) variation in metal lines across the wafer…
lithography
Metal-oxide resists are an emerging class of EUV photoresists based on inorganic metal-oxide compounds (such as tin-oxide, hafnium-oxide, or zirconium-oxide clusters) rather than…
metal-oxide-semiconductor interface quality prediction, metal-oxide-semiconductor interface quality, interface quality prediction, metal-oxide-semiconductor interface
Metal-Oxide-Semiconductor Interface Quality Prediction with Machine Learning Introduction & Motivation Metal-Oxide-Semiconductor Interface Quality Prediction with Machine Learning…
scatterometry, ellipsometry, x-ray reflectometry, inverse problems, optimization, statistical inference, mathematical modeling
Metrology and inspection are the two measurement disciplines that keep a semiconductor fab in control — they are how a foundry knows, wafer by wafer, whether hundreds of process…
inspection, optical inspection, e-beam, aoi, process control, semiconductor metrology, kla, defect detection
Metrology & Inspection: Seeing the Unseen — Nanoscale Defect Physics, Machine Vision & Yield Economics In semiconductor manufacturing, you cannot improve what you cannot measure.…
optical critical dimension ocd, scatterometry measurement, x-ray metrology xrf, ellipsometry film thickness
Metrology Equipment is the precision measurement instrumentation that characterizes critical dimensions, film thicknesses, overlay alignment, and material properties…
calibration lab
Read the metrology lab through a traceability-to-standard lens rather than an instrument-collection lens. A room of expensive tools—a four-point probe, an ellipsometer, a Keysight…
metrology physics, ellipsometry, scatterometry, OCD metrology, CD-SEM, thin film measurement, overlay, spectroscopic ellipsometry, critical dimension, semiconductor metrology
Semiconductor metrology is the discipline that transforms fabrication from an act of faith into a science of evidence. At every node from the 90 nm era through today's sub-2 nm…
metrology tool gauge r&r drift prediction, metrology tool gauge, tool gauge r&r, gauge r&r drift, r&r drift prediction, metrology tool, tool gauge, gauge r&r, r&r drift
Metrology Tool Gauge R&R Drift Prediction with Machine Learning Introduction & Motivation Metrology Tool Gauge R&R Drift Prediction with Machine Learning addresses a central…
metrology tool matching offset prediction machine learning, metrology tool, matching offset prediction, metrology tool matching offset prediction, metrology tool matching
Metrology Tool Matching Offset Prediction with Machine Learning Introduction & Motivation Metrology Tool Matching Offset Prediction with Machine Learning addresses a central…
metrology tool repeatability accuracy prediction, metrology tool repeatability, tool repeatability accuracy, repeatability accuracy prediction, metrology tool
Metrology Tool Repeatability Accuracy Prediction with Machine Learning Introduction & Motivation Metrology Tool Repeatability Accuracy Prediction with Machine Learning addresses…
packaging, peripheral bga, low-profile package, mobile packaging, package warpage, escape routing, depopulated array, size-constrained package, placement precision
Micro BGA and peripheral BGA are two variants of the standard ball grid array that each sacrifice something from a full, densely-populated array in exchange for a specific…
lithography
A micro-break (also called a line break or line collapse) is a stochastic patterning defect where a continuous line feature develops a random gap or break, creating an electrical…
lithography
Micro-bridging is a type of stochastic patterning defect where unwanted thin connections of residual resist form between two adjacent features that should be separate. These…
advanced packaging prediction of micro-connector contact yield from design parameters and manufacturing conditions, advanced packaging prediction, packaging prediction micro-connector
Advanced Packaging: Prediction of micro-connector contact yield from design parameters and manufacturing conditions Introduction & Motivation Advanced Packaging: Prediction…
mini led backlight, micro led transfer, led on silicon backplane, micro led efficiency droop
Micro-LED Display Semiconductors are miniaturized InGaP/GaN LEDs (1-100 µm pixel size) integrated with active-matrix CMOS backplanes, requiring mass-transfer technology…
mini led micro led, led epitaxy gaas substrate, mass transfer micro led, led pixel pitch scaling
Micro-LED fabrication grows red, green, and blue emitters as compound-semiconductor epitaxial stacks, etches each emitter down to an isolated mesa only a few micrometers across…
coffin manson microbump, distance to neutral point packaging
Microbump thermal cycling fatigue is the slow mechanical failure of the thousands-to-millions of solder microbumps joining a GPU die to its interposer or substrate, driven not…
MCU, embedded processor, on-chip memory and IO, 8051, embedded systems, single-chip computer
A microcontroller is an integrated circuit that combines a processor core with program memory, data memory, and input/output peripherals on a single chip, so that it can operate…
fairchild 1960 exhaustive test vectors stuck at fault coverage, micrologic transistor 1960 logic gate probe not parameter test, integrated circuit 1960 functional test versus parametric test
Verify Circuit Function on the Wafer, Not Just One Transistor's Parameters: Testing a Truth Table, Not a Number 1. Why Passing Every Parameter Test Still Does Not Mean the Gate…
fairchild 1960 poisson yield circuit area sum components, micrologic transistor 1960 one bad component fails circuit, integrated circuit 1960 correlated failure yield penalty
Confront a New Yield Problem: One Bad Transistor Now Fails the Entire Chip 1. Why the Poisson Yield Model Now Has to Count a Whole Circuit's Area, Not One Die's This step forces…
integrated circuit die cost versus transistor count curve, exponential yield penalty applied to chip pricing
Price a Chip by Its Transistor Count, Not Its Function: The Cost Per Good Die Curve This Product Forced 1. Why Adding One More Transistor Costs More Than Adding One More…
metrology
Micrometer is a precision mechanical measuring instrument that uses a calibrated screw mechanism to measure dimensions with 1-10 micrometer resolution — one of the most…
micrometer features, feature-size scaling, process generation, micron-scale chips, scaling phases
The micron era refers to the period in chip manufacturing when the smallest features on integrated circuits were measured in whole micrometers, roughly spanning the time before…
CPU on a chip, single-chip processor, Intel 4004, fetch-decode-execute, microcontroller vs microprocessor, x86, Federico Faggin
A microprocessor is a complete central processing unit fabricated on a single integrated circuit, pulling the arithmetic, control, and register logic that earlier computers spread…
intel 1971 hoff faggin mazor shima busicom mcs4, 4004 1971 silicon function fixed versus behavior from program, microprocessor 1971 extends persistence into stored instructions
Why a Calculator Chip Project Became a General-Purpose Processor: The First Series Whose Silicon Does Not Fix What the Chip Does 1. Why Every Earlier Series Encoded Its Function…
intel 4001 256 by 8 mask programmed rom instruction storage, 4004 1971 external program rom fetch opr opa, microprocessor 1971 stable rom program differs from refreshing dram
Store the Program in a Separate Read-Only Memory Chip: Keep Instructions Stable Outside the Processor 1. Let the 4004 Select Instructions From a 4001 Program ROM The Intel 4004…
intel mcs 4 4004 4001 4002 4003 chip set, 4004 fetch decode execute stored program architecture, microprocessor 1971 stored instructions select reusable hardware behavior
Classify and Release: The Architecture Every Later Chip Will Assume 1. Classify the 4004 as a CPU, Not as the Entire Computer The Intel 4004 integrates the central processing…
texas instruments tms 1000 single chip computer comparison, design priority versus shipping priority definitional dispute
Survey the Competing Priority Claim: Texas Instruments' TMS 1000 and What "First" Actually Means 1. A Second Chip, Designed Earlier, Shipped Later Texas Instruments began…
second sourcing intel 8080 lineage multiple manufacturers, architecture portable across fabrication lines not one company
License the Design Itself: Second-Sourcing as a Business Practice This Series Has Not Yet Named 1. A Different Kind of Reuse Than Step 16's Cost Model Describes Step 16 of this…
metrology
Microroughness is the surface height variation at spatial wavelengths below ~1 µm (typically 0.01-10 µm) — characterizing the atomic-scale and near-atomic-scale surface texture…
metrology
Spectroscopic ellipsometry and inline optical wafer metrology constitute the non-destructive physical measurement and defect detection disciplines that govern yield control across…
local interconnect semiconductor, contact over active gate, middle of line metallization, mol contacts
Self-aligned silicides and nanoscale contact metallization architectures represent the material and thermodynamic interfaces engineered to establish low-resistance ohmic…
moq, minimum order quantity, minimum quantity, how many wafers, smallest order
Minimum order quantities vary by service type, with flexible options from 5 wafers for prototyping to 25 wafers for production — including Multi-Project Wafer (MPW) programs that…
multi-die package, chiplet heterogeneous integration
Modern system-on-chip roadmaps increasingly abandon single monolithic silicon in favor of a mix and match chiplet strategy, where logic, memory, analog, and input/output functions…
mmwave packaging dielectric loss tangent variation prediction, mmwave packaging dielectric, packaging dielectric loss, dielectric loss tangent
mmWave Packaging Dielectric Loss Tangent Variation Prediction with Machine Learning Introduction & Motivation mmWave Packaging Dielectric Loss Tangent Variation Prediction…
mobile-phone chips, what is mobile-phone chips
A mobile phone depends on several semiconductor functions rather than one universal phone chip. In the 1990s context, those functions include baseband processing, radio-frequency…
mocvd compound semiconductor composition uniformity prediction, mocvd compound semiconductor, compound semiconductor composition, semiconductor composition uniformity
MOCVD Compound Semiconductor Composition Uniformity Prediction with Machine Learning Introduction & Motivation MOCVD Compound Semiconductor Composition Uniformity Prediction…
mocvd reactor wafer carrier wobble prediction machine learning, mocvd reactor, wafer carrier wobble, cvd mocvd, mocvd reactor wafer carrier wobble prediction
MOCVD Reactor Wafer Carrier Wobble Prediction with Machine Learning Introduction & Motivation MOCVD Reactor Wafer Carrier Wobble Prediction with Machine Learning addresses…
metrology
Model-Based OCD is the computational engine behind optical scatterometry — using electromagnetic simulation (RCWA, FEM, or FDTD) to compute the expected optical response for…
process control
MPC (Model Predictive Control) in semiconductor manufacturing is a multi-variable control strategy that uses a process model to predict future outputs and optimize control actions…
emc, mold compound, popcorn, msl, moisture sensitivity, packaging, reliability
Moisture absorption is the uptake of ambient moisture by molding compounds and package materials during storage and handling - it directly impacts moisture sensitivity level…
packaging
Moisture barrier packaging is the packaging system designed to limit moisture ingress into moisture-sensitive semiconductor components during storage and transit - it is…