The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2001
Filed:
Aug. 18, 1999
Masaki Tsujimoto, Urawa, JP;
Kenji Kobayashi, Oomiya, JP;
Hideo Numata, Yokohama, JP;
Keisuke Tokubuchi, Yokohama, JP;
Other;
Abstract
A wafer transfer apparatus for sticking a wafer, which is divided into a multiplicity of chips and which has its surface stuck with a protective tape, to a ring frame by a transfer tape, includes: a positioning unit capable of disposing the protective tape stuck wafer on a positioning table and capable of performing a position adjustment of the wafer in longitudinal, lateral and rotational directions, so that the wafer is located in a reference position; a transfer tape mount unit capable of disposing the protective tape stuck wafer, which has been located in the reference position by the positioning unit, on a transfer tape mount table, and capable of sticking a transfer tape to both a ring frame disposed round periphery of the wafer and back of the wafer, so that the wafer and the ring frame are stuck to each other and integrated; and a protective tape peeling unit capable of disposing the wafer, which has its back covered with the transfer tape and which has been integrated with the ring frame by the transfer tape mount unit, on a protective tape peeling table, and capable of bonding an end of a peeling tape to an end of the protective tape stuck to the wafer surface, and capable of pulling the peeling tape so that the protective tape is peeled from the wafer surface.