Programmable electrical fuse with temperature gradient between anode and cathode
US8901702B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2013 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | May 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
In some examples, a programmable electrical fuse includes at least one structural feature that increases a thermal gradient between an anode and a cathode of the programmable electrical fuse. For example, a device may include a semiconductor substrate, an electrically insulating layer overlying the semiconductor substrate, and a programmable electrical fuse overlying a portion of the electrically insulating layer. The programmable electrical fuse may include a cathode, an anode, and a conductor link connecting the cathode and the anode. The electrically insulating layer may define a first thickness between the semiconductor substrate and the cathode and a second thickness between the semiconductor substrate and the anode, and the first thickness being less than the second thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.