A contraction of "polycrystalline silicon." Silicon which is deposited on wafers in a form that is crystalline, but is not one continuous crystal like the silicon wafers are. Polysilicon is used as a critical part of a transistor called the transistor gate. It is also sometimes used as a resistor, and as a wire for connecting things together (although it does not conduct electricity as well as the metal wires used in integrated circuits).

More fully known as polycrystalline silicon, a ultra pure form of silicon composed of many crystals. This is the starting material for wafer manufacture.

(Poly) Polycrystalline silicon; extensively used as conductor/gate materials in a highly doped state. Poly films are typically deposited using high-temperature CVD technology.

silicion with randomly oriented grains where each grain is made up of single crystalline material.

Polycrystalline silicon. Used as the structural material for selected MEMS devices.

Conductive material used as an interconnect layer on a chip.