Method of manufacturing an integrated inductor with protections caps on conductive lines
US10748810B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2018 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | May 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/163
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A method for forming a semiconductor device structure is provided. The method includes forming a first conductive line over a substrate. The method includes forming a first protection cap over a first portion of the first conductive line. The first protection cap and the first conductive line are made of different conductive materials. The method includes forming a first photosensitive dielectric layer over the substrate, the first conductive line, and the first protection cap. The method includes forming a first opening in the first photosensitive dielectric layer and over the first protection cap. The method includes forming a conductive via structure and a second conductive line over the first conductive line. The conductive via structure is in the first opening and over the first protection cap, and the second conductive line is over the conductive via structure and the first photosensitive dielectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.