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EP0635872A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Wafer support apparatus

Assignee: Semitool Inc
•
Filing: 1991-04-24
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Granted: —
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Expires: 2011-04-24
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Abstract

Abstract In a single wafer processing apparatus including a portable processing head that can be a portable module or a movable unit mounted to a supporting machine frame. The processing head has wafer support apparatus with grippers comprising movable fingers adapted to grip a wafer. The fingers protrude from a protective wafer plate and are mounted within a flexible diaphragm. Indexing and rotation monitoring assemblies are provided for automation of the wafer processing steps. A complementary processing base includes an upwardly-open bowl that receives a wafer held by the portable processing head. It has a full-diameter movable bottom wall for rapid draining purposes. Liquid and/or gas jets and nozzles supply fluids required within the bowl for processing wafers.

Inventors

  • 👤 Raymon F. Thompson
  • 👤 Aleksander Owczarz

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 02:42
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0451; H10P72/0462; H10P72/0402; H10P72/0418; H10P72/0422; H10P72/0424; H10P72/0426; H10P72/70; H10P72/76; H10P72/7602; H10P72/7604; H10P72/7608; H10P72/7624; H10P72/7626; G; G11; G11B; G11B7/00; G11B7/24; G11B7/26; Y; Y10; Y10S; Y10S134/00; Y10S134/902

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 26 words
A gripper for holding semiconductor or other wafers, including: a finger (40); and characterised in that: the finger (40) is mounted within a flexible supporting diaphragm.
Claim 2
Dependent Claim 24 words
A gripper according to claim 1, and further characterised by an actuator means (50, 51) for selectively moving the finger (40) by angular deflection.
Claim 3
Dependent Claim 30 words
A gripper according to claim 2, and further characterised in that the actuator means comprises: an annular ring (50) and at least one actuator (51) for moving the annular ring
Claim 4
Dependent Claim 19 words
A gripper according to claim 1, and further characterised by a seal (43) which seals the flexible supporting diaphragm.
Claim 5
Dependent Claim 18 words
A gripper according to claim 1, and further characterised by a ring (44) used in mounting the gripper.
Claim 6
Dependent Claim 18 words
A gripper according to claim 1, and further characterised by a flange (43) used in mounting the gripper.
Claim 7
Dependent Claim 13 words
Wafer processing apparatus including at least one gripper according to any preceding claim.
Claim 8
Dependent Claim 38 words
Wafer processing apparatus comprising a stationary frame, at least one processing base and a complementary processing head mounted to the frame for movement relative to one another, and gripper means for selectively engaging the edges of a wafer.
Claim 9
Dependent Claim 53 words
Wafer processing apparatus including at least one gripper according to claim 1, characterised in that the gripper is coupled to actuator means for moving the gripper between engaged and disengaged positions, the actuator means comprising an annular ring coaxially positioned about the reference axis engageable with lever means connected to the gripper finger.
Claim 10
Dependent Claim 24 words
Apparatus according to claim 9, characterised by yieldable biasing means operably connected to the finger for normally urging the finger to its closed position.
Claim 11
Dependent Claim 32 words
Wafer processing apparatus having a plurality of grippers according to claim 1, characterised in that the grippers are movable between open and closed positions in response to movement of common actuator means.

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