SMT dictionary & SMT abbreviations

In the Surface Mount Technology business there is a lot of abbreviations. 
Some everyone know - others you need to look up.



SMT dictionary & SMT abbreviations

What is AOI?

AMF                 Auto Mount Feedback 

AOI                   Automated Optical Inspection 

AXI                   Automatic X-ray inspection 

BGA                  Ball Grid Array - a type of SMD

What does CPH stand for?

CPH                  Components Per Hour

EMC                 Electromagnetic Compatibility

EMI                   Electromagnetic interference 

EMT                  Electronic Manufacturing Technology 

What does EMS mean?

EMS                  Electronic Manufacturing Service

ESD                   Electrostatic Discharge 

FOV                  Field of view


PGA                  Pin Grid Array

PTH                  Plated Through Hole

What is a PCB? 

PCB                  Printed Circuit Board

PCBA              Printed Circuit Board Assembled

PWB                Printed Wiring Board

P&P                  Pick & Place machines for SMD mounting

What does OEM mean? 

OEM                Original Equipment Manufacturer

SIR                    Surface Insulation Resistance

SMA                 Surface-mount assembly (module assembled with SMT)

SMC                 Surface-mount components (components for SMT)

SMD                 Surface Mount Devices

SME                  Surface-mount equipment (SMT assembling machines)

SMEMA          Surface Mount Equipment Manufacturers Association

What does SMT mean? 

SMT                  Surface Mount Technology

SMP                  Surface-mount packages (SMD case forms)

SOJ                   Small Outline J-leaded

SOT                   Small Outline Transistor

SPI                     Solder Paste Inspection


THT                 Through Hole Technology (used in connection with soldering)