Stacked memory for flight recorders

Details Stacked memory for flight recorders Stacked memory for flight recorders

1998-09-23

1999-10-19

Feild, Lynn D.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361803, 361804, 439 69, 439 761, 439 91, 206305, 206521, H01R 909, H01R 458, H05K 714, B65D 8102

Patent

active

059699531

ABSTRACT:
A stacked memory module having alternating layers of printed circuit boards and spacers. Connections between a given circuit board surface and an adjacent (facing) stacked printed circuit board surface, are made using at least one conductive pad incorporated into the electrical circuitry printed on and within the perimeter of each of the adjacent pair of board surfaces; together with means for interconnecting these conductive pads. The spacers can, for example, take the form of standoffs, spacer boards provided with clearance cutouts for components on the printed circuit boards, etc. The printed circuit boards and spacers are then aligned and fastened together using, for example, one or more alignment rods. According to a preferred embodiment of the invention, the fastened assembly is placed in a hollow memory module housing (e.g., a metal cylinder) to complete the fabrication of the memory module. Other aspects of the invention are directed to flight recorders per se which incorporate the above described memory module; and to processes for fabricating both the above described memory module and flight recorders containing such memory modules.

REFERENCES:
patent: 4944401 (1990-07-01), Groenewegen
patent: 4991000 (1991-02-01), Bone et al.
patent: 5032896 (1991-07-01), Little et al.
patent: 5150279 (1992-09-01), Collins et al.
patent: 5301089 (1994-04-01), Takashima
patent: 5390083 (1995-02-01), Decker et al.
patent: 5706180 (1998-01-01), Lacroix et al.

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