Arrangement for electronic circuit module

Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor

Patent

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Details

Other Related Categories

335185, 361398, 361413, 361424, 439485, 439620, H05K 720

Type

Patent

Status

active

Patent number

051013223

Description

ABSTRACT:
Electronic circuit modules (10; 100; 400) have connector (11; 111; 411) with through pins (14, 114; 414) and a metal ground path (17) embedded therein which fit within a recess (24; 124; 424) formed by a heat sink (18; 118; 418) having a central plate portion (19) surrounded by metallic cooling fins (23). A polyimide insulating circuit base film (26; 126; 500) has conductor paths (27) and circuit components (30) on at least a top surface (28) thereof with a bottom surface (31) mounted to the top surface (21) of the heat sink plate portion (19). The connector through pins are electrically connected to the conductor paths on the polyimide base film and a cover (33;133) together with the heat sink forms an internal cavity (34; 134) for protection of the components. This structure provides a compact configuration and lower manufacturing costs for a circuit module, permits reducing RF radiation and absorption problems and permits reducing resistive connections between the through pins and the components. Also implemented are high frequency bypass capacitive networks (18, 222; 118, 325) associated with each of the conductive through pins.

REFERENCES:
patent: 3702422 (1972-11-01), Schor
patent: 3790858 (1974-02-01), Brancaleone
patent: 3832603 (1974-08-01), Cray
patent: 4330812 (1982-05-01), Token
patent: 4507630 (1985-03-01), Wakino
patent: 4600256 (1986-07-01), Anttila
patent: 4617606 (1986-10-01), Shak et al.
patent: 4736266 (1988-04-01), Tanibe
patent: 4746893 (1988-05-01), Shak
patent: 4776214 (1988-10-01), Moran et al.
patent: 4811165 (1989-03-01), Currier et al.
patent: 4899256 (1990-02-01), Swan-Tin
Sheldahl, "Flexible Circuit Design Guide", Sheldahl Flexible Circuits, Advanced Interconnect products for electronic packaging, 1987, pp. 1,4,5,20.
"Electronic Packaging & Production", Sep. 1989, p. 45.
Photos and Photocopies of Zeta Module, Motorola 5141550T01, 2648 09G.

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