This additional distributed capacitance
loads the via barrels, thereby decreasing the differential impedance and increasing the effective dielectric constant.
The voltage is the signal it is applying and the current is the current it sends into the signal conductor and back to the return conductor, each step of the way, to charge up each successive section of the distributed capacitance
of the line.
With this configuration, the distributed capacitance
can be accessed by dropping a single via (low inductance) down to the power plane.
It accounts for all coupling between the power, ground and signals on the chip, the distributed capacitance
associated with the power and ground systems, and on-chip decoupling capacitors connected to the power and ground systems.
3,519,959, the concept of embedded distributed capacitance
(closely-spaced power and ground planes for power supply &coupling) was disclosed.
Co is the intrinsic capacitance of the trace and Cd is the distributed capacitance
of the receivers, both per unit length.
QuickCap's capabilities include self capacitance, coupling capacitance, distributed capacitance
, Manhattan and non-Manhattan structures, exclusion of device capacitance, 2D and 3D calculations, and multiple conformal and planar dielectrics.
is the storage of energy between the power and ground layers by employing a dielectric.
Discussions were lively, especially around the patent situation for planar or distributed capacitance
The Low Pass Filter Array features the ability to filter four circuits with one package, providing distributed capacitance
, and shielded resistance.
Embedded distributed capacitance
as a concept has been around since the 1920s, and was not invented in the late 1980s as some believe.
For capacitors, not only was distributed capacitance
studied but also singulated (discrete) capacitors.