# US 9,437,943 B1 · Stacked symmetric printed circuit boards > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,437,943 B1 - Document ID: US9437943B1 - Status: Granted - Kind: B1 - Application number: 14/659,469 - Filed: 2015-03-16 - Granted: 2016-09-06 - Earliest claimed: 2015-03-16 - Assignees: Pure Storage, Inc. - Applicants: Pure Storage, Inc. - Inventors: John D. Davis - Web page: https://patentgrep.com/patent/US9437943B1 ## CPC - H05K 3/368: {parallel to each other (H05K3/361 takes precedence)} - H05K 1/144: {Stacked arrangements of planar printed circuit boards} - H05K 2201/042: Stacked spaced PCBs; Planar parts of folded flexible circuits having mounted components in between or spaced from each other - H05K 2201/09063: Holes or slots in insulating substrate not used for electrical connections - H05K 2201/10189: Non-printed connector - H05K 2201/2036: Permanent spacer or stand-off in a printed circuit or printed circuit assembly - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A printed circuit board (PCB) is provided. The PCB includes a connector extending from a surface of the PCB and a bypass feature extending through the PCB. The PCB is constructed so that a first copy of the PCB is configured to be assembled to a second copy of the PCB with the second copy rotated and/or flipped relative to the first copy. An electrical connection to the first copy is accessible via the connector of the first copy, and an electrical connection to the second copy is accessible via the connector of the second copy through the bypass feature of the first copy. ## Claims ### Claim 1 A printed circuit board (PCB), comprising: a connector extending from a surface of the PCB; and a bypass feature extending through the PCB, the PCB constructed so that a first copy of the PCB is configured to be assembled stacked to a second copy of the PCB with the first copy oriented as in an initial position of the PCB and the second copy rotated or flipped relative to the initial position of the PCB, the second copy not oriented same as the initial position of the PCB, wherein an electrical connection to the first copy is accessible via the connector of the first copy, and an electrical connection to the second copy is accessible via the connector of the second copy through the bypass feature of the first copy. ### Claim 2 (depends on 1) The printed circuit board of claim 1, wherein the bypass feature comprises at least one of a pass-through connector, a cutout, an aperture, or a notch. ### Claim 3 (depends on 1) The printed circuit board of claim 1, wherein the electrical connection of the first copy and the electrical connection of the second copy are coupled to a base PCB. ### Claim 4 (depends on 1) The printed circuit board of claim 1, wherein the PCB includes multiple bypass features extending through the PCB. ### Claim 5 (depends on 3) The printed circuit board of claim 3, wherein the base PCB has multiple connectors extending from a surface of the base PCB and wherein each of the multiple connectors have differing heights. ### Claim 6 (depends on 1) The printed circuit board of claim 1, wherein the first copy and the second copy are identical copies. ### Claim 7 (depends on 1) The printed circuit board of claim 1, wherein the connector and the bypass feature are integrated within a pass-through connector. ### Claim 8 A printed circuit board (PCB) assembly, comprising: a first PCB having a connector and a bypass feature, the first PCB being in a first position; a second PCB that is a copy of the first PCB, the second PCB rotated or flipped with respect to the first position of the first PCB, and so assembled stacked to the first PCB, with the second PCB not oriented same as the first position of the first PCB, wherein the connector of the second PCB extends through the bypass feature of the first PCB. ### Claim 9 (depends on 8) The printed circuit board assembly of claim 8, further comprising: a base PCB coupled to the first and second PCBs; a first connector of the base PCB coupled to the connector of the first PCB; and a second connector of the base PCB extending through the bypass feature of the first PCB and coupled to the connector of the second PCB. ### Claim 10 (depends on 8) The printed circuit board assembly of claim 8, further comprising: a third PCB that is a copy of the first PCB, rotated or flipped with respect to the first PCB and assembled to the second PCB, wherein the connector of the third PCB extends through the bypass feature of the second PCB and the bypass feature of the first PCB. ### Claim 11 (depends on 8) The printed circuit board assembly of claim 8, further comprising: a base PCB assembled to the first and second PCBs; and multiple additional PCBs rotated or flipped with respect to the first PCB, wherein the base PCB has a number of connectors extending from a surface of the base PCB equal to a number of PCBs assembled to the base. ### Claim 12 (depends on 8) The printed circuit board assembly of claim 8, wherein the connector and the bypass feature of each PCB are integrated within a pass through connector. ### Claim 13 (depends on 8) The printed circuit board assembly of claim 8, wherein the bypass feature of the first PCB and the second PCB includes an aperture located on a peripheral edge of the first PCB and the second PCB. ### Claim 14 (depends on 8) The printed circuit board assembly of claim 8, further comprising: a base PCB having a plurality of connectors arranged in a form of a polygon; a first one of the plurality of connectors coupled to the connector of the first PCB; and a second one of the plurality of connectors coupled to the connector of the second PCB via the bypass feature of the first PCB. ### Claim 15 A method of assembling a printed circuit board (PCB), comprising: providing a first PCB and a second PCB, the second PCB a copy of the first PCB; arranging a bypass feature of the first PCB so that an electrical connection to the second PCB proceeds through the bypass feature of the first PCB; assembling the first PCB, in a first position, stacked to the second PCB, with the second PCB one of rotated or flipped relative to the first position of the first PCB and not oriented same as the first position of the first PCB; and coupling an electrical connector of the first PCB and an electrical connector of the second PCB to a third PCB. ### Claim 16 (depends on 15) The method of claim 15, wherein the first PCB has multiple bypass features. ### Claim 17 (depends on 15) The method of claim 15, wherein the third PCB is a base PCB having a plurality of electrical connectors extending from a surface of the base PCB, each of the plurality of electrical connectors having a different height. ### Claim 18 (depends on 15) The method of claim 15, wherein the bypass feature includes at least one of a cutout, an aperture or a notch. ### Claim 19 (depends on 15) The method of claim 15, wherein each electrical connector is located on a peripheral edge of each PCB and each bypass feature is located on one of a same or an opposing peripheral edge of each PCB. ### Claim 20 (depends on 15) The method of claim 15, wherein each electrical connector and each bypass feature are integrated into a pass through connector for respective PCB.