SUBSTRATE HANDLING SYSTEM FOR ALIGNING AND ORIENTING SUBSTRATES DURING A TRANSFER OPERATION
A system for sensing, orienting, and transporting wafers in an automated wafer handling process that reduces the generation of particles and contamination so that the wafer yield is increased. The system includes a robotic arm for moving a wafer from one station to a destination station, and an end-...
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Format | Patent |
Language | English |
Published |
18.08.2016
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Subjects | |
Online Access | Get full text |
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Abstract | A system for sensing, orienting, and transporting wafers in an automated wafer handling process that reduces the generation of particles and contamination so that the wafer yield is increased. The system includes a robotic arm for moving a wafer from one station to a destination station, and an end-effector connected to an end of the robotic arm for receiving the wafer. The end-effector includes a mechanism for gripping the wafer, a direct drive motor for rotating the wafer gripping mechanism, and at least one sensor for sensing the location and orientation of the wafer. A control processor calculates the location of the center and the notch of the wafer based on measurements by the sensor(s) and generates an alignment signal for rotating the wafer gripping mechanism so that the wafer is oriented at a predetermined position on the end-effector while the robotic arm is moving to another station. |
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AbstractList | A system for sensing, orienting, and transporting wafers in an automated wafer handling process that reduces the generation of particles and contamination so that the wafer yield is increased. The system includes a robotic arm for moving a wafer from one station to a destination station, and an end-effector connected to an end of the robotic arm for receiving the wafer. The end-effector includes a mechanism for gripping the wafer, a direct drive motor for rotating the wafer gripping mechanism, and at least one sensor for sensing the location and orientation of the wafer. A control processor calculates the location of the center and the notch of the wafer based on measurements by the sensor(s) and generates an alignment signal for rotating the wafer gripping mechanism so that the wafer is oriented at a predetermined position on the end-effector while the robotic arm is moving to another station. |
Author | Coady Matthew W |
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Notes | Application Number: US201314089439 |
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RelatedCompanies | Brooks Automation, Inc |
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Snippet | A system for sensing, orienting, and transporting wafers in an automated wafer handling process that reduces the generation of particles and contamination so... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY SEMICONDUCTOR DEVICES |
Title | SUBSTRATE HANDLING SYSTEM FOR ALIGNING AND ORIENTING SUBSTRATES DURING A TRANSFER OPERATION |
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