Patent ID: 9362606
Filing Date: 2016-06-07
CPC Classification: G06F,H01L,H01P,H03H

Claim Text:
1. A method, comprising: forming a first microstrip line structure comprising a ground plate within a back end of the line (BEOL) stack; and forming a second microstrip line structure comprising a signal line separated from the BEOL stack by a predetermined horizontal distance, wherein the ground plate is formed on a first vertical plane that runs through the BEOL stack and the signal line is formed on a second vertical plane that runs outside the confines of the BEOL stack, wherein a metal strip is formed below the ground plate and the signal line to further minimize insertion loss due to substrate coupling, wherein the metal strip intersects the first vertical plane and the second vertical plane, and a dielectric material is between and contacts both the signal line and a portion of the metal strip that intersects the second vertical plane, wherein layers of the BEOL stack are devoid of any gap between each layer of the BEOL stack, wherein the ground plate is formed as a part of a lower metallization layer in a portion of an oxide layer of the BEOL stack, and the signal line is formed in a portion of another oxide layer that is separated from the BEOL stack by the dielectric material, and wherein the oxide layer of the BEOL stack is different from the another oxide layer that is separated from the BEOL stack.