ELECTRONIC COMPONENT

• US 20200136320A1
• Filed: 02/14/2018
• Published: 04/30/2020
• Est. Priority Date: 03/28/2017
• Status: Active Grant

• Current Assignee: Sony Mobile Communications Incorporated (Sony Group Corp.)
• Original Assignee: Sony Mobile Communications Incorporated (Sony Group Corp.)
• Inventors: FUJIMORI, Kotaro, KATO, Yoshihiro, YOSHIDA, Yuko
• Granted Patent: US 10,998,681 B2
• Time in Patent Office: Days
• CPC Class Codes: G06K 7/0021 for reading/sensing record carriers having surface contacts
• CPC Class Codes: H01R 13/5213 Covers
• CPC Class Codes: H01R 13/6485 Electrostatic discharge protection in general H05F1/00, for electric apparatus H05K9/0067
• CPC Class Codes: H01R 13/6594 the shield being mounted on a PCB and connected to conductive members
• CPC Class Codes: H05K 1/18 Printed circuits structurally associated with non-printed electric components H05K1/0201, H05K1/023, H05K1/0243, and H05K1/16 take precedence
• CPC Class Codes: H05K 2201/10189 Non-printed connector
• CPC Class Codes: H05K 5/0026 provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
• CPC Class Codes: H05K 5/0286 Receptacles therefor, e.g. card slots, module sockets, card groundings

Abstract

An electronic member provided in a circuit board having a connector. The connector has a card mounting port and holds a memory card in a state where a tip of the memory card is exposed from the card mounting port at a connection position where a connection terminal of the memory card and a connection terminal of the circuit board are connected. The electronic component includes a device that adds capacitance at a position separated from and facing at least a part of the tip of the memory card, in a state where the memory card is held at the connection position by the connector, and a connector having first and second end portions in which the first end portion is connected to the device that adds capacitance and the second end portion is connected to a ground of the circuit board.

Claims

1. An electronic component provided in a circuit board having a connector, wherein

the connector has a card mounting port and can hold a memory card in a state where a tip of the memory card is exposed from the card mounting port at a connection position where a connection terminal of the memory card and a connection terminal of the circuit board are connected, and

the electronic component comprises

a capacitance addition unit provided at a position separated from and facing at least a part of the tip of the memory card, in a plan view with respect to at least one surface of the memory card, in a state where the memory card is held at the connection position by the connector, and

a connection unit having first and second end portions in which the first end portion is connected to the capacitance addition unit and the second end portion is connected to a ground of the circuit board.

2. The electronic component according to claim 1, wherein the capacitance addition unit is provided along the tip of the memory card, in a state where the memory card is held at the connection position by the connector.

3. The electronic component according to claim 2, wherein the capacitance addition unit has a closed cross-sectional shape surrounding the tip of the memory card in a cross-sectional view orthogonal to an insertion/removal direction of the memory card at the tip of the memory card, in a state where the memory card is held at the connection position by the connector.

4. The electronic component according to claim 1, wherein the capacitance addition unit is provided to face a portion of the memory card from the card mounting port to the tip of the memory card, in a state where the memory card is held at the connection position by the connector.

5. The electronic component according to claim 1, wherein the capacitance addition unit includes a conductor portion having an opening provided in an insertion/removal direction of the memory card from the card mounting port, in a casing accommodating the circuit board.

6. The electronic component according to claim 1, wherein the capacitance addition unit includes a conductor portion disposed along an inner circumferential end face of an opening provided in an insertion/removal direction of the memory card from the card mounting port, in a casing of a dielectric accommodating the circuit board.

7. The electronic component according to claim 6, wherein the conductor portion includes a part of an antenna fixed to the casing accommodating the circuit board.

8. The electronic component according to claim 1, wherein the capacitance addition unit includes at least one of a dielectric or a magnetic body at the side of the card mounting port in a cross-sectional view orthogonal to an insertion/removal direction of the memory card.

9. The electronic component according to claim 1, wherein the capacitance addition unit includes a lid of a conductor at the side where the memory card is exposed from the card mounting port in a state where the memory card is held at the connection position by the connector.

10. The electronic component according to claim 1, wherein

a pair of the connection units is connected to the capacitance addition unit, and

the pair of connection units is electrically connected via the capacitance addition unit.

11. The electronic component according to claim 1, wherein

a receptacle connected to the ground of the circuit board is disposed in the circuit board, and

the second end portion of the connection unit is removably provided in the receptacle.

12. The electronic component according to claim 1, wherein at least a part of the connection unit includes a conductive extendable member.

13. The electronic component according to claim 1, wherein the connection unit is connected to the ground of the circuit board via an adjustment circuit including at least one of a distributed constant circuit or a lumped constant circuit, at the side of the second end portion.