3,538 technical terms and definitions
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…
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…
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…
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…
msl, packaging
Moisture sensitivity level is the classification that defines how long a package can be exposed to ambient conditions before reflow without moisture damage - it is a fundamental…
packaging
Mold cavity is the shaped chamber in molding tooling where compound forms around the package structure during encapsulation - its geometry and surface condition strongly influence…
packaging
Mold chase is the upper and lower mold tooling assembly that houses cavities, runners, and gates in transfer or compression molding - it provides structural accuracy and thermal…
packaging
Mold close time is the time interval required for mold halves to close, align, and reach clamped readiness before transfer - it influences cycle efficiency and flash control…
packaging
Mold design is the engineering of tooling geometry and flow paths used to encapsulate semiconductor packages during molding - it determines fill behavior, defect rates…
packaging
Mold flash is the unwanted thin excess molding compound that escapes at mold parting lines or gaps during encapsulation - it is a common defect linked to tooling condition…
packaging
Mold temperature is the controlled tooling temperature that sets compound viscosity, flow behavior, and cure kinetics during encapsulation - it is one of the highest-impact…
packaging
Molded underfill is the packaging process where molding compound is engineered to simultaneously encapsulate the package and fill under-die interconnect gaps - it consolidates…
packaging
Molding compound is the engineered encapsulation material used to protect semiconductor packages from mechanical and environmental stress - its composition strongly influences…
packaging, units per hour, UPH, cure time quality floor, mold open time, non-value-added delay, cycle time decomposition, yield guardrails, throughput optimization
Molding cycle time is the total elapsed time for one complete molding operation — mold close, transfer and cure, mold open, part unload, and reload — and it's the single metric…
packaging
Molding process parameters is the set of controllable conditions such as temperature, pressure, timing, and transfer profile that govern encapsulation quality - they define…
production
A monitor wafer is a dedicated wafer processed through specific tools to check equipment performance, cleanliness, particle levels, and process quality. Purpose: Verify that…
particle monitor, film monitor, electrical monitor, SPC chart feed, tool health tracking, short loop test structure, monitor to product correlation, process drift detection, non product wafer
Monitor wafers are non-product wafers deliberately run alongside actual production wafers specifically to track ongoing tool and process health — dedicated to measurements like…
monolithic 3d transistor stack, vertical cmos integration, inter tier via process, 3d logic fabrication
Monolithic 3D Integration Process is the transistor stacking methodology that fabricates multiple active device tiers on one wafer with dense vertical connections. What It Covers…
mc simulation, statistical simulation, variance reduction, importance sampling, semiconductor monte carlo
Monte Carlo simulation is the computational method that uses random sampling to solve deterministic and stochastic problems — generating thousands or millions of random trials…
production, random sampling, virtual wafer, defect placement simulation, process parameter variation, yield distribution, tail risk, design process interaction, stochastic yield model
Monte Carlo simulation for yield uses repeated random sampling to model the full statistical distribution of semiconductor yield, simulating thousands of virtual wafers each…
mosfet scaling 1970s step 19 push toward one micron node metrology, push toward one micron node metrology
MOSFET Scaling (1970s): Step 19 — Pushing Toward the 1-Micron Node, Metrology Limits Measurement control becomes as hard a problem as process control. As the integrated flow…
magnetic tunnel junction, mtj, stt mram, sot mram, embedded mram
Emerging memory is the umbrella term for a class of non-volatile memories — chiefly MRAM, ReRAM, and PCM — that store a bit not as trapped electric charge, the way DRAM and NAND…
mueller matrix spectroscopic ellipsometry, mueller ellipsometry, full mueller matrix polarimetry, depolarization ellipsometry, mueller matrix optical metrology, mueller matrix ellipsometer
Mueller matrix ellipsometry measures how a sample transforms a set of incident polarization states into output Stokes vectors over wavelength, angle, azimuth, or position. Its 4×4…
4x4 polarization matrix, diattenuation retardance depolarization, off diagonal asymmetry detection, cross polarized elements, advanced overlay metrology, structural asymmetry detection
Mueller matrix scatterometry is an advanced form of optical scatterometry that measures a sample's complete four-by-four Mueller matrix — all sixteen elements capturing…
lithography
Multi-beam e-beam lithography uses multiple parallel electron beams writing simultaneously to overcome the fundamental throughput limitation of conventional single-beam…
lithography, beamlet array, independent blanking, raster scan writing, IMS Nanofabrication, curvilinear mask, inverse lithography, EUV mask write time, KLA MBMW
A multi-beam mask writer patterns a mask using a massively parallel array of more than 250,000 individually-controllable electron beamlets firing simultaneously, finally breaking…
multi bridge channel structure, mbcfet vs nanosheet, mbcfet fabrication process, mbcfet electrostatics
Multi-Bridge Channel FET (MBCFET): Architecture, Physics & Process Integration The Multi-Bridge Channel Field-Effect Transistor (MBCFET) is Samsung Foundry's proprietary…
mcmm signoff analysis, pvt corner timing, on chip variation ocv, statistical timing analysis
Static Timing Analysis and timing closure constitute the deterministic, vector-independent verification methodology engineered to exhaustively prove that every synchronous path…
chiplet integration, die to die interface, ucle, heterogeneous integration chip
Multi-Die Chiplet Design is the architectural approach of decomposing a monolithic chip into multiple smaller dies (chiplets) that are co-packaged and interconnected — enabling…
chiplet interconnect architecture, ucle chiplet standard, chiplet disaggregation, heterogeneous chiplet integration
Multi-Die Chiplet Design Methodology is the chip architecture approach that disaggregates a monolithic SoC into multiple smaller silicon dies (chiplets) connected through…
chiplet interconnect standard, ucIe chiplet, die to die interface, heterogeneous chiplet
Multi-Die Chiplet Integration is the advanced packaging architecture that decomposes a monolithic SoC into multiple smaller silicon dies (chiplets) interconnected through…
chiplet interconnect technology, chiplet packaging architecture, chiplet die to die interface, chiplet heterogeneous integration
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…
chiplet design methodology, multi die eda, die to die interface, heterogeneous integration design
Multi-Die and Chiplet Design Methodology is the EDA and architectural approach to designing systems composed of multiple smaller silicon dies (chiplets) connected through advanced…
chiplet integration methodology, die-to-die interconnect, heterogeneous integration methodology, multi-die partitioning strategy
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…
advanced packaging
Multi-Layer Transfer is the sequential process of transferring and stacking multiple thin crystalline device layers on top of each other — building true monolithic 3D integrated…
multi-modal microscopy, correlative microscopy, microscopy data fusion, semiconductor correlative microscopy, hypermodal microscopy
No single microscope sees a semiconductor defect in all the ways that matter. Secondary electrons reveal surface form, diffraction reveals crystal orientation, EDS or EELS reveals…
sadp, saqp, double patterning, self aligned multiple patterning, pitch multiplication, lithography
Self-aligned multiple patterning is the pitch multiplication technique where sub-lithographic circuit features are defined not by direct optical resolution but through…