| 摘要 |
PURPOSE:To keep a chip against static breakdown when an IC is carried and mounted, by equipping a package with a switch capable of shorting all leads or pins of the package. CONSTITUTION:A second-layered metal wiring 7, which shorts all PINs of a package 3 at their roots, is used for shorting all IC pins when the IC being carried and mounted on a device. Pressing a switch 8 enables the second-layered metal wiring 7 shorting PINs to come in contact with PINs 6 and short all the pins. Hence, with all the pins shorted, pin-capacity is extremely increased to suppress the transient response and reduce the peak voltage remarkably, and therefore the IC can be kept from static electricity. |
