Metal working – Method of mechanical manufacture – Electrical device making
Patent
1985-08-26
1986-09-09
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Electrical device making
29740, 156344, 227 1, 227 6, 414225, H05K 330, B23P 1900
Patent
active
046100830
ABSTRACT:
An electronic component matching system operates in conjunction with a component transport arrangement wherein a component-carrying supply tape from which components are removed for positioning upon a circuit board in a matched manner is linearly displaced. The components are thus sequentially moved to a pick-up point whereupon a predetermined number N of components having similar operating characteristics are incorporated in the same circuit. As the component-carrying supply tape is displaced toward the component pick-up point, an electro-optical sensor detects the presence or absence of components on the supply tape and provides this information to a microcomputer controller. The stationary sensor is positioned in spaced relation from the pick-up point along the component-carrying supply tape displacement path to allow for the detection of the predetermined number of components between the sensor and the pick-up point to ensure that a matched set of N components is available on the tape for incorporation in the same circuit. If the sensor determines that less than N components are present between the sensor and the pick-up point, the microcomputer advances the supply tape to the next group of matched components to prevent components from different matched groups having different operating characteristics from being incorporated in the same circuit. This system is particularly adapted for the automatic positioning of components such as transistors and diodes having matched operating characteristics for incorporation in the same circuit.
REFERENCES:
patent: 4069931 (1978-01-01), Saylors
patent: 4253906 (1981-03-01), Boogers
patent: 4274196 (1981-06-01), Lemmer
patent: 4307832 (1981-12-01), Taki et al.
patent: 4327482 (1982-05-01), Araki et al.
patent: 4472218 (1984-09-01), Avedissian et al.
patent: 4476626 (1984-10-01), Gumbert et al.
Campisi Carl
Kilinskis David C.
Skerlos Peter C.
Sorlie Egil
Arbes Carl J.
Goldberg Howard N.
Zenith Electronics Corporation
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