3740678 is referenced by 46 patents and cites 11 patents.

Strip transmission line structures which feature multilayer compositions with FEP (fluorinated ethylene propylene) Teflon* (Trademark, E. I. du Pont de Nemours & Co., Inc.) and Epoxy Glass (EG) as the dielectric materials. The fabrication with FEP material having substantially lower dielectric constant (Er) than commonly used Epoxy Glass enables the provision of high performance transmission lines of simplified construction with superior characteristics designed to meet the microminiaturization of current technological developments and adapted for use in present day computer systems. Retention of some Epoxy-Glass promotes fabrication without a major sacrifice in performance. The strip transmission lines having the more commonly used characteristic impedances (Zo) of 50 to 90 ohms are disclosed.

Strip transmission line structures
Application Number
Publication Number
Application Date
March 19, 1971
Publication Date
June 19, 1973
Hill Yates M
International Business Machines Corporation
H01p 03/08
H05K 01/00
H05K 03/42
H05K 03/46
H05K 01/02
H01P 03/08
View Original Source