Polishing apparatus
First Claim
Patent Images
1. A polishing apparatus comprising:
- a polishing table having a polishing surface;
top rings for holding workpieces and pressing the workpieces against said polishing surface;
a carousel for supporting said top rings and indexing said top rings;
a rotary transporter disposed in a position which can be accessed by said top rings, said rotary transporter having on a circumference thereof portions for holding the workpieces, and said rotary transporter having an indexing function for indexing said portions; and
a pusher for transferring the workpieces between said rotary transporter and said top rings.
2 Assignments
0 Petitions
Accused Products
Abstract
A multi-head type polishing apparatus includes a polishing table having a polishing surface, a plurality of top rings for holding workpieces and pressing the workpieces against the polishing surface, and a carousel for supporting the top rings and indexing the top rings. The polishing apparatus further includes a rotary transporter disposed in a position which can be accessed by the top rings, and having a plurality of portions positioned on a predetermined circumference from a center of rotation of the rotary transporter for holding the workpieces. The polishing apparatus also has a pusher for transferring the workpieces between the rotary transporter and the top rings.
81 Citations
14 Claims
-
1. A polishing apparatus comprising:
-
a polishing table having a polishing surface;
top rings for holding workpieces and pressing the workpieces against said polishing surface;
a carousel for supporting said top rings and indexing said top rings;
a rotary transporter disposed in a position which can be accessed by said top rings, said rotary transporter having on a circumference thereof portions for holding the workpieces, and said rotary transporter having an indexing function for indexing said portions; and
a pusher for transferring the workpieces between said rotary transporter and said top rings. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A polishing apparatus comprising:
-
two polishing units, each of said two polishing units including;
(i) a polishing table having a polishing surface;
(ii) top rings for holding workpieces and pressing the workpieces against said polishing surface; and
(iii) a carousel for supporting said top rings and indexing said top rings;
two rotary transporters, said two rotary transporters being disposed in positions which can be accessed by said top rings of said two polishing units, respectively, each of said two rotary transporters having on a circumference thereof portions for holding the workpieces, and each of said two rotary transporters having an indexing function for indexing said portions; and
two pushers, said two pushers being adapted for transferring the workpieces between said two rotary transporters and said top rings of said two polishing units, respectively. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
Specification