Test head manipulator
First Claim
Patent Images
1. A system for positioning a load, comprising:
- an arm unit portion for moving said load in a same direction as a vertical axis;
a motor drive having a driving portion for selectively driving said arm unit portion so that said load moves in the same direction as the vertical axis, said driving portion physically disengageable so that non-motorized motion of said load in the same direction as the vertical axis is possible when said motor drive is not in use, anda counterbalance coupled to said load and configured to substantially support said load when said driving portion is disengaged.
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Abstract
A system is useful for positioning a load, such as a test head. The system includes an arm which supports the load and which moves along a first vertical axis. The system also includes a rotation unit for rotating the first vertical axis about a second vertical axis spaced apart from the first vertical axis.
27 Citations
10 Claims
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1. A system for positioning a load, comprising:
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an arm unit portion for moving said load in a same direction as a vertical axis; a motor drive having a driving portion for selectively driving said arm unit portion so that said load moves in the same direction as the vertical axis, said driving portion physically disengageable so that non-motorized motion of said load in the same direction as the vertical axis is possible when said motor drive is not in use, and a counterbalance coupled to said load and configured to substantially support said load when said driving portion is disengaged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A positioner for moving a test head into docking position with a device handler, said positioner comprising:
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an arm unit portion for moving said test head in a same direction as a vertical axis; a motor drive having a driving portion for selectively driving said arm unit portion so that said test head moves in the same direction as the vertical axis, said driving portion physically movable to disengage said driving portion so that rotation of said driving portion does not effect movement of said arm unit portion in the same direction as the vertical axis, and a counterbalance coupled to said test head and configured to substantially support said test head when said driving portion is disengaged. - View Dependent Claims (10)
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Specification