glossary

ESD – abbreviation for electrostatic discharge. Electrostatic discharge is the rapid, spontaneous transfer of electrostatic charge induced by a high electrostatic field. Usually the charge flows through a spark (static discharge) between two bodies at different electrostatic potentials as they approach one another.

Ions – An atom that carries a positive or negative electric charge.

Micron – A unit of length. 1 micron = 1 µm = 10-6 meters = 0.000001 meters = one millionth of a meter. A typical human hair is about 100 microns. A sheet of tissue paper is about 25 microns thick.

panchromatic – Sensitive to a wide range of wavelengths of light. In photography they say panchromatic is sensitive to "all colors" though they mean the limited spectrum we see

Photoresist – A material which becomes soluble when exposed to ultraviolet light. Using photoresist prevents etching or plating of the area it covers (this is also known as resist). Note : There's another kind that becomes insoluble.

Isotropic – 1. Pertaining to a material with properties, such as density, electrical conductivity, electric permittivity, magnetic permeability, or refractive index that do not vary with distance or direction. 2. Pertaining to a material with magnetic, electrical, or electromagnetic properties that do not vary with the direction of static or propagating magnetic, electrical, or electromagnetic fields within the material.