| 摘要 |
PURPOSE:To simplify the reading of lot numbers and to change freely the loading position of an electronic circuit package by storing the lot numbers and also packing the parts that can be electrically read out into the electronic circuit package. CONSTITUTION:An electronic circuit package 1 contains the electronic parts 2 including an IC, etc., a semi-fixed memory circuit 4 which stores the lot numbers, and a signal selecting circuit 3. A device 77 contains many packages 1. When a controller 8 executes a reading instruction for lot numbers, the contents of the circuit 4 are selected by the circuit 3 and the stored lot numbers are read by the controller 8 via an electric connection part 5 and a cable 6. These lot numbers are outputted to a printer 9. The second reading is extremely easy even in case the loading position of the package 1 is changed. Thus the lot control of the package 1 is simplified.
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