Electronic Glossary

What is P-N Junction?   P-N Junction or PN Junction is a boundary or interface between two types of semiconductor materials, p-type and n-type, inside a single crystal of semiconductor. The “p” (positive) side contains an excess of holes, while …

Pin Array Cartridge (PAC)

Pad is the exposed metal on a printed circuit board design, which connects each end of the via barrel to the component, plane or trace.

Pad Fillets improve etched yield and material strength. Fillets are appropriate when the pad diameter is greater than the connecting strand width. Acute angles at the interface between conductors and pads are to be avoided by using fillets to minimize …

The Pad Size is the actual size of a pad, which is what the pins of an SMD component rest on to be soldered. The area where artwork designs fail most to allow enough processing tolerance to meet the minimum …

The process of electroplating copper on all conductive surfaces and holes of a circuit board. A circuit is defined by applying a resist pattern to the plated surfaces and etching away all copper not covered by resist.

PCB Panelization, is a manufacturing technique, in which several small printed circuit boards are grouped together by CAM engineer or designer for forming as a panel. PCB Panel is also called PCB Array or PCB Matrix. The panel can include …

What Is A Parallel Circuit?   A Parallel Circuit comprises branches so that the current divided and only part of it flows through any branch. The voltage, or potential difference, across each branch of a parallel circuit is the same, …

1. Component. 2. A decal in a PWB database or drawing. 3. A symbol in a schematic.

Part number, often abbreviated P/N, PN, Part No., or Part #. For printed circuit board, part number is the name of your Gerber file .zip or .rar folder, and we use the part number throughout the entire PCB board manufacturing …