Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1988-04-11
1990-04-17
Pellinen, A. D.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
174 163, 357 81, 361388, H05K 720
Patent
active
049185713
ABSTRACT:
The invention is directed to a socketable chip carrier (2) for use with integrated circuits (22) having large lead counts. Due to the large lead counts, many leads may switch simultaneously, resulting in an instantaneous requirement for a great deal of power. The steady power supplies required for proper operation of the integrated circuits (22) cannot accommodate this requirement for increased power. Consequently, energy storage means (38) are provided in openings proximate the integrated circuit (22) to insure that an adequate power supply is maintained during switching. These energy storage means (38), such as capacitors (38) and/or batteries, supply the power required during the simultaneous switching. The capacitors (38) and/or batteries are electrically connected to the integrated circuit (22) by conductors (66) on a printed circuit (56). This type of configuration eliminates undesirable properties such as high resistance and inductance which can result in unwanted voltage drops and time delays respectively.
REFERENCES:
patent: 4105807 (1978-08-01), Arora
patent: 4268102 (1981-05-01), Grabbe
patent: 4349238 (1982-09-01), Showman et al.
patent: 4396935 (1983-08-01), Schuck
patent: 4647959 (1987-03-01), Smith
Patent Abstracts of Japan, vol. 8, 95 (E-242) (1532), 2 May 1984.
Atkinson et al., "Pluggable Storage Modules", IBM Technical Disclosure Bulletin, vol. 15, No. 11, Apr. 73, pp. 3408-3409.
"AMP Interconnecting Ideas"-pamphlet by AMP Incorporated.
Terminator-"Low Height Chip Carrier Socket: A Microelectronic Masterpiece", a booklet by AMP Incorporated.
"A Premolded Chip Carrier with Compliant Leads" by Dimitry Grabbe, AMP Incorporated, presented to Nepcon '77.
AMP Incorporated
Pellinen A. D.
Thompson Gregory D.
Wolstoncroft Bruce J.
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