Electronic Glossary

What’s A Circuit Diagram?   A Circuit Diagram (Wiring Diagram, Electrical Diagram, Elementary Diagram, Electronic Schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components …

A layer of a PCB board containing conductors, including ground and voltage planes.

The Ceramic Leadless Chip Carrier (CLCC or LCC) is a square or rectangular surface-mount ceramic chip package that has no leads, but uses metal pads for contact and comes in both socket mount and surface mount varieties. For electrical connection …

The super-clean environment in which semiconductors are manufactured. The lower the rating (e.g. Class 100), the cleaner the facility. These rooms typically have hundreds of thousands of particles less per cubic meter than the normal environment.

A hole in the conductive pattern that is larger than, and coaxial with a hole in the base material of a PCB board.

A clearance (also called isolation) is space used to create a separation from a power or ground layer near a plated hole on an inner layer. A clearance will prevent a short from the plated hole to either the power …

A square waveform used for synchronizing and timing of several circuits.

Circuit having a complete path for current flow.

Complementary Metal Oxide Semiconductor (CMOS) is a MOS device containing both N-channel and P-channel MOS active elements. One of two basic processes (MOS and bipolar) used to fabricate integrated circuits.

Computer Numerical Control (CNC). Refers to the computer control that is used with modern day machinery. It is most often used in the PCB manufacturing with CNC Drill Machines as well as Rout machines that cut the individual boards away …