# US 10,873,267 B2 · Three-phase switching unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,267 B2 - Document ID: US10873267B2 - Status: Granted - Kind: B2 - Application number: 15/855,288 - Filed: 2017-12-27 - Published: 2018-07-05 - Granted: 2020-12-22 - Earliest claimed: 2016-12-29 - Assignees: Commissariat A L'energie Atomique Et Aux Energies Alternatives - Applicants: Commissariat à l'Énergie Atomique et aux Énergies Alternatives - Inventors: Guillaume Lefevre - Web page: https://patentgrep.com/patent/US10873267B2 ## CPC - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - H02M 7/537: using semiconductor devices only, e.g. single switched pulse inverters - H05K 7/14329: {specially adapted for the configuration of power bus bars} - H10W 70/611: {for connecting multiple chips together} - H10W 70/65: Shapes or dispositions of interconnections - H10W 70/685: comprising multiple insulating layers - H10W 90/00: Package configurations - H10W 90/701: {characterised by the relative positions of pads or connectors relative to package parts} - H10W 70/68: Shapes or dispositions thereof - H10W 72/5445: {being orthogonal to a side surface of the chip, e.g. parallel arrangements} - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A three-phase switching unit including three identical switching cells, each including a first switch and a second switch electrically in series, including a substrate having: a first level receiving, on conductive areas, back sides of integrated circuits forming said switches; and at least one second level comprising conductive areas of interconnection of vias between the first and second levels, the conductive areas of the different levels respecting a symmetry of revolution of order 3. ## Claims ### Claim 1 A three-phase switching unit including three identical switching cells, each comprising a first switch and a second switch electrically in series, comprising a substrate having: a first level receiving, on conductive areas, back sides of integrated circuits forming said first switch and said second switch; and at least one second level comprising conductive areas of interconnection of vias between their first and second levels, the conductive areas of the different levels respecting a symmetry of revolution of order 3, wherein the first level comprises: three first conductive areas of reception of a back-side conduction terminal of at least one first switch of each cell; three second conductive areas of reception of wires of connection to a front-side conduction terminal of said first switch; a third central conductive area of reception of a back-side conduction terminal of the second switches of the three cells; and three fourth conductive areas of reception of wires of connection to a back-side conduction terminal of said second switches. ### Claim 2 (depends on 1) The unit of claim 1, wherein the second level comprises: three first conductive areas respectively vertically in line with the first switches; and at least one second conductive area vertically in line with the second switches. ### Claim 3 (depends on 1) The unit of claim 1, wherein the second level further comprises three third conductive areas, each connected by vias to a second and to a fourth conductive area of the first level. ### Claim 4 (depends on 1) The unit of claim 1, wherein said third conductive area of the first level is Y-shaped, each branch receiving one of said second switches. ### Claim 5 (depends on 1) The unit of claim 1, contained within a triangular shape. ### Claim 6 (depends on 1) The unit of claim 1, having a third level of its substrate, between the first and second levels, comprising: first conductive areas vertically in line with each first switch; and a second conductive area extending under the three second switches. ### Claim 7 (depends on 6) The unit of claim 6, having a fourth level of its substrate between the second and third levels, comprising: first conductive areas vertically in line with each first switch; and a second conductive area extending under the three second switches. ### Claim 8 (depends on 1) The unit of claim 1, wherein said first switch and said second switch are MOS transistors. ### Claim 9 (depends on 1) The unit of claim 1, wherein the substrate is a multilevel insulated metal substrate, preferably on ceramic. ### Claim 10 (depends on 1) The unit of claim 1, wherein the substrate is a multilevel printed circuit. ### Claim 11 (depends on 1) A three-phase current inverter, comprising two units of claim 1. ### Claim 12 (depends on 11) The inverter of claim 11, wherein the cells of the two units are electrically connected two by two, the interconnection nodes defining three phase terminals. ### Claim 13 A three-phase switching unit including three identical switching cells, each comprising a first switch and a second switch electrically in series, comprising a substrate having: a first level receiving, on conductive areas, back sides of integrated circuits forming said first switch and said second switch; and at least one second level comprising conductive areas of interconnection of vias between their first and second levels, the conductive areas of the different levels respecting a symmetry of revolution of order 3, wherein the first level comprises: three first conductive areas of reception of a back-side conduction terminal of at least one first switch of each cell; three second conductive areas of reception of wires of connection to a front-side conduction terminal of said first switch, and wherein the first conductive areas of the first level receive respective conduction terminals of the second switches, the first level further comprising three third conductive areas of reception of wires of connection to respective front-side conduction terminals of the second switches. ### Claim 14 (depends on 2, 13) The unit of claim 13 or claim 2, wherein the second conductive areas of the first level are each connected, by vias, to one of said first conductive areas of the second level. ### Claim 15 (depends on 13) The unit of claim 13, wherein said first conductive areas of the second level form a hexagonal ring. ### Claim 16 (depends on 13) The unit of claim 13, contained within a hexagonal shape.