On-chip active decoupling capacitors for regulating voltage of an integrated circuit
US8427224B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2011 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Sep 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
On-chip active decoupling capacitors for regulating the voltage of an integrated circuit include a reference voltage generator, a latch-based comparator and switched DECAPs. The latched-based comparator is for comparing a reference voltage generated by the reference voltage generator and a supply voltage of the integrated circuit and outputting a comparison result. The switched DECAPs includes at least two capacitors and a plurality of switches, and coupling the at least two capacitors into a parallel configuration to sink current or a series configuration to source current based on the comparison result output by the latch-based comparator. The aforementioned on-chip active decoupling capacitors not only have lower power consumption, but also larger detection range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.