Resources Contact Us Home
Testing board for semiconductor memory, method of testing semiconductor memory and method of manufacturing semiconductor memory

Image Number 4 for United States Patent #7225372.

A testing circuit using ALPG is mounted in a testing board in which sockets for mounting semiconductor memories as devices to be tested in the board is mounted and a volatile memory for storing a data table for generating a random pattern is provided in the testing circuit so that a test using a test pattern having no regularity is performed using the data table in addition to a test using a test pattern having regularity generated by the ALPG.

  Recently Added Patents
Fabric-backplane enterprise servers with pluggable I/O sub-system
Asymmetric switching rectifier
Rupture resistant system
Method and system for expanding axial coverage in iterative reconstruction in computer tomography (CT)
Managing multiple web services on a single device
Packaging sleeve
O-space imaging: highly efficient parallel imaging using complementary nonlinear encoding gradient fields and receive coil geometries
  Randomly Featured Patents
Continuous preparation of polymers and apparatus for this purpose
Method and apparatus for managing messaging identities
Portable type audio-visual sensory apparatus
Welding wire package
Semiconductor device and method for fabricating the same, memory core chip and memory peripheral circuit chip
Superconducting circuit
Apparatus for rotational molding
Method and apparatus for stirring molten metal
Heat-sensitive transfer image-forming method
Wheel hub