Method and apparatus for selectively annealing heterostructures

Details Method and apparatus for selectively annealing heterostructures Method and apparatus for selectively annealing heterostructures

1997-08-14

1998-12-22

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

219709, 438660, 438663, H01L 21324

Patent

active

058513191

ABSTRACT:
The present invention discloses a process for selectively annealing heterostructures using microwaves. A heterostructure, comprised of a material having higher microwave absorption and a material having lower microwave absorption, is exposed to microwaves in the cavity. The higher microwave absorbing material absorbs the microwaves and selectively heats while the lower microwave absorbing material absorbs small amounts of microwaves and minimally heats. The higher microwave absorbing material is thereby annealed onto the less absorbing material which is thermally isolated.

REFERENCES:
patent: 4273950 (1981-06-01), Chitre
patent: 4474625 (1984-10-01), Cohen et al.
patent: 5521360 (1996-05-01), Johnson et al.
patent: 5707466 (1998-01-01), Atwater et al.

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