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• EMC (Electromagnetic Compatibility)
The ability of a device, unit of equipment, or system to function satisfactorily in its electromagnetic environment without introducing intolerable electromagnetic disturbances to anything in that environment.
• EMI (Electromagnetic Interference)
Unwanted electromagnetic energy or disruptions that interfere with the normal operation of electronic equipment.
• EM Disturbance
Broadly referred to as "RF noise" within an environment.
• EM Environment
The physical location or setting "where the RF noise exists".
• Immunity
The physical ability of a component or system to reject electromagnetic disturbances and operate as intended.
• Susceptibility
The structural tendency of an apparatus to be easily interfered with or disrupted by surrounding electromagnetic disturbances.
• Emission
The aspect of EMC focused on a device's ability to operate cleanly without emitting interference that degrades others.
• Conducted Emission (CE)
Noise currents generated by an equipment's internal circuit that propagate outward specifically through power lines or signal cables.
• Radiated Emission (RE)
Electromagnetic noise energy that escapes into open space as radio waves, radiating directly from the equipment chassis or external cabling.
• Conducted Immunity / Susceptibility (CS)
A system's capacity to withstand external electrical noise currents or injected disturbances arriving directly through connected power and signal wires.
• Radiated Immunity / Susceptibility (RS)
A system's ability to resist external electromagnetic fields, radio waves, or environmental ambient transmissions impinging directly upon its chassis or wires.
• Intrasystem EMC
Interference problems occurring locally where both the noise source and the victim receptor reside inside the very same piece of equipment.
• Intersystem EMC
Electromagnetic interference interactions taking place between completely distinct, separate pieces of equipment.
• Coupling Path
The physical mechanism, pathway, or medium through which an electromagnetic disturbance travels from a source to a vulnerable victim receptor.
• Intentional Emitters
Devices designed explicitly to radiate radio frequency waves (e.g., broadcast transmitters, mobile phones, wireless LAN, remote transmitters).
• Intentional Receptors
Hardware systems purposely engineered to capture and process transmitted radio waves (e.g., radio/TV receivers, mobile phones, wireless LAN, remote receivers).
• Unintentional Emitters
Electrical circuits that release electromagnetic noise purely as an unwanted byproduct of their normal switching operations (e.g., digital circuits/oscillators, switching circuits, auto ignitions, lightning/ESD).
• Unintentional Receptors
Electronic systems vulnerable to external noise spikes that degrade their normal analog or digital processing streams (e.g., telephone lines, audio-visual systems, analog or digital circuits).
• ESD (Electrostatic Discharge)
The sudden, disruptive transfer of high static electricity charges between bodies or surfaces, typically aggravated by bone-dry air conditions.
• EMR (Electromagnetic Radiation)
A distinct human safety metric defining the exposure limits to high-frequency radio transmissions (RF emissions).
• EMF (Electromagnetic Field)
A distinct human safety metric regulating structural exposure boundaries surrounding AC mains electrical and magnetic fields.
• Class A Devices
Electronic equipment designed strictly for use in non-domestic (commercial, industrial, or medical) environments, which must bear an explicit radio interference hazard warning for domestic usage.
• Class B Devices
Electronic equipment safety-rated for direct placement inside domestic (residential) environments or facilities sharing a low-voltage grid link with living spaces.
• CISPR Standards
International emissions testing regulations specifying boundary limit frameworks based on device applications (e.g., CISPR 11 for Industrial/Scientific/Medical (ISM), CISPR 22 for Information Technology).
• IEC 61000-4 Series
Basic global framework testing metrics defining how devices must withstand core structural vulnerabilities (e.g., IEC 61000-4-2 for ESD, IEC 61000-4-5 for power line surges).
• PCB (Printed Circuit Board)
A rigid or flexible substrate bringing electronic circuits to life physically by configuring traces and surface planes to connect parts.
• PCB Design
The structural design process combining spatial component placement and path routing to establish clear electrical lines on a physical substrate.
• Component Placement
The technical phase of converting an abstract logic schematic layout into an organized mechanical map, arranging parts closely within fixed boundaries.
• PCB Routing
The creative engineering task of layout design where physical copper trace connections are traced out cleanly to wire electrical pathways.
• Surface Mount Technology (SMT)
An influential 1980s micro-electronics trend allowing ultra-small parts to anchor and weld directly onto top or bottom copper faces without pre-drilled holes.
• Single-Sided PCB
A basic, economical board structure containing tracking connections and components confined exclusively to one face, best for low-density tasks.
• Double-Sided PCB
A mid-tier design featuring distinct circuitry traces or parts distributed over both faces, maximizing space density.
• Multi-Layer PCB
Complex substrates holding alternating tiers of distinct copper tracking sheets stacked tightly between insulating cores, required for advanced multi-gigahertz architectures.
• Rigid PCB
Solid, non-bending boards optimized for structural reliability, offering good vibration dampening and clean signal integrity profiles.
• Flex PCB
Micro-thin, malleable circuit sheets capable of bending cleanly around structures, eliminating wiring plugs and offering thermal layout properties.
• Rigid-Flex PCB
A high-performance combination panel pairing standard rigid board centers with interconnected flexible tails, delivering structural shock resistance and simple toolless assembly.
• Albert Hanson
German inventor who filed the earliest 1903 patent prototype containing multi-layer insulation layers and double-sided routing holes for telephone panels.
• Charles Ducas
Pioneer engineer who filed a 1927 patent exploring direct conductive ink patterns stenciled straight over a bare insulating block, pointing the way toward modern electroplating.
• Dr. Paul Eisler
Austrian inventor who revolutionized the WWII electronics era by implementing modern copper-foil glass panels inside tactical radio hardware.
• Design Toolbox
A navigation management panel tracking sheet hierarchies, active layout parameters, and document states.
• Component Toolbar
A quick-access software panel hosting libraries of indicator lights, switches, and analog parts for immediate placement.
• Ratsnest
A real-time unrouted display matrix connecting part terminals via virtual lines, helping developers solve trace placement logic.
• Spreadsheet View
A low-profile text matrix tool tracking precise footprint clearances, coordinate metrics, spatial trace tolerances, and component angles.
• 3D Preview / View
A software visualization tool rendering true-to-life volumetric views of fully loaded modules prior to assembly.