Manipulator with expanded range of motion

Details Manipulator with expanded range of motion Manipulator with expanded range of motion

1997-04-30

2000-02-08

Ballato, Josie

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324754, 414590, G01R 3102

Patent

active

060231734

ABSTRACT:
A manipulator with an expanded range of motion. The manipulator attaches to a testing head for manipulation of the testing head for testing semiconductor devices. A vertical bearing assembly is coupled to a horizontal bearing assembly so as to give vertical and horizontal motion. An expansion joint attaches to the horizontal bearing assembly such that the length of the manipulator may be expanded and retracted. A swing arm attaches to the expansion joint such that it may rotate horizontally. A tumble assembly couples a rotary bearing assembly to the swing arm. The test head attaches to the rotary bearing assembly such that the rotation of the tumble assembly gives tumble rotation and such that the rotation of the rotary bearing assembly gives twist rotation. By rotating the swing arm, tumble rotation may be obtained by rotating the rotary bearing assembly and twist rotation may be obtained by movement of the tumble assembly. The component systems work together to give smooth motion and easy control of the head such that testing may be accomplished for DUT up, DUT down, DUT side and DUT forward using the same tester.

REFERENCES:
patent: 4527942 (1985-07-01), Smith
patent: 4589815 (1986-05-01), Smith
patent: 4705447 (1987-11-01), Smith
patent: 4973015 (1990-11-01), Beaucoup et al.
patent: 5598104 (1997-01-01), Boyette, Jr.
patent: 5606262 (1997-02-01), Montalbano et al.

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