Browse Prior Art Database

Crucible for Growing LPE Multilayer Structures

IP.com Disclosure Number: IPCOM000088980D
Original Publication Date: 1977-Aug-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Potemski, RM: AUTHOR [+3]

Abstract

An improved crucible for growing multilayer structures by liquid phase epitaxy (LPE) can be fabricated by providing a wafer recess with planar walls, that the contact between succeeding melts be broken, and that convection is operable to provide solution homogenization at times other than during growth.

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Crucible for Growing LPE Multilayer Structures

An improved crucible for growing multilayer structures by liquid phase epitaxy (LPE) can be fabricated by providing a wafer recess with planar walls, that the contact between succeeding melts be broken, and that convection is operable to provide solution homogenization at times other than during growth.

The melts may be arranged in wells around the circumference of the crucible, and the melts are saturated from a solid source on the wall. Each well is equipped with a carbon piston. The wells are able to index around to a position aligned with a passage to the wafer. The piston for the indexed well forces the melt into the passage, and, in turn, the melt forces any melt in contact with the wafer beyond the wafer into a chamber where it breaks away.

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