Resources Contact Us Home
Apparatus for mounting a flat package type IC

Image Number 6 for United States Patent #5068588.

An apparatus for mounting a flat package type IC on a printed circuit board is disclosed. The apparatus includes: a robot hand for holding the IC; cameras each for taking an image of a part of the IC taking an image of a part of the board, which cameras are fixed to the hand and arranged symmetrically with respect to the rotation axis of the hand; a first processor for obtaining linear deviation and rotational deviation of leads from the images of the IC, and for obtaining linear deviations and rotational deviation of lands from the images of the board; a second processor for obtaining a linear difference between the linear deviations of the IC and board, and for obtaining a rotational difference between the rotational deviations of the IC and board; and a driver for adjusting the position of the IC, by linearly moving the hand by the linear difference, and by rotating the hand by the rotational difference, thereby correctly positioning the leads on the corresponding lands.

  Recently Added Patents
Stereoscopic display
Method of operating an electromechanical converter, a controller and a computer program product
Coordinated multi-point transmission in a cellular network
Architecture and method for multi-aspect touchscreen scanning
Serial transmission system including transmitter apparatus and receiver apparatus, for use in transmission of AV data
Light fitting
Semiconductor unit having a power semiconductor and semiconductor apparatus using the same
  Randomly Featured Patents
Transportable weatherproof battery power supply and storage for electronic equipment
Precise tone signal generator
Non-woven textile
Friction-wear aluminum part and associated method
Trisazo dye, and aqueous ink composition containing the same
Method and apparatus for monitoring the sedation level of a sedated patient
Process for the production of higher oxo alcohols
Mixing tap
Semiconductor device fabrication equipment for performing PEOX process and method including cleaning the equipment with remotely produced plasma
Method of noise reduction based on dynamic aspects of speech