Weakening wire supplied through a wire bonder
CA 2071219 A1 · Owner: Gliga, Alexandru S. · Inventors: Gliga, Alexandru S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A technique for weakening an interconnection wire provided on a contact on an electronic component in which, the wire is weakened by means of an arc which is created between the wire and an electrode provided in an aperture in the wall of the bonding head of the wire bonder through which the wire is supplied, the arc being generated by an electric field between the wire and the electrode. The electric field has a second portion in which its polarity is reversed for, controlling the dispersion of charged particles emitted from the wirer The electric field may be created by an arc generator which includes a capacitor which discharges through a transformer.
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 December 7, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 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.