摘要:
A method for processing semiconductor wafers includes forming a plurality of wafers each comprising a plurality of dies, performing a plurality of tests on the dies to determine good dies and failed dies, and packaging the good dies. The tests are performed on the good dies after packaging to determine good packaged dies and failed packaged dies. A determination is made as to which tests indicate both failed dies and failed packaged dies so that corrective action may be taken. A database is formed to include test data collected at wafer level on dies before they are packaged, and test data collected at package level after the good dies have been packaged. The database and the results of the test comparisons are made available via the Internet so that other facilities processing the same type devices can review and compare the information to their own data. A global or worldwide monitoring of the test data is thus made available.
摘要:
A method of obtaining information about the position and/or orientation of a magnetic component relatively to a magnetometric detector, the magnetic component and the magnetometric detector being moveable independently from each other relatively to a static secondary magnetic field, the method comprising the steps of: measuring in the presence of the combination of both the magnetic field of the magnetic component and the static secondary magnetic field essentially simultaneously the strength and/or orientation of a magnetic field at at least a first position and a second position spatially associated with the magnetometric detector, the second position being distanced from the first position; and combining the results of the measurements to computationally eliminate the effect of the secondary magnetic field and derive the information about the position and/or orientation of the magnetic component.
摘要:
A method of obtaining information about the position and/or orientation of a magnetic component relatively to a magnetometric detector, the magnetic component and the magnetometric detector being moveable independently from each other relatively to a static secondary magnetic field, the method comprising the steps of: measuring in the presence of the combination of both the magnetic field of the magnetic component and the static secondary magnetic field essentially simultaneously the strength and/or orientation of a magnetic field at at least a first position and a second position spatially associated with the magnetometric detector, the second position being distanced from the first position; and combining the results of the measurements to computationally eliminate the effect of the secondary magnetic field and derive the information about the position and/or orientation of the magnetic component.