Series resistance in transmission lines for die-to-die communication
US10643676B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2018 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Sep 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/73265
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus may include a controller die and a group of dies that communicate with each other via a transmission line. The transmission line includes a first portion integrated with a printed circuit board, and a second portion that includes a plurality of wire bonds bonded to input/output pads of the group of dies. The transmission line further includes a resistor circuit connected in series with the first portion and the second portion. The resistor circuit has a resistance value that provides reduced reflection coefficients over the transmission line between the first portion and the second portion. An on-die termination resistor circuit on the controller side is removed, with the inclusion of the resistor circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.