SHIELDING DEVICE
First Claim
1. A method for manufacturing a shielding device including a wall and a cover connected to an upper end of the wall, the method comprising:
- injecting a moldable material, including a dispersed plurality of particles of a magnetically attractable material, into a cavity of a mold tool;
forming a magnetic field through the mold tool to cause the particles to be concentrated into strings extending through the moldable material within the cavity of the mold tool; and
solidifying the moldable material to form a resilient molded wall in which the particle strings are fixated extending from a lower wall to the upper end of the molded wall.
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Accused Products
Abstract
A shielding device configured to provide EMI or ESD protection to an electronic component (80) comprises a cover (83), and a wall (10) of a resilient material. By molding the resilient material under the influence of a magnetic field provided by a number of separate magnets, a dispersed plurality of magnetically attractable particles in the material are concentrated in strings (11) extending between a lower (12) and upper (13) end of the wall. The cover is attached to connect to the strings affixed in the solidified wall at the upper end of the wall, and at the lower end of the wall the strings are placed in contact with a ground trace (82) formed around the component to be shielded, thereby forming a Faraday cage about the component.
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Citations
13 Claims
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1. A method for manufacturing a shielding device including a wall and a cover connected to an upper end of the wall, the method comprising:
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injecting a moldable material, including a dispersed plurality of particles of a magnetically attractable material, into a cavity of a mold tool; forming a magnetic field through the mold tool to cause the particles to be concentrated into strings extending through the moldable material within the cavity of the mold tool; and solidifying the moldable material to form a resilient molded wall in which the particle strings are fixated extending from a lower wall to the upper end of the molded wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for shielding a component, the method comprising:
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providing a wall of a resilient moldable material, the wall having a lower end and an upper end, and the wall encloses a plurality of particles of a magnetically attractable material that are concentrated in strings extending from the lower end to the upper end of the wall; providing a cover having an electrically conductive layer, the cover connected to the particle strings at the upper end of the wall; placing the wall on a carrier surface on which a component is attached, and so that a ground portion on the carrier surface is connected to the particle strings at the lower end of the wall. - View Dependent Claims (10, 11, 12, 13)
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Specification