Sog with moisture-resistant protective capping layer
CA 2017720 C · Owner: Zarlink Semiconductor Inc. · Inventors: Ouellet, Luc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of applying spin-on glass (SOG) on a substrate over low-melting point, non-refractory materials such as aluminum is disclosed. In the method a layer of applied spin-on glass is subjected to disconnection and outgassing of water and reaction by-products, and then capped with a protective dielectric layer resistant to moisture diffusion.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 29, 1990 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.