Lead frame holding device

Work holders – Relatively movable jaws – Jaw features

Patent

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Details

269254CS, 350531, 414786, G02B 2126

Patent

active

049232940

ABSTRACT:
A device useful to store transport objects retained thereon, and to be retained by the adjustable stage of a microscope for viewing under the microscope. A spring-loaded movable bracket retains the object, such as a lead frame comprising a plurality of semiconductor chips dice, on a planar surface. The movable bracket is affixed to a rod which extends through the device and which manipulates the movable bracket from an open loaded position to a closed position with the object held securely on the device.

REFERENCES:
patent: 703047 (1902-06-01), Dieckmann
patent: 2333114 (1943-11-01), Meyer
patent: 2471103 (1949-05-01), Franks et al.
patent: 2474163 (1949-06-01), Riley
patent: 2486645 (1949-11-01), Hager
patent: 3088729 (1963-05-01), Marcus
patent: 3572888 (1971-03-01), Olympus
patent: 4252303 (1981-02-01), Shimai
patent: 4255077 (1981-03-01), Smith
patent: 4407570 (1983-10-01), Hayasaka
patent: 4508326 (1985-02-01), Andre
patent: 4711438 (1987-12-01), Guarino

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