Float-zone crystal growth

Float-zone crystal growth

The method used to form single crystal semiconductor substrates (alternative to CZ);poly crystalline material is converted into single-crystal by locally melting the plane where a single crystal seed is contacting the poly crystalline material; used to make very pure, high resistance Si wafers; does not allow as large wafers (< 200mm) as CZ does; radial distribution of dopant in FZ wafer is not as uniform as in CZ wafer.

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Industry/Domain: Semiconductors
Category: Silicon wafer
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float-zone crystal growth

Semiconductors; Silicon wafer

The method used to form single crystal semiconductor substrates (alternative to CZ);poly crystalline material is converted into single-crystal by locally melting the plane where a ...

sputter deposition

Semiconductors; Silicon wafer

Bombardment of a solid (target) by high energy chemically inert ions (e.g. Ar+); causes ejection of atoms from the target which are then redeposited on the surface of a substrate ...

wafer fabrication

Semiconductors; Silicon wafer

Process in which single crystal semiconductor ingot is fabricated and transformed by cutting, grinding,polishing, and cleaning into a circular wafer with desired diameter and ...

warp

Semiconductors; Silicon wafer

Deviation from a plane of a slice or wafer centerline containing both concave and convex regions.

wafer flat

Semiconductors; Silicon wafer

Flat area on the perimeter of the wafer; location and number of wafer flats contains information on crystal orientation of the wafer and the dopant type (n-type or p-type).

wafer diameter

Semiconductors; Silicon wafer

The linear distance across the surface of a circular slice which contains the slice center and excludes any flats or other peripheral fiduciary areas. Standard silicon wafer ...

wafer bonding

Semiconductors; Silicon wafer

Process in which two semiconductor wafers are bonded to form a single substrate; commonly applied to form SOI substrates; bonding of wafers of different materials, e.g. Gaas on ...

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