Shielded EHF connector assemblies

• US 9,853,746 B2
• Filed: 04/26/2016
• Issued: 12/26/2017
• Est. Priority Date: 01/30/2012
• Status: Active Grant

• Current Assignee: Molex LLC (KOCH Industries Incorporated)
• Original Assignee: Keyssa, Inc.
• Inventors: McCormack, Gary D., Isaac, Roger D.
• Primary Examiner(s): AKINYEMI, AJIBOLA A
• Application Number:
  US15/139,145
• Publication Number:
  US 20160241347A1
• Time in Patent Office: 609 Days
• Field of Search: 455 6711
• CPC Class Codes: H01L 2223/6677 for antenna, e.g. antenna included within housing of semiconductor device antennas per se H01Q
• CPC Class Codes: H01L 2224/16225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/16245 the item being metallic
• CPC Class Codes: H01L 2224/32225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/32245 the item being metallic
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/48227 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2224/48247 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2224/73265 Layer and wire connectors
• CPC Class Codes: H01L 24/73 Means for bonding being of different types provided for in two or more of groups H01L24/10, H01L24/18, H01L24/26, H01L24/34, H01L24/42, H01L24/50, H01L24/63, H01L24/71
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00012 Relevant to the scope of the group, the symbol of which is combined with the symbol of this group
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/15311 being a ball array, e.g. BGA
• CPC Class Codes: H01L 2924/181 Encapsulation
• CPC Class Codes: H01L 2924/3011 Impedance
• CPC Class Codes: H01L 2924/3025 Electromagnetic shielding
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 4/80 : Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

Shielded extremely high frequency (EHF) connector assemblies are disclosed herein. In some embodiments, a first extremely high frequency (EHF) shielded connector assembly configured to be coupled with a second EHF shielded connector assembly. The first EHF connector assembly can include a first EHF communication unit operative to contactlessly communicate EHF signals with a second EHF communication unit included in the second EHF shielded connector assembly. The first connector can include a connector interface that includes a configuration to interface with a respective connector interface of the second EHF shield connector assembly, and several different material compositions that, in conjunction with the configuration, provide shielding to prevent or substantially reduce EHF signal leakage when the first EHF assembly connector is coupled to the second EHF assembly connector and the first EHF communication unit is contactlessly communicating EHF signals with the second EHF communication unit.

Claims

1. A method for verifying an electromagnetic shield is effective before commencing contactless communications between coupled pairs of contactless communication units associated with first and second devices, the method comprising:

transmitting a first unmodulated signal to the second device;

receiving a second unmodulated signal from the second device;

determining whether the second unmodulated signal exceeds a signal threshold, wherein receipt of the second unmodulated signal exceeding the signal threshold indicates that the electromagnetic shield is effective in preventing modulated contactless signals from emanating substantially beyond the electromagnetic shield; and

transmitting a first modulated contactless signal to the second device in response to determining that the second unmodulated signal exceeds the signal threshold.

2. The method of claim 1, further comprising transmitting a coded signal to the second device in response to determining that the second unmodulated signal exceeds the signal threshold.

3. The method of claim 2 wherein the coded signal comprises an unlock code.

4. The method of claim 2 wherein the coded signal comprises a qualification pattern.

5. The method of claim 2, further comprising:

receiving, from the second device, a confirmation that the coded signal satisfied predefined criteria, the confirmation received as a second modulated signal;

wherein the transmitting the first modulated signal to the second device is performed in response to determining that the second unmodulated signal exceeds the signal threshold and that the second modulated signal is received.

6. The method of claim 5, further comprising providing a notice that the first modulated signal is being transmitted.

7. The method of claim 5, further comprising ceasing the transmitting of the first modulated signal when the second modulated signal is not being received by the first device.

8. The method of claim 1, wherein the modulated contactless signals are unlicensed signals that are substantially contained by the electromagnetic shield.

9. The method of claim 1, further comprising providing a notice when the second unmodulated signal does not exceed the signal threshold.

10. A method comprising:

receiving a first unmodulated contactless signal characterized by a relatively low frequency rate that results in a relatively low-level of electromagnetic emissions;

determining whether the received first unmodulated contactless signal exceeds a signal threshold, wherein the first unmodulated contactless signal exceeding the signal threshold indicates that an electromagnetic shield is effective in preventing modulated contactless signals from emanating substantially beyond the electromagnetic shield;

transmitting a second unmodulated contactless signal in response to determining that the received first unmodulated signal exceeds the signal threshold

receiving a coded signal after the second unmodulated contactless signal has been transmitted;

verifying the received coded signal; and

transmitting a first modulated signal after the received coded signal is verified.

11. The method of claim 10, further comprising:

receiving a second modulated signal;

determining whether the received second modulated contactless signal exceeds a modulated signal threshold, wherein continued receipt of the second modulated contactless indicates that the electromagnetic shield is effective in preventing modulated contactless signals from emanating substantially beyond the electromagnetic shield;

continuing to transmit the first modulated signal if the received second modulated contactless signal exceeds the modulated signal threshold; and

ceasing to transmit the first modulated signal if the received second modulated contactless signal does not exceed the modulated signal threshold.

12. The method of claim 10, wherein the coded signal comprises an unlock code and a qualification pattern.

13. The method of claim 12 further comprising:

verifying the unlock code;

verifying the qualification pattern; and

transmitting the first modulated contactless signal in response to determining that the unlock code and the qualification pattern are verified.

14. The method of claim 12 further comprising:

verifying the unlock code;

verifying the qualification pattern; and

providing a notice in response to determining that at least one of the unlock code and the qualification pattern failed verification.

15. The method of claim 10, wherein the coded signal comprises an unlock code, the method further comprising:

verifying the unlock code; and

transmitting the first modulated contactless signal in response to determining that the unlock code is verified.

16. A first device that verifies an electromagnetic shield is effective before commencing contactless communications between coupled pairs of contactless communication units associated with the first device and a second device, the first device comprising:

contactless communications circuitry operative to;

transmit a first unmodulated signal to the second device;

receive a second unmodulated signal from the second device;

determine whether the second unmodulated signal exceeds a signal threshold, wherein receipt of a second unmodulated signal that exceeds the signal threshold indicates that the electromagnetic shield is effective in preventing modulated contactless signals from emanating substantially beyond the electromagnetic shield; and

transmit a first modulated contactless signal to the second device in response to determining that the second unmodulated signal exceeds the signal threshold.

17. The first device of claim 16, wherein the contactless communications circuitry is further operative to transmit a coded signal to the second device in response to determining that the second unmodulated signal exceeds the signal threshold.

18. The first device of claim 17, wherein the coded signal comprises an unlock code.

19. The first device of claim 17, wherein the contactless communications circuitry is further operative to:

receive, from the second device, a confirmation that the coded signal satisfied predefined criteria, the confirmation received as a second modulated signal; and

wherein the transmission of the first modulated signal to the second device is performed in response to a determination that the second unmodulated signal exceeds the signal threshold and that the second modulated signal is received.

20. The first device of claim 19 wherein the contactless communications circuitry is further operative to:

cease the transmitting of the first modulated signal when the second modulated signal is not being received by the first device.

21. The first device of claim 16, further comprising:

a connector interface comprising a plurality of material compositions that, in conjunction with the configuration, provides shielding to reduce electromagnetic signal leakage when the first device is coupled to the second device and the first device is contactlessly communicating electromagnetic signals with the second device.