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Disclosed is a piston reset apparatus for a multichip module that includes a base with multiple projections and two unit associating pegs extending from opposite ends of the base, a hat disposed upwardly of the base and including multiple adjustable pistons vertically adjustable within the hat, each

Disclosed is a piston reset apparatus for a multichip module that includes a base with multiple projections and two unit associating pegs extending from opposite ends of the base, a hat disposed upwardly of the base and including multiple adjustable pistons vertically adjustable within the hat, each of the plurality of adjustable pistons being disposed in alignment with one of the multiple projections, a mass equivalent plate disposed upwardly of the hat and being configured to hold a spring loaded sleeve, the spring loaded sleeve including a plurality of springs, each of the springs being aligned with and configured to apply pressure upon one of the multiple pistons, a spring loaded clamp disposed upwardly of the plate and including a spring loaded portion and a retaining portion, the retaining portion defining two cavities configured to fixedly associate with an associating groove defined by each of the unit associating pegs.

대표청구항 ▼

What is claimed is: 1. A method for resetting pistons in a multichip module, the method comprising: providing a base including a plurality of projections; disposing a hat upwardly of said base, said hat including a plurality of pistons that are positionally fixed in said hat and a plurality of adju

What is claimed is: 1. A method for resetting pistons in a multichip module, the method comprising: providing a base including a plurality of projections; disposing a hat upwardly of said base, said hat including a plurality of pistons that are positionally fixed in said hat and a plurality of adjustable pistons that are vertically adjustable within said hat in a direction towards said base; aligning each of said plurality of adjustable pistons with one of said plurality of projections; holding a spring loaded sleeve having a plurality of springs with a mass equivalent plate and disposing said spring loaded sleeve and said mass equivalent plate upwardly adjacent of said hat; aligning each spring of said spring loaded sleeve with one of said plurality of adjustable pistons; clamping said base, said hat, said spring loaded sleeve, and said mass equivalent plate together via a spring loaded clamp; subjecting a temporary assembly of said hat, said mass equivalent plate, said base, said spring loaded sleeve, and said clamp to a furnace reflow operation; causing said springs of said spring loaded sleeve to apply a pressure to each of said adjustable pistons via said subjecting; and resetting said adjustable pistons to their original positions via said pressure.