# US 2013/0153285 A1 · Magnetic field shielding raised floor panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153285 A1 - Document ID: US20130153285A1 - Status: Published application - Kind: A1 - Application number: 13/328,543 - Filed: 2011-12-16 - Published: 2013-06-20 - Earliest claimed: 2011-12-16 - Assignees: Taiwan Semiconductor Manufacturing Company, Ltd. - Inventors: Chwen YU; Yung-Ti HUNG; Kuo-An YEH; Tzu-Sou CHUANG; Chien-Teh HUANG - Web page: https://patentgrep.com/patent/US20130153285A1 ## CPC - H05K 9/0003: {Shielded walls, floors, ceilings, e.g. wallpaper, wall panel, electro-conductive plaster, concrete, cement, mortar} - H05K 9/0075: {Magnetic shielding materials} - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A magnetic field shielding raised floor panel having a plurality of grain-oriented electrical steel (GOES) sections. The orientation of each GOES section is parallel to a top surface of the section. The plurality of GOES sections can include sidewall and lip portions. The plurality of GOES sections can be perforated to permit air flow through the GOES section. Openings in adjacent perforated GOES sections do not substantially overlap. ## Claims ### Claim 1 A magnetic field shielding raised floor panel comprising: a stacked plurality of grain-oriented electrical steel (GOES) sections between a magnetic field generating element and a device sensitive to magnetic fields, wherein a grain orientation of each GOES section is parallel to a top surface of the GOES section. ### Claim 2 (depends on 1) The magnetic field shielding raised floor panel of claim 1, wherein the magnetic field shielding raised floor panel is positioned on top of a riser configured to elevate a top surface of the stacked plurality of GOES sections above a structural level. ### Claim 3 (depends on 1) The magnetic field shielding raised floor panel of claim 1 wherein at least one of the stacked plurality of GOES sections further comprises at least one sidewall extending orthogonal to the top surface toward the structural level. ### Claim 4 (depends on 3) The magnetic field shielding raised floor panel of claim 3, wherein the sidewall extends a distance of about 3 cm to about 5 cm orthogonal to the top surface. ### Claim 5 (depends on 3) The magnetic field shielding raised floor panel of claim 3, wherein at least one of the stacked plurality of GOES sections further comprises at least one lip portion extending parallel to the top surface from an end of the sidewall nearest the structural level. ### Claim 6 (depends on 5) The magnetic field shielding raised floor panel of claim 5, wherein the lip portion extends a distance of about 3 cm to about 5 cm parallel to the top surface. ### Claim 7 (depends on 1) The magnetic field shielding raised floor panel of claim 1 wherein each GOES section is about 0.2 mm to about 0.4 mm thick. ### Claim 8 (depends on 1) The magnetic field shielding raised floor panel of claim 1, wherein two of the stacked plurality of GOES sections have grain orientations orthogonal to each other. ### Claim 9 (depends on 2) The magnetic field shielding raised floor panel of claim 2, wherein each of the stacked plurality of GOES sections have a plurality of openings formed therethrough to provide ventilation between the structural level and the walking level. ### Claim 10 (depends on 1) The magnetic field shielding raised floor panel of claim 1, wherein the silicon content of the plurality of GOES sections is about 0.5% by weight to about 3.2% by weight. ### Claim 11 (depends on 2) The magnetic field shielding raised floor panel of claim 2, wherein the magnetic field shielding raised floor panel is positioned on the structural level so as to block magnetic fields generated by electrical currents between the walking level and the structural level. ### Claim 12 (depends on 2) The magnetic field shielding raised floor panel of claim 2, wherein the riser comprises aluminum. ### Claim 13 (depends on 1) The magnetic field shielding raised floor panel of claim 1, wherein a cover plate is positioned above the stacked plurality of GOES sections, wherein the cover plate comprises polyvinyl chloride. ### Claim 14 A raised floor comprising: a riser configured to elevate a walking level above a structural level; a cover positioned above the riser; and a magnetic field shielding raised floor panel comprising: a stacked plurality of grain-oriented electrical steel (GOES) sections interposed between the riser and the cover, wherein a grain orientation of each GOES section is parallel to a top surface of the GOES section, at least one of the stacked plurality of GOES sections further comprises at lest one sidewall extending orthogonal to the top surface toward the structural level, and at least one of the stacked plurality of GOES sections further comprises at least one lip portion extending parallel to the top surface from an end of the at least one sidewall nearest the structural level. ### Claim 15 (depends on 14) The magnetic field shielding raised floor panel of claim 14, wherein the lip portion contacts an adjacent magnetic field shielding raised floor panel. ### Claim 16 (depends on 14) The magnetic field shielding raised floor panel of claim 14, wherein a plurality of magnetic field shielding raised floor panels are arranged so as to block magnetic fields generated by electrical currents between the walking level and the structural level. ### Claim 17 A raised floor comprising: a riser configured to elevate a walking level above a structural level; a cover positioned above the riser; and a magnetic field shielding raised floor panel comprising: at least one first grain-oriented electrical steel (GOES) section interposed between the riser and the cover, wherein a grain orientation of each GOES section is parallel to a top surface of the GOES section, the cover and the stacked plurality of GOES sections formed with a plurality of through openings to provide ventilation between the structural level and the walking level, and the plurality of openings in a first GOES section do not substantially overlap with the plurality of openings in an adjacent second GOES section. ### Claim 18 (depends on 17) The raised floor of claim 17, further comprising at least one second GOES section under the riser, wherein the riser is between the at least one first GOES section and the at least one second GOES section. ### Claim 19 (depends on 18) The raised floor of claim 18, wherein the at least one first GOES section and the at least one second GOES section each have a plurality of openings formed therethrough to provide ventilation between the structural level and the walking level. ### Claim 20 (depends on 19) The raised floor of claim 19, wherein the plurality of openings have a diameter of about 220 mm to about 400 mm.