Thin film delay lines having a serpentine delay path

Details Thin film delay lines having a serpentine delay path Thin film delay lines having a serpentine delay path

1988-04-11

1990-07-17

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

336200, H01P 900

Patent

active

049423738

ABSTRACT:
Multi-layered, thick/thin film, nanosecond delay lines, the inductive/capacitive characteristics of which are tailored to provide line impedances yielding unit delays of 1 to 10 nanoseconds. The delay lines are constructed on a supporting ceramic, resin/fiber or plastic substrate. In alternative embodiments, a serpentine conductive layer of tailored line widths and conductor spacings is sandwiched relative to overlying dielectric layers of 25 to 200 microns thickness and associated ground plane layers. In another embodiment, multiple conductor layers are sandwiched relative to intervening dielectric and ground plane layers. Lateral contact pads/pins, vertical vias and jumper conductors permit circuit connection and interconnection of the layers.

REFERENCES:
patent: 2832935 (1958-04-01), Tank
patent: 3005966 (1961-10-01), Strom
patent: 3257629 (1966-06-01), Kornreich
patent: 4203081 (1980-05-01), Braeckelmann
patent: 4626816 (1986-12-01), Blamkin
patent: 4641113 (1987-02-01), Ozawa
patent: 4641114 (1987-02-01), Person
Fonatsch, H. A. et al.; "Continuously Variable Electrical Delay Line"; IBM Technical Disclosure Bulletin; vol. 6, No. 1, Jun. 1963; pp. 64, 65.

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