Metal working – Method of mechanical manufacture – Electrical device making
Patent
1992-05-15
1993-07-13
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
206328, 140105, 174 524, 437217, 437220, 257723, H01R 4300, B65D 7302
Patent
active
052262260
ABSTRACT:
A tube-shaped tray that comprises adjacent compartments for semiconductor devices disposed linearly along the length of the tray. Each compartment consists of a die-shaped bottom container having a supporting structure conforming to the specified geometry of the leads in the formed semiconductor device. A film of protective and lubricating material is provided for placement on top of the device in each compartment, so that a forming tool can freely and safely cooperate with the supporting structure of the die-shaped bottom container to form the leads of the semiconductor device according to the desired specifications. The tray also includes a slidable retaining cover to prevent spillage and damage of the packaged devices. The invention also describes a process of packaging whereby the tube-shaped tray is positioned longitudinally under an off-loading machine, a semiconductor device with formable leads is off-loaded and placed in each die-shaped compartment under a forming tool, a film of protective and lubricating material is placed over each semiconductor device and under the forming tool, and the forming tool is actuated thereby forming the leads of each semiconductor device in the tray, so that the tray simultaneously provides a support and package of the semiconductor devices with bent leads according to specification. Because of the uni-directional operation of the packaging sequence, the various tools used in the process are required to function only in one direction, which results in a simpler, less expensive, and more reliable operation.
REFERENCES:
patent: 5053852 (1991-10-01), Biswas et al.
patent: 5155902 (1992-10-01), Fierkens
Arbes Carl J.
Durando Antonio R.
Weiss Harry M.
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