Method of detecting floated lead of electrical component
First Claim
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1. A method of detecting a floated lead of an electrical component comprising the steps of:
- positioning the electrical component above a laser device on the way of feeding the electrical component to a substrate by sucking the electrical component to a nozzle of a pick and place head;
radiating a laser light from the laser device toward the leads of the electrical component thereby to detect the heights of three points of the leads; and
then calculating a virtual plane including the three points of the leads to obtain a height difference of the respective leads with respect to the virtual plane.
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Abstract
The present invention provides a method of detecting a floated lead of an electrical component which involves the steps of positioning an electrical component above a laser device on the way of feeding the electrical component to a substrate by sucking the electrical component to a nozzle of a pick and place head; radiating a laser light from a laser device toward the leads of the electrical component thereby to detect the heights of three points of the leads; and then calculating a virtual plane including the three points of the leads to obtain a height difference of the respective leads with respect to the virtual plane.
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2 Claims
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1. A method of detecting a floated lead of an electrical component comprising the steps of:
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positioning the electrical component above a laser device on the way of feeding the electrical component to a substrate by sucking the electrical component to a nozzle of a pick and place head; radiating a laser light from the laser device toward the leads of the electrical component thereby to detect the heights of three points of the leads; and then calculating a virtual plane including the three points of the leads to obtain a height difference of the respective leads with respect to the virtual plane. - View Dependent Claims (2)
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Current AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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Original AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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InventorsSakaguchi, Hiroyuki
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Primary Examiner(s)Karlsen, Ernest F.
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Assistant Examiner(s)BURNS, WILLIAM
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Application NumberUS07/696,388Time in Patent Office575 DaysField of Search324/158 R, 324/158 T, 324/23.1, 324/501, 324/533, 358/101, 358/106, 358/107, 356/394, 356/375, 356/400, 364/550, 364/559, 382/8US Class Current324/537CPC Class CodesH05K 13/0813 Controlling of single compo...
