Fixture design for pre-attachment package on package component assembly
First Claim
1. A surface mount technology (SMT) fixture comprising:
- a plurality of pockets sized to receive components, wherein each of the pockets includes at least one ear cut;
global fiducials located along a perimeter of the SMT fixture; and
sets of local fiducials, wherein each of the sets specific to one of the pockets.
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Accused Products
Abstract
Embodiments of the present invention relate to a fixture design for pre-attachment package on package component assembly. The fixture design includes a plurality of pockets arranged in a N×M array. The plurality of pockets is sized to receive bottom packages. The fixture design includes global fiducials that are used to locate positions of the pockets on the fixture, and sets of local fiducials, with each set being specific to one of the pockets and used to refine the position of the location of a corresponding pocket. Each of the pockets can include one or more ear cuts for easy component placement and component removal. The fixture design can include a vacuum port for coupling with a vacuum source for drawing a vacuum to hold the bottom packages down. The fixture design can also include a cover that is used with the fixture to keep the components from being disturbed.
69 Citations
19 Claims
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1. A surface mount technology (SMT) fixture comprising:
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a plurality of pockets sized to receive components, wherein each of the pockets includes at least one ear cut; global fiducials located along a perimeter of the SMT fixture; and sets of local fiducials, wherein each of the sets specific to one of the pockets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a surface mount technology (SMT) fixture comprising; a plurality of pockets are arrange in rows and columns; global fiducials located along a perimeter of the SMT fixture; sets of local fiducials, wherein each of the sets is specific to one of the pockets; and a plurality of ear cuts adjacent to each of the pockets; and a cover for coupling with the SMT. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A surface mount technology (SMT) fixture comprising:
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a plurality of pockets sized to receive components; global fiducials located along a perimeter of the SMT fixture; sets of local fiducials, wherein each of the sets specific to one of the pockets; and a vacuum port.
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Specification