Pin grid array straightening method and apparatus
AssigneeAmerican Tech Manufacturing, Inc.
InventorRichard Moloney
Life of this patent
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Abstract
In an apparatus for aligning pins of PGA devices in a predetermined array of parallel rows, a comb assembly includes a plurality of tines disposed in side-by-side spaced parallel array. Adjacent tines are spaced apart a distance greater than the maximum cross section of a pin of the PGA device and a slide mechanism actuates the PGA device through the comb assembly whereby the comb tines engage between the rows of pins in the PGA device and straighten the same by a combing action. The comb tines are oriented relative to the PGA device to engage the pins along substantially their entire length.
Claims13
In apparatus for aligning pins of PGA devices in a predetermined array of parallel rows, a first support surface for the devices so that they can be moved in a predetermined plane, a comb assembly including a plurality of tines disposed in side-by-side spaced parallel array at a predetermined fixed angle to said plane, adjacent tines being spaced apart a distance greater than the maximum cross section of a pin of the PGA device and a slide mechanism for actuating the PGA device through the comb assembly whereby the comb tines engage between the rows of pins in the PGA device and straighten the same by a combing action, said comb tines being oriented relative to the PGA device to engage the pins along substantially their entire length.
In apparatus as claimed in 1, wherein the height of the comb assembly above the slide base for the PGA device is selectively adjustable.
In apparatus for straightening pins of PGA devices, at least two grid plates having a series of openings therein of a cross section greater than the cross section of the pins of the PGA device and wherein adjacent openings are located on centers generally equal to the center spacing between adjacent pins of said PGA device and actuator means for moving the plates transversely relative to one another to effect displacement of aligned openings of said plates, said actuator means operable between a rest position wherein the openings of the grid plates are axially aligned and an orbital operative path wherein the openings are offset to straighten the leads and relieve stress in the leads and biasing means normally biasing the actuator means to said rest position.
Dependencies are inferred from the claim text.