Method for controlling ic handler and control system using the same
CA 2321868 C · Owner: Daytona Control Pte. Ltd. · Inventors: Kurihara, Mitsugu; Ohno, Tomonori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The pressing force, operation speed, and displacement of a test hand are properly controlled according to the type of IC and the type of socket. The method comprises sensing the load, acceleration or speed and push , displacement of the IC so as to compare the pressing force exerted on the IC (5) placed on a socket (2) by means of a pusher (8) of a test hand (1) with an allowable pressing force determined from the synthetic spring constant of the socket (2) and the IC (5), and controlling the movement of the test hand (1) according to the result of the comparison so as to keep the pressing force below the allowable pressing force.
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 28, 1999 and granted May 6, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 28, 2021.
- 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.