Electrical component placing apparatus and placing method theref

Details Electrical component placing apparatus and placing method theref Electrical component placing apparatus and placing method theref

1991-04-17

1992-10-20

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Electrical device making

29740, 29840, H05K 330, B23P 1900

Patent

active

051559030

ABSTRACT:
There are irregularities in the thicknesses, longitudinal and lateral sizes of electrical components, which cause placement errors of the electrical components on substrates. Therefore, the thickness, longitudinal and lateral sizes of the electrical component is measured during feeding the electrical component to the substrate. The irregularity of the thicknesses of the electrical components can be corrected by regulating the vertical stroke of a nozzle. The temporary values of the longitudinal and lateral sizes of the electrical component are registered in advance in a computer. When the measured values fall within the allowable range of the temporary values, the correction value of the temporary value based on the measured value is corrected, and the correction value is registered as a new reference value in the computer.

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patent: 5033185 (1991-07-01), Hidese

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