# US 2019/0174618 A1 · Printed Circuit Assembly with Vents and Electronic Device with the Assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174618 A1 - Document ID: US20190174618A1 - Status: Published application - Kind: A1 - Application number: 16/110,635 - Filed: 2018-08-23 - Published: 2019-06-06 - Earliest claimed: 2017-12-05 - Assignees: Giga-Byte Technology Co., Ltd. - Applicants: Giga-Byte Technology Co., Ltd. - Inventors: Hung-Cheng CHEN; Tse-Hsine LIAO - Web page: https://patentgrep.com/patent/US20190174618A1 ## CPC - H05K 1/0204: {using means for thermal conduction connection in the thickness direction of the substrate (H05K1/0207 takes precedence)} - G06F 1/185: Mounting of expansion boards - G06F 1/20: Cooling means - H01R 12/73: connecting to other rigid printed circuits or like structures - H01R 13/6215: {using one or more bolts} - H05K 1/0269: {for visual or optical inspection} - H05K 1/141: {One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters (H05K1/142 and H05K1/147 take precedence)} - H05K 1/0209: {External configuration of printed circuit board adapted for heat dissipation, e.g. lay-out of conductors, coatings} - H05K 1/0272: {Adaptations for fluid transport, e.g. channels, holes} - 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 2201/09072: Hole or recess under component or special relationship between hole and component - H05K 2201/10159: Memory - 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 - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract A printed circuit assembly includes a printed wiring board and an expansion connector. The printed wiring board has a top surface, a bottom surface, and a specific area defined at the top surface thereof for placement of an expansion card. In particular, the printed wiring board defines from top to bottom at least one thermal vent in the specific area for heat dissipation. The expansion connector is disposed on the printed wiring board and is located in the specific area for connection with one side edge of the expansion card. ## Claims ### Claim 1 A printed circuit assembly, comprising: a printed wiring board having a top surface, a bottom surface, a specific area defined at the top surface thereof for placement of an expansion card, and at least one thermal vent defined in the specific area and extending from the top surface to the bottom surface of the printed wiring board; and an expansion connector disposed on the printed wiring board and located in the specific area for connection with one side edge of the expansion card. ### Claim 2 (depends on 1) The printed circuit assembly as recited in claim 1, wherein the thermal vent represents a letter, a numeral, a symbol or a graphic design in shape. ### Claim 3 (depends on 1) The printed circuit assembly as recited in claim 1, further comprising a fastener disposed in the specific area on the printed wiring board for securing the other side edge of the expansion card. ### Claim 4 (depends on 3) The printed circuit assembly as recited in claim 3, wherein the fastener includes: a threaded standoff engaged in a screw hole defined in the printed wiring board for supporting the other side edge of the expansion card; and a bolt engaged in a screw hole of the threaded standoff for securing the other side edge of the expansion card onto the threaded standoff. ### Claim 5 (depends on 1) The printed circuit assembly as recited in claim 1, wherein the expansion connector is a M.2 connector. ### Claim 6 An electronic device, comprising: a printed wiring board having a top surface, a bottom surface, a specific area defined at the top surface thereof, and at least one thermal vent defined in the specific area and extending from the top surface to the bottom surface of the printed wiring board; an expansion connector disposed on the printed wiring board and located in the specific area; and an expansion card disposed in the specific area of the printed wiring board and having a side edge coupled to the expansion connector. ### Claim 7 (depends on 6) The electronic device as recited in claim 6, wherein the thermal vent represents a letter, a numeral, a symbol or a graphic design in shape. ### Claim 8 (depends on 6) The electronic device as recited in claim 6, further comprising a fastener disposed in the specific area on the printed wiring board for securing the other side edge of the expansion card. ### Claim 9 (depends on 8) The electronic device as recited in claim 8, wherein the fastener includes: a threaded standoff engaged in a screw hole defined in the printed wiring board for supporting the other side edge of the expansion card; and a bolt engaged in a screw hole of the threaded standoff for securing the other side edge of the expansion card onto the threaded standoff. ### Claim 10 (depends on 6) The electronic device as recited in claim 6, further comprising a metal plate on which the printed wiring board is mounted. ### Claim 11 (depends on 10) The electronic device as recited in claim 10, wherein the metal plate defines at least one through hole corresponding to the at least one thermal vent of the printed wiring board. ### Claim 12 (depends on 6) The electronic device as recited in claim 6, wherein the expansion connector is a M.2 connector, and the expansion card has at least one chip mounted on each of the top and bottom surfaces thereof.