| Q | |||
| Q | Quality factor | ||
| QA | Quality Assurance | ||
| QAM | Quadrature Amplitude Modulation | ||
| QC | Quality Control | ||
| QCM | Quartz Crystal Microbalances | ||
| QDR | Quick Dump Rinse | ||
| QFD | Quality Function Deployment | ||
| QFP | Quad Flat Pack | ||
| QFT | Quantum Field Theory | ||
| QHE | Quantum Hall Experiment | ||
| QML | Qualified Manufacturers List | ||
| QMS | Quadrupole Mass Spectroscopy | ||
| QoS | Quality of Service | ||
| QPC | Quantum Point Contact | ||
| QPL | Qualified Products List | ||
| QPSK | Quadrature Phase Shift Keying | ||
| QSOP | Quarter Size Outline Package | ||
| QSR | Quality System Review | ||
| QTA | Quick Turn Around | ||
| QUAT-S | QUAdruple Transceiver for S/T Interface | ||
| QW | Quantum Well | ||
| QWIP | Quantum Well, Infra-Red (Photodetector) | ||
| QWIR | Quantum Well, Infra-Red (Detector) | ||
| QWR | Quantum Wire | ||
| R | |||
| R | Resistor; Rosin (flux) | ||
| R2R | Run-to-run | ||
| Ra | Radium | ||
| RA | Rosin Activated | ||
| RAC | Remote Access and Control: Rambus ASIC Cell | ||
| rad | Radian | ||
| RADAR | RAdio Direction And Ranging | ||
| RAE | Residue After Evaporation | ||
| RAID | Redundant Arrays of Inexpensive Disks | ||
| RAIRS | Reflection-Absorption InfraRed Spectroscopy | ||
| RAM | Random Access Memory; Reliability, Availability, and Maintainability | ||
| RAMP | Reliability Analysis and Modeling Program | ||
| RAS | Sun Raster Image format | ||
| RAW | Raw file image format | ||
| Rb | Rubidium | ||
| RBB | Base sheet resistance | ||
| RBC | Red Blood Cell | ||
| RBOC | Regional Bell Operation Company | ||
| RBS | Resonant Bond Scattering; Rutherford Backscattering Spectrometry; Refractive backscattering | ||
| RBSOA | Reverse Bias Safe Operating Area | ||
| RBW | Resolution BandWidth | ||
| RC | sh. notation for (Resistance * Capacitance) | ||
| RCCL | Return Channel Cable and LMDS DTV platforms | ||
| RCS | Revision Control System; Return Channel Satellite; Radar Cross-Section | ||
| RCT | Reference Cluster Tool; Return Channel Terrestrial | ||
| RCTT | DVB-RCT Terminal | ||
| R&D | Research and Development | ||
| RDF | Resource Description Framework | ||
| RDR | Rotating Disk Reactor | ||
| RDRAM | Rambus Dynamic Random Access Memory | ||
| RDS | Radio data system | ||
| RDT | Real Data Transport | ||
| Re | Rhenium | ||
| RE | Rare Earths | ||
| Ref | Reference; Reference Voltage | ||
| RegTP | Regulierungsbehörde für Telekommunikation und Post | ||
| REL | Recommended Exposure Limit; Rights Expression Language | ||
| REM | Reflection Electron Microscopy | ||
| RESSFOX | REcessed Sealed Sidewall Field OXidation | ||
| RETMA | Radio Electronics TV Manufacturers Assoc. | ||
| Rf | Rutherfordium | ||
| RF | Radio Frequency; Resonance Frequency | ||
| RfC | Request for Comment | ||
| RFI | Request For Information; Radio Frequency Interference | ||
| RFIC | Radio Frequency Integrated Circuit | ||
| RFICP | Radio Frequency ICP | ||
| RFID | Radio Frequency IDentification | ||
| RFM | Radio frequency monitoring | ||
| RFO | Restricted flow orifice | ||
| RfP | Request for Plan; Request for Proposal | ||
| RFP | Radio Frequency Probe | ||
| RFQ | Request for quote | ||
| RFS | Regardless of Feature Size | ||
| RFT | Resistive Force Theory; Request For Tender | ||
| RGA | Residual gas analysis | ||
| Rh | Rhodium | ||
| RH | Relative humidity | ||
| RHCP | Right Hand Circularly Polarized | ||
| RHEED | Reflection High-Energy Electron Diffraction | ||
| RHET | Resonant Hot-tunnelling Electron Transistor | ||
| RIBE | Reaction Ion Beam Etching | ||
| RIE | Reactive Ion Etching | ||
| RIM | Read-in mode | ||
| RISC | Reduced Instruction Set Computer/Computing | ||
| RIST | Rule induction and statistical testing | ||
| RKE | Remote Keyless Entry system | ||
| RKKY | Ruderman-Kittel-Kasuya-Yoshida | ||
| RL | Return Loss | ||
| RLE | Windows or CompuServe RLE image format | ||
| RLI | Resist LIthography | ||
| RMA | Rosin Mildly Activated | ||
| RMI | Remote Method Invocation | ||
| RMOS | Refractory Metal-Oxide Semiconductor | ||
| RMS | Root Mean Square; Recipe Management Standard | ||
| RMSEP | Root Mean Square Error of Prediction | ||
| RMTF | Recipe Management Task Force | ||
| Rn | Radon | ||
| RN | Noise Resistance | ||
| RNN | Recurrent Neural Network | ||
| RO | Reverse Osmosis | ||
| ROC | Remote Object Communications | ||
| ROE | Return On Equity | ||
| ROI | Return On Investment | ||
| ROM | Read-Only Memory; Rough Order of Magnitude | ||
| ROS | Record-On-Silicon | ||
| ROX | Run Of eXperiments | ||
| RPC | Remote Procedure Call | ||
| RPM | Revolutions Per Minute | ||
| RPN | Residual Phase Noise | ||
| RPR | Resilient Packet Ring | ||
| RQ | Reportable Quantity | ||
| RR | Removal Rate | ||
| RRMSEP | Relative Root Mean Square Error of Prediction | ||
| RS232 | Norm for serial transmission | ||
| RSE | Reactive sputter etch | ||
| RSH | Remote SHell | ||
| RSM | Response surface methodology; response surface matrix | ||
| RSS | RDF Site Summary | ||
| RST | Reynolds Stress | ||
| RSVP | Resource Reservation Protocol | ||
| RT | Room Temperature | ||
| RTA | Rapid Thermal Anneal | ||
| RTB | Real-time backplane | ||
| RTCP | Real-Time Control Protocol | ||
| RTCVD | Rapid thermal chemical vapor deposition | ||
| RTD | Resistance Temperature Detector; Resonant Tunneling Diode | ||
| RTF | Rich Text Format | ||
| RTL | Resistor-transistor logic; register transfer level | ||
| RTM | Rapid thermal multiprocessing | ||
| RTO | Rapid thermal oxidation; Regenerative thermal oxidizer | ||
| RTOS | Real Time Operating System | ||
| RTP | Rapid Thermal Processing; Real-Time Transport Protocol | ||
| RTR | Real-time reporting | ||
| RTS | Request to send; Random Telegraph Signal | ||
| RTSP | Real-Time Streaming Protocol | ||
| RTSPC | Real-Time Statistical Process Control | ||
| RTV | Room Temperature Vulcanizing | ||
| RTY | ReTrY limit | ||
| Ru | Ruthenium | ||
| RwoH | Reliability without Hermeticity | ||
| RZ | Return to Zero | ||
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