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Glossary

29,259 technical terms and definitions

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mosfet 1962 verify channel inverts capacitance voltage curve

bell labs 1962 cv curve three regimes measured directly, mos transistor 1962 capacitance reveals what iv cannot, silicon mosfet 1962 minimum capacitance confirms inversion

Verify the Channel Inverts: Measuring the MOS Capacitor's C-V Curve 1. Why a Capacitance Measurement Proves What a Simple Electrical Test Cannot This step verifies Step 5's three…

mosfet 1962 mobile ion contamination threshold instability

bell labs 1962 sodium ions drift under gate field bias, mos transistor 1962 clean oxide alone was not enough, silicon mosfet 1962 bias temperature stress reveals drift

Confront Mobile-Ion Contamination: A Threshold Voltage That Can Drift After the Device Is Finished 1. Why a Device That Passes Every Earlier Test Can Still Fail Later This step…

mosfet 1962 measure square law drain current characteristic

bell labs 1962 triode saturation regions two equations one device, mos transistor 1962 current controlled by voltage not current, silicon mosfet 1962 pinch off channel current saturates

Measure the Square-Law Drain Current Characteristic: Controlled by a Voltage, Not a Current 1. Why This Device's Output Curves Don't Look Like Anything Bipolar This step sweeps…

mosfet 1962 qualify switching speed against bipolar

bell labs 1962 gate capacitance slower but draws no current, mos transistor 1962 loses on speed wins on density power, silicon mosfet 1962 epitaxial transistor same year compared

Qualify Switching Speed Against the Epitaxial Bipolar Transistor Just Completed: Losing One Comparison, Winning a Different One 1. Why the Same Test That Proved 1961's Improvement…

mosfet 1962 classify release second transistor family

bell labs 1962 density power not speed the winning axis, mos transistor 1962 insulated gate field effect finally works, silicon mosfet 1962 voltage controlled family industry standard

Classify and Release: A Second, Fundamentally Different Transistor Family Enters Production 1. Why This Device Doesn't Need to Win the Comparison It Just Lost This closing step…

mosfet 1962 step 11 name atalla kahng bell labs demonstration

atalla kahng 1959 1960 mosfet first working device, mos transistor named inventors bell labs

Name Atalla and Kahng: the 1959-60 Bell Labs Demonstration This Series Never Credited Directly 1. A Decade of Anonymous Progress, Finally Given Two Names Step 1 of this series…

mosfet 1962 step 12 rca hofstein heiman first practical mosfet

rca first commercial mos transistor 1962, hofstein heiman practical mosfet

RCA's Hofstein and Heiman Ship First: Turning a Lab Demonstration Into a Sellable Part 1. The Gap Between a Demonstration and a Part A device that works once, in one lab, under…

mosfet 1962 step 13 fairchild bell labs competing mos programs

three simultaneous mos programs 1962, early mos competitive landscape

Fairchild and Bell Labs Were Not Idle: Three Simultaneous MOS Programs, One Winner to Market 1. A Race With Three Runners, Not One By 1962, Bell Labs, Fairchild, and RCA all had…

mosfet 1962 step 14 pmos only reliable polarity 1962

fixed oxide charge early mosfet constraint, why early mos was pmos

Confront Why Only PMOS Was Reliable in 1962: a Fixed Oxide Charge This Series Has Not Yet Named 1. A Constraint Steps 2-10 Worked Around Without Naming Every working MOS device…

mosfet 1962 step 15 die yield economics bipolar comparison

early mosfet yield cost 1962 1963, mos vs bipolar manufacturing cost

Measure the Yield Economics: Why a Simpler Device Did Not Mean a Cheaper One Yet 1. Fewer Process Steps, Not Yet Fewer Defects A MOS transistor needs fewer photomasking…

mosfet 1962 step 16 mos input impedance low power case

mos business case despite lower yield, why rca sold mos anyway

Make the Business Case Anyway: High Input Impedance and Low Power, Even at a Yield Cost 1. A Case That Did Not Depend on Winning the Yield Argument If yield economics alone…

mosfet 1962 step 17 sodium contamination industry response

mos fab cleanliness practices 1960s, industry wide response threshold drift

The Sodium Problem Becomes an Industry Problem: How Fabs Responded, Not Just How It Was Discovered 1. From a Discovered Defect to a Standard Practice This series' Step 7 already…

mosfet 1962 step 18 early commercial mos parts applications

rca mosfet calculator instrumentation use, first mos products 1963

Name the Early Commercial Parts: Where RCA's MOSFETs Actually Shipped 1. Products, Not Just a Device A device is a laboratory result until something ships with it inside; RCA's…

mosfet 1962 step 19 fairchild process work handoff silicongate

fairchild internal mos process development, handoff to silicon gate process 1967

Name What Fairchild Was Already Building: the Process Work This Series Hands Off, Without Retelling 1. A Real Thread, Not a Forced One Step 13 of this extension already named…

mosfet 1962 step 20 close extension single channel mosfet legacy

mosfet 1962 legacy summary, classify single channel mos extension close

Close This Extension: a Commercially Difficult Device That Still Changed What Was Possible 1. An Honest Final Accounting This extension has told a more complicated story than Step…

mosfet basics

mosfet operation, field effect transistor, mosfet

The MOSFET is where the critical dimension finally stopped being set by anything physical at all. The point-contact transistor measured its critical gap with a steady hand and…

mosfet body diode reverse recovery machine learning

mosfet body diode reverse recovery prediction, mosfet body diode, body diode reverse, diode reverse recovery, reverse recovery prediction, mosfet body, body diode, diode reverse

MOSFET Body Diode Reverse Recovery Prediction with Machine Learning Introduction & Motivation MOSFET Body Diode Reverse Recovery Prediction with Machine Learning addresses…

mosfet device operation fundamentals

nmos pmos cmos transistor, threshold voltage channel control, short channel effects scaling, finfet gaa mosfet evolution

MOSFET device operation fundamentals describe how applying a sufficient voltage to a transistor's gate electrode creates or depletes a conducting channel directly beneath that…

mosfet equations

mosfet modeling, threshold voltage, drain current, NMOS PMOS, short channel effects, subthreshold, device physics equations, BSIM, compact model, MOSFET I-V, transconductance

The metal-oxide-semiconductor field-effect transistor is the foundational active device in modern integrated circuits, and every aspect of its behavior can be captured…

MOSFET scaling

transistor scaling, Moore's law, device shrinking, scaling benefits, semiconductor scaling

MOSFET scaling is the practice of making the transistors on an integrated circuit progressively smaller from one technology generation to the next, which is the engine behind…

mosfet scaling 1970s adopt implant vt adjust

mosfet scaling 1970s step 10 adopt implant vt adjust, adopt implant vt adjust

MOSFET Scaling (1970s): Step 10 — Adopting Ion Implantation for Vt Adjustment A shallow, dose-controlled dopant step solves the precision and dual-polarity problems at once. Ion…

mosfet scaling 1970s adopt self aligned polysilicon gate

mosfet scaling 1970s step 6 adopt self aligned polysilicon gate, adopt self aligned polysilicon gate

MOSFET Scaling (1970s): Step 6 — Adopting the Self-Aligned Polysilicon Gate The single process change that unlocked most of a decade of channel-length scaling. The self-aligned…

mosfet scaling 1970s apply dennard constant field scaling

mosfet scaling 1970s step 2 apply dennard constant field scaling, apply dennard constant field scaling

MOSFET Scaling (1970s): Step 2 — Applying Dennard Constant-Field Scaling The 1974 rule set that turned ad hoc shrinks into a repeatable discipline. Robert Dennard, Fritz…

mosfet scaling 1970s bound subthreshold leakage current

mosfet scaling 1970s step 15 bound subthreshold leakage current, bound subthreshold leakage current

MOSFET Scaling (1970s): Step 15 — Bounding Subthreshold Leakage Current Off-state current stops being negligible once threshold margins tighten. A MOSFET nominally 'off' below…

mosfet scaling 1970s confront interconnect scaling mismatch

mosfet scaling 1970s step 17 confront interconnect scaling mismatch, confront interconnect scaling mismatch

MOSFET Scaling (1970s): Step 17 — Confronting the Interconnect Scaling Mismatch Wires do not get faster the way transistors do. Dennard scaling predicts device delay improves…

mosfet scaling 1970s confront planar nmos scaling pressure

mosfet scaling 1970s step 1 confront planar nmos scaling pressure, confront planar nmos scaling pressure

MOSFET Scaling (1970s): Step 1 — Confronting Planar NMOS Scaling Pressure Why 1970s MOS logic could not simply keep using 1960s geometries. By the early 1970s, planar NMOS had…

mosfet scaling 1970s confront velocity saturation limit

mosfet scaling 1970s step 13 confront velocity saturation limit, confront velocity saturation limit

MOSFET Scaling (1970s): Step 13 — Confronting the Velocity Saturation Limit The assumption Dennard's own paper flagged as eventually breaking. Dennard-style scaling assumes…

mosfet scaling 1970s control threshold voltage fundamentals

mosfet scaling 1970s step 9 control threshold voltage fundamentals, control threshold voltage fundamentals

MOSFET Scaling (1970s): Step 9 — Threshold Voltage Control Fundamentals Why Vt had to be set deliberately rather than inherited from doping alone. Threshold voltage, V_t, is…

mosfet scaling 1970s design depletion load nmos pair

mosfet scaling 1970s step 11 design depletion load nmos pair, design depletion load nmos pair

MOSFET Scaling (1970s): Step 11 — Designing the Depletion-Load NMOS Pair How enhancement switch plus depletion load became the standard 1970s NMOS logic cell. With independent…

mosfet scaling 1970s develop locos field isolation

mosfet scaling 1970s step 7 develop locos field isolation, develop locos field isolation

MOSFET Scaling (1970s): Step 7 — Developing LOCOS Field Isolation Recessed, selectively grown oxide replaces simple thick-field-oxide isolation. As transistor density rose…

mosfet scaling 1970s implement channel stop punchthrough control

mosfet scaling 1970s step 16 implement channel stop punchthrough control, implement channel stop punchthrough control

MOSFET Scaling (1970s): Step 16 — Implementing Channel-Stop and Punchthrough Control Two related leakage paths that scaling opened up between and within devices. Beyond…

mosfet scaling 1970s integrate scaling rules into manufacturable flow

mosfet scaling 1970s step 18 integrate scaling rules into manufacturable flow, integrate scaling rules into manufacturable flow

MOSFET Scaling (1970s): Step 18 — Integrating Scaling Rules Into a Manufacturable Flow Turning nine separate fixes into one coherent, repeatable process. By the mid-to-late 1970s…

mosfet scaling 1970s manage hot carrier degradation

mosfet scaling 1970s step 14 manage hot carrier degradation, manage hot carrier degradation

MOSFET Scaling (1970s): Step 14 — Managing Hot-Carrier Degradation High-field carriers start damaging the gate oxide they pass beneath. The same high longitudinal fields that…

mosfet scaling 1970s push channel length against litho limits

mosfet scaling 1970s step 5 push channel length against litho limits, push channel length against litho limits

MOSFET Scaling (1970s): Step 5 — Pushing Channel Length Against Lithography Limits Mask alignment tolerance became the hard floor on channel length. Channel length is defined…

mosfet scaling 1970s push toward one micron node metrology

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…

mosfet scaling 1970s rederive supply voltage under scaling

mosfet scaling 1970s step 3 rederive supply voltage under scaling, rederive supply voltage under scaling

MOSFET Scaling (1970s): Step 3 — Re-Deriving Supply Voltage Under Scaling Why dropping V_DD was the hardest part of the rule set to adopt. Of all the Dennard-rule parameters…

mosfet scaling 1970s set stage for fixed voltage scaling break

mosfet scaling 1970s step 20 set stage for fixed voltage scaling break, set stage for fixed voltage scaling break

MOSFET Scaling (1970s): Step 20 — Setting the Stage for the Fixed-Voltage Scaling Break Where this series ends and the next scaling era begins. This series has tracked 1970s…

mosfet scaling 1970s shrink source drain junction depth

mosfet scaling 1970s step 8 shrink source drain junction depth, shrink source drain junction depth

MOSFET Scaling (1970s): Step 8 — Shrinking Source/Drain Junction Depth Shallow junctions become necessary once channel length drops below a few micrometers. Dennard scaling calls…

mosfet scaling 1970s thin the gate oxide under control

mosfet scaling 1970s step 4 thin the gate oxide under control, thin the gate oxide under control

MOSFET Scaling (1970s): Step 4 — Thinning the Gate Oxide Under Control How thermal oxidation was pushed from ~120 nm toward the 50-70 nm range. Gate oxide thickness sets both…

mosfet scaling 1970s trace short channel threshold rolloff

mosfet scaling 1970s step 12 trace short channel threshold rolloff, trace short channel threshold rolloff

MOSFET Scaling (1970s): Step 12 — Tracing Short-Channel Threshold Rolloff The first clearly non-ideal effect scaled devices ran into. As channel lengths pushed below roughly 2-3…

mosfet switching loss prediction machine learning

mosfet switching loss prediction, mosfet switching loss, switching loss prediction, mosfet switching, switching loss, loss prediction

MOSFET Switching Loss Prediction with Machine Learning Introduction & Motivation MOSFET Switching Loss Prediction with Machine Learning addresses a central problem in power MOSFET…

Mostek

semiconductor company, DRAM leader, MK4096, address multiplexing, memory industry history, 1970s memory maker

Mostek was an American semiconductor company, active primarily in the 1970s and early 1980s, best known for its leadership in dynamic memory and for the MK4096, the 4-kilobit DRAM…

Mostek founding

Texas Instruments spin-off, semiconductor startup, DRAM company origin, 1969 founding, memory maker

The founding of Mostek in 1969 is a notable episode in semiconductor history, as the company was started by engineers who left Texas Instruments to pursue memory and other…

moth-flame-algorithm machine learning

moth-flame algorithm

Moth-Flame Algorithm Introduction & Motivation Moth-Flame Algorithm addresses a central problem in ml process control and convergence-speed-iterations prediction: how to Predict…

motherboard

mainboard, system board, ATX, chipset, CPU socket, UEFI, PCIe slot

A motherboard is the main printed circuit board of a computer, the platform that physically holds the processor, memory modules and expansion cards and supplies the electrical…

motif detection

graph algorithms

Motif Detection (Network Motifs) is the graph mining task of finding statistically significant subgraph patterns — small connected subgraphs that appear in a network significantly…

motion compensation

video understanding

Motion compensation is the alignment process that maps neighboring frames into a common reference frame so temporal information can be fused without ghosting artifacts - it is…

motion compensation

multimodal ai

Motion Compensation is aligning frames using estimated motion to reduce temporal redundancy and improve reconstruction - It improves compression, interpolation, and restoration…

motion forecasting

robotics

Motion Forecasting is a broader generalization of trajectory prediction — predicting the future state (position, velocity, pose, intention) of dynamic agents in an environment…

motion-planning-path-finding machine learning

motion planning path finding, motion planning path, planning path finding, motion planning, planning path, path finding

Motion Planning Path Finding Introduction & Motivation Motion Planning Path Finding addresses a central problem in robotics process control and path-planning-collision-free…