SRAM chip address pin line short-circuit detection method
A short-circuit detection and pin technology, applied in static memory, instruments, etc., can solve the problem of fast and accurate detection and positioning of short-circuit faults of SRAM chip address pins, and achieve fast detection speed, accurate detection speed, and improved detection efficiency. Effect
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[0019] The specific implementation will be described below in conjunction with the accompanying drawings.
[0020] Such as figure 1 As shown, the SRAM chip address pin line short circuit detection method in the present embodiment comprises the steps:
[0021] Step S1: According to the arrangement characteristics of the address pins of the SRAM chip, list the pin groups to be checked that may be short-circuited between the address pins. The SRAM chip in this embodiment is as figure 2 As shown, the SRAM chip has 20 address pins, and their net mark numbers are A1-A20. Since the chip is mostly quadrilateral, in the chip layout design, all the address pins may not be closely adjacent to each other, but arranged on different sides of the chip, or separated by other pins, only the corresponding address pins Short soldering may occur between two adjacent address pins. Therefore, based on figure 1 The layout of the address pins in the SRAM chip, the 20 address pins are distribute...
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