Resources Contact Us Home
Inspection method and inspection apparatus

Image Number 18 for United States Patent #6850080.

There is established an easier inspection method with which it is not required to set up probes on wires. Also, there is provided an inspection apparatus using this inspection method. With the inspection apparatus or inspection method, primary coils of an inspection substrate and secondary coils of a device substrate are superimposed on each other so that a certain space is maintained therebetween. An AC signal is inputted into the primary coils, thereby generating an electromotive force in each secondary coil by electromagnetic induction. Then, each circuit provided on the device substrate is driven using the electromotive force and information possessed by an electromagnetic wave or electric field generated in this circuit is monitored, thereby detecting each defective spot.

  Recently Added Patents
LED string with a capability to maintain a current path and LED unit thereof
Carrier for developing electrostatic charge image, developer for developing electrostatic charge image, image forming apparatus, and image forming method
Remote controller
Load control device
Multibranched polymer and method for producing the same
Apparatus and method for multiplying frequency of a clock signal
Lighting device with device for regulating the illumination according to the luminance of the illumination field and corresponding use
  Randomly Featured Patents
Art craft kit
Printed circuit board layout to minimize the clock delay caused by mismatch in length of metal lines and enhance the thermal performance of microeletronics packages via condution through the p
Means for routing ribbon type fiber optic cable
Electronic data interchange (EDI) data dictionary management and versioning system
Method and device for pulsed arc welding
Apparatus for cutting vegetation
Structure of a ball bump for wire bonding and the formation thereof
Liquid storage container, liquid ejecting device and liquid ejecting apparatus
Two stroke internal combustion engine having an intake piston adjacent each power piston
Apparatus and method for inspecting elliplicity and eccentricity of optical fiber preforms