Patent · US Active

Single capacitor functioning as an RC filter

US10607986B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Lin Li · Shanghai, CN
Xiaoming Li · Irvine, US
Xianhui Dong · Beijing, CN
Weibing Jing · Beijing, CN

Key dates

Filing date	Mar 29, 2018
Grant date	Mar 31, 2020
Priority date	—
Expiry date	Mar 29, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH10D84/403
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

An IC includes an RC filter, a doped layer under a first dielectric layer, a polysilicon layer on the first dielectric layer providing a polysilicon plate for a capacitor of the filter, and gate(s) for MOSFET(s). A second dielectric layer is on the polysilicon plate. An input contact is on one end of the polysilicon plate and an output contact is on the opposite end. A metal layer includes metal providing contact to at least input contact and metal providing contact to the output contact. Analog circuitry includes the MOSFET having an I/O node coupled to the RC filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.