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Vibratory Feeder Bowl for Five Ball Transistor Chips

IP.com Disclosure Number: IPCOM000092940D
Original Publication Date: 1967-Mar-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Bresg, V: AUTHOR [+2]

Abstract

The vibratory feeder bowl, only a segment of which is shown, functions to orientate, feed, and reject improperly orientated transistor chips with five-ball contacts in transport to an operating station. These features, in conjunction with conventional integration and overfeed sections, adapt a feeder bowl to function with a chip. The latter, in a vertical position, has a first line of two spaced balls adjacent a bottom edge. There is an intermediate parallel line of the two spaced balls. Also, there is a single ball at the upper end of the chip spaced centrally between its lateral sides.

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Vibratory Feeder Bowl for Five Ball Transistor Chips

The vibratory feeder bowl, only a segment of which is shown, functions to orientate, feed, and reject improperly orientated transistor chips with five-ball contacts in transport to an operating station. These features, in conjunction with conventional integration and overfeed sections, adapt a feeder bowl to function with a chip. The latter, in a vertical position, has a first line of two spaced balls adjacent a bottom edge. There is an intermediate parallel line of the two spaced balls. Also, there is a single ball at the upper end of the chip spaced centrally between its lateral sides.

Section A orientates chips 2 on their flat side with single ball 3 in a trailing position. Transistors 2 are tracked by a spaced pair of balls in groove 4 to a groove fade point 5 where they tumble onto transport shelf 6 to be fed to section
B.

Section B includes gap 7 in shelf 6 which rejects chips having the single ball 3 in the lead configuration in conjunction with the deflection of the chip upon engagement of the single ball 3 with ramped shoulder 8. Tracking groove 9 is also developed with shoulder 8 to engage the arcuate configuration is also employed to lay down chips from a vertical to a horizontal position.

Groove 10 is normally disposed above a chip in the horizontal position, but functions, in conjunction with groove 9, to engage one or more balls of the chip in the vertical position and to elevate the chip until a...