3,533 technical terms and definitions
400g 800g transceiver, dsp optical transceiver, coherent optical ic, optical module chip design
Silicon photonics and optical I/O technologies integrate high-density optical waveguides, electro-optic modulators, photodetectors, and heterogeneous laser sources onto standard…
lithography mathematics, optical lithography math, lithography equations, rayleigh equation, fourier optics, hopkins formulation, tcc, zernike polynomials, opc mathematics, ilt mathematics, smo optimization
Computational Lithography and Optical Proximity Correction constitute the mathematical and algorithmic backbone of sub-wavelength semiconductor patterning. Operating deep within…
computational lithography, inverse lithography, ilt, opc optimization, source mask optimization, smo, gradient descent, adjoint method, machine learning lithography
Computational Lithography and Optical Proximity Correction constitute the mathematical and algorithmic backbone of sub-wavelength semiconductor patterning. Operating deep within…
semiconductor, thin, film, transistors, TFT, polymer, small, molecule
Organic Semiconductor Thin Film Transistors is transistors using organic materials (polymers, small molecules) as semiconductor channel, enabling low-cost manufacturing…
advanced packaging, cowos, rdl interposer, 2.5d packaging
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.…
organic electronics, OTFT, OLED material, conjugated polymer
Organic semiconductor. is a carbon-based molecule or polymer in which conjugated bonds permit electronic excitation and charge transport. Delocalized pi orbitals along a molecular…
osat, outsourced semiconductor assembly and test, industry
OSAT (Outsourced Semiconductor Assembly and Test) Overview OSATs are third-party companies that provide semiconductor packaging (assembly) and testing services for fabless chip…
over-etch, plasma etch selectivity, etch endpoint detection, via etch process, semiconductor etching
Over-Etch in Semiconductor Plasma Etching is the deliberate extension of etch time beyond nominal endpoint to ensure complete target-layer removal across all die and wafer…
lithography overlay, overlay error, on-product overlay, alignment error, scanner overlay, edge placement error, epe, high-order overlay, dbo overlay, metrology, lithography
Lithography overlay is the vector positioning accuracy with which a newly patterned semiconductor device layer is aligned relative to an existing reference layer on the wafer…
registration, lithography, control, alignment, overlay error, on-product overlay, high-order overlay
Lithography overlay is the vector positioning accuracy with which a newly patterned semiconductor device layer is aligned relative to an existing reference layer on the wafer…
wafer alignment marks, registration accuracy, overlay metrology, higher order corrections, overlay, lithography
Lithography overlay is the vector positioning accuracy with which a newly patterned semiconductor device layer is aligned relative to an existing reference layer on the wafer…
overlay, lithography overlay error, on-product overlay, scanner alignment error, inter-field overlay, intra-field overlay, edge placement error, metrology, lithography
Lithography overlay is the vector positioning accuracy with which a newly patterned semiconductor device layer is aligned relative to an existing reference layer on the wafer…
overlay control, alignment accuracy, overlay metrology, overlay improvement
Overlay Error Budget Management is the systematic allocation and control of alignment errors across lithography, etch, deposition, and CMP processes to maintain total overlay…
metrology, interfield overlay, intrafield overlay, lens distortion, per-exposure correction, non-correctable residual, advanced process control, APC, tool matching
An overlay fingerprint is the systematic, repeatable pattern an overlay error map forms across a wafer or across exposure fields — decomposed into named components like…
high-order overlay, metrology, overlay correction
High-Order Overlay characterizes overlay errors beyond simple X-Y translation — measuring rotation, magnification, skew, and higher-order distortions that affect layer-to-layer…
image based overlay IBO, diffraction based overlay DBO, overlay control correction, overlay budget allocation
Overlay metrology measures the in-plane registration vector between a newly patterned lithography layer and a reference layer already on the wafer. A tool observes dedicated…
lithography overlay mark registration, image based overlay IBO, diffraction based overlay DBO, tool induced shift TIS, sub nanometer overlay error budget
Overlay metrology measures the in-plane registration vector between a newly patterned lithography layer and a reference layer already on the wafer. A tool observes dedicated…
overlay error, lithography overlay, overlay measurement, alignment error litho
Overlay metrology measures the in-plane registration vector between a newly patterned lithography layer and a reference layer already on the wafer. A tool observes dedicated…
overlay metrology sampling plan optimization prediction, overlay metrology sampling, metrology sampling plan, sampling plan optimization, overlay metrology
Overlay Metrology Sampling Plan Optimization Prediction with Machine Learning Introduction & Motivation Overlay Metrology Sampling Plan Optimization Prediction with Machine…
overlay metrology target asymmetry bias prediction, overlay metrology target, metrology target asymmetry, target asymmetry bias, asymmetry bias prediction
Overlay Metrology Target Asymmetry Bias Prediction with Machine Learning Introduction & Motivation Overlay Metrology Target Asymmetry Bias Prediction with Machine Learning…
overlay metrology target design optimization machine learning, overlay metrology, target design optimization, overlay metrology target design optimization, metrology target
Overlay Metrology Target Design Optimization with Machine Learning Introduction & Motivation Overlay Metrology Target Design Optimization with Machine Learning addresses a central…
metrology, overlay budget, scanner contribution, process contribution, metrology uncertainty, root sum square RSS, yield cliff, edge placement error, advanced node overlay tolerance
The overlay process window is the maximum registration error two patterned layers can tolerate while the device still functions correctly — the hard numerical tolerance that…
wafer processing predicting cmp planarization uniformity for oxide layers, wafer processing predicting, processing predicting cmp, predicting cmp planarization, uniformity oxide layers
Wafer Processing: Predicting CMP planarization uniformity for oxide layers Introduction & Motivation Wafer Processing: Predicting CMP planarization uniformity for oxide layers…
cvd oxide deposition, silicon dioxide deposition, sio2 deposition, deposited silicon oxide, cvd silicon oxide, silane oxide cvd, oxide film deposition, oxide deposition method, semiconductor oxide deposition, cvd sio2, dielectric oxide deposition
CVD oxide deposition forms a silicon–oxygen-based solid on a wafer from vapor-phase precursors rather than consuming the underlying silicon by thermal oxidation. The deposited…
oxide-semiconductor band alignment prediction, oxide-semiconductor band alignment, band alignment prediction, oxide-semiconductor band, band alignment, alignment prediction
Oxide-Semiconductor Band Alignment Prediction with Machine Learning Introduction & Motivation Oxide-Semiconductor Band Alignment Prediction with Machine Learning addresses…
advanced packaging
Oxide-to-Oxide Bonding is the dielectric component of hybrid bonding where two SiO₂ surfaces are directly bonded through molecular forces — requiring extreme surface smoothness (<…
p well process, single-well cmos, cmos well architecture, semiconductor process wells, twin-well cmos comparison
P-well CMOS process builds NMOS transistors inside a p-type well diffused into an n-type starting substrate, while PMOS transistors sit directly in the surrounding n-substrate…
packaging, can you package, assembly, package my chips
Packaging is the step that turns a finished, fragile silicon die into a usable component: it protects the chip mechanically and environmentally, connects its microscopic on-chip…
packaging
Package body size is the length and width dimensions of the package body excluding lead extensions or terminal protrusions - it defines board footprint density and mechanical…
packaging
Package dimensions is the measured geometric attributes of semiconductor packages including body size, thickness, lead features, and offsets - they determine mechanical fit…
packaging
Package height is the overall vertical dimension of a semiconductor package from board-contact plane to top surface - it determines z-axis clearance, stacking compatibility…
packaging
Package marking is the process of permanently printing or engraving identification information onto the surface of a semiconductor package. This marking provides essential…
packaging
Package molding is the semiconductor assembly process that encapsulates dies and interconnect structures in protective molding compound - it provides mechanical protection…
pop packaging, pop memory, stacked package, memory logic pop, 3d package stack
Package-on-Package (PoP) is the 3D packaging configuration that stacks a memory package (LPDDR DRAM) directly on top of a processor package (SoC/AP), connecting them through…
packaging
Package outline drawings is the technical drawings that specify external package geometry, dimensions, tolerances, and reference features - they are the authoritative interface…
packaging
Package warpage from molding is the out-of-plane deformation of packaged devices caused by residual stress and thermal mismatch generated during molding and cure - it affects…
advanced chip packaging, semiconductor package landscape
For most of computing history, more performance meant more transistors on one monolithic die. As that path slows, the industry increasingly gains performance through advanced…
ABF, Ajinomoto build-up film, glass core, fine line, HDI
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…
packaging, large-scale, processing, throughput, cost, RDL, singulation
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…
panel-level packaging warpage prediction, panel-level packaging warpage, packaging warpage prediction, panel-level packaging, packaging warpage, warpage prediction
Panel-Level Packaging Warpage Prediction with Machine Learning Introduction & Motivation Panel-Level Packaging Warpage Prediction with Machine Learning addresses a central problem…
panel level packaging warpage prediction with machine learning, panel level packaging warpage prediction machine learning, panel level, packaging warpage prediction, cte rdl
Panel-Level Packaging Warpage Prediction with Machine Learning Introduction & Motivation Panel-Level Packaging Warpage Prediction with Machine Learning addresses a central problem…
metrology
Parametric testing measures key electrical parameters of transistors and structures on the wafer to monitor process health and detect process shifts. Purpose: Verify that…
parametric test structure, wafer parametric test, parametric electrical test, pcm parametric test
Parametric testing is the electrical checkpoint that stands between a finished process flow and a wafer being released to the next stage, using small dedicated test structures…
optimization
Pareto Optimization in semiconductor manufacturing is the identification of the set of non-dominated solutions (Pareto front) — where no solution can improve one objective without…
process integration, dual-damascene, via-first, trench-first, via lithography, aspect ratio, trench etch, BEOL patterning, resist defects
Partial via-first is a hybrid dual-damascene integration sequence that starts etching the via before the trench is even patterned, but deliberately stops that via etch partway…
metrology
Particle Counting on Surfaces is the automated, full-wafer laser scanning inspection technique that detects, localizes, and sizes individual particle defects on bare silicon wafer…
metrology
Particle Size Distribution (PSD) is the statistical characterization of particle contamination that reports defect counts binned by size rather than as a single total number…
pso chip design, swarm intelligence routing, pso parameter tuning, velocity position update pso
Particle Swarm Optimization (PSO) is the swarm intelligence algorithm inspired by bird flocking and fish schooling that optimizes chip design parameters by maintaining…
chip passivation, final coating, nitride passivation
Passivation Layer — the final protective coating deposited over the completed chip to shield it from moisture, contamination, mechanical damage, and corrosion during packaging…
chip passivation, final passivation semiconductor, sin passivation, polyimide passivation
Passivation Layer Deposition is the final protective thin-film coating applied over the completed integrated circuit — typically a bilayer of silicon nitride (SiN) over silicon…