Adhesive bonding and miscellaneous chemical manufacture – Differential fluid etching apparatus – With microwave gas energizing means
Patent
1996-01-23
1998-09-01
Osele, Mark A.
Adhesive bonding and miscellaneous chemical manufacture
Differential fluid etching apparatus
With microwave gas energizing means
156584, 134 5, 134 32, 134 59, 1341043, 134902, 294263, 294265, B32B 3100
Patent
active
058006656
ABSTRACT:
A method of fabricating a semiconductor device includes preparing a semiconductor substrate having a surface and a mechanical strength; adhering a reinforcing plate to the surface of the semiconductor substrate with an adhesive to increase the mechanical strength of the semiconductor substrate and processing the semiconductor substrate; and immersing the semiconductor substrate with the reinforcing plate in a heated solvent to melt and dissolve the adhesive, thereby separating the semiconductor substrate from the reinforcing plate. An apparatus for performing the methods includes a holder for holding the semiconductor substrate with the reinforcing plate; a container for accommodating the holder and for containing a solvent that dissolves the adhesive and a heater for heating the solvent. When the adhesive between the semiconductor substrate and the reinforcing plate is sufficiently dissolved by the solvent, the semiconductor substrate is separated from the reinforcing plate. Therefore, no force is applied to the semiconductor substrate in the direction perpendicular to the surface of the semiconductor substrate, so that unwanted damage of the semiconductor substrate, such as cracking, is avoided.
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Hayase Iwao
Okaniwa Kazuhiro
Mitsubishi Denki & Kabushiki Kaisha
Osele Mark A.
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