High bandwidth passive switching current sensor
US8618814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | May 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/30107
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
In an printed circuit board on which an integrated circuit die is mounted, an array of plated through holes (PTHs) are formed which include conductive power and ground PTH structures which are connected to provide power and ground reference voltages to the integrated circuit die, and isolated current sensing PTH structures which are formed within sensing proximity to the conductive power and ground PTH structures for sensing current switching activity in the conductive power and ground PTH structures by inductively converting dynamic current changes in the conductive power and ground PTH structures into a measurable voltage signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.