Patent ID: 6168971
Filing Date: 2001-01-02
Classification: B23K,H01L,H05K,Y02P

Abstract:
A method of assembling multiple components to a substrate, each of said components having a first surface, a second surface opposite to the first surface, and a set of bonding pads disposed on the component's first surface, the substrate having a first surface, a second surface opposite to the first surface, and two or more sets of bonding pads disposed on the substrate's first surface, each set of the substrate's bonding pads for mating with a corresponding set of bonding pads of a component, said method comprising: providing an alignment plate having a first alignment mark for a first component and a second alignment mark for a second component; aligning the first component to the first alignment mark with the second surface of the first component disposed against the alignment plate; aligning the second component to the second alignment mark with the second surface of the second component disposed against the alignment plate; substantially simultaneously aligning the substrate to the first and second components by the steps of viewing the first surfaces of the substrate and at least one of the components simultaneously and aligning the sets of bonding pads on the substrate to corresponding sets of bonding pads on the components by moving the substrate and the alignment plate relative to one another while viewing the first surfaces of the substrate and the at least one component; and electrically connecting the bonding pads of the first component to the corresponding bonding pads of the substrate and electrically connecting the bonding pads of the second component to the corresponding bonding pads of the substrate.