| 摘要 |
An electrostatic shielding material sheet (10) for making a shipping box (12, 12a) to enclose and protect electronic components and/or assemblies-and the box itself-is characterized by different layers (14, 16, 18, 20) forming an electrostatic shielding material sheet (10), one layer (16) thereof being highly conductive with a surface resistivity of less than 1x104 Ohm/sq-preferably 102 to 103 Ohm/sq-and being allocated to electrostatic dissipative layers (14, 18) with a surface resistivity of between 1x105 Ohm/sq and 1x1012 Ohm/sq. The highly conductive layer (16) is sandwiched between electrostatic dissipative layers (14, 18) or embedded in one of the other layers (14, 18, 20). Additionally, the electrostatic shielding layer (16) shall contain highly conductive fibers.
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