Thin profile battery mounting contact for printed circuit boards

• US 6,077,106 A
• Filed: 06/05/1997
• Issued: 06/20/2000
• Est. Priority Date: 06/05/1997
• Status: Expired due to Term

• Current Assignee: Round Rock Research LLC
• Original Assignee: Micron Communications, Inc. (Micron Technology, Inc.)
• Inventors: Mish, William
• Primary Examiner(s): Abrams, Neil
• Assistant Examiner(s): NASRI, JAVAID H
• Application Number:
  US08/869,441
• Time in Patent Office: 1,111 Days
• Field of Search: 439/500, 439/68, 361/7.61, 429/100
• US Class Current: 439/500
• CPC Class Codes: G06K 19/0706 the battery being replaceable
• CPC Class Codes: G06K 19/077 Constructional details, e.g. mounting of circuits in the carrier
• CPC Class Codes: H01M 50/216 adapted for button or coin cells
• CPC Class Codes: H05K 1/182 associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery mounting contact consists of a substrate having a battery cavity for housing a battery therein. A first contact is attached to a first surface of the substrate and extends over the battery cavity substantially planarly adjacent to the substrate first surface. A second contact extends over the battery cavity substantially planarly adjacent to a second surface of the substrate. The battery, disposed within the battery cavity, makes electrical contact by its anode with the first contact and by its cathode with the second contact, or vis versa. The battery mounting contact significantly reduces the thickness of a battery powered device.

Claims

1. A battery mounting contact comprising:

a substrate having a battery cavity defined therein;

a substantially planar first contact attached to a first surface of said substrate and extending over said battery cavity substantially planarly adjacent to said substrate first surface; and

a substantially planar second contact extending over said battery cavity, said substantially planar second contact substantially planarly adjacent to a second surface of said substrate.

2. The battery mounting contact of claim 1, wherein said substantially planar second contact is attached to said substrate first surface and extends through said battery cavity before extending thereover.

3. The battery mounting contact of claim 1, wherein said substantially planar first contact and said substantially planar second contact are each in electrical communication with separate conductive traces which are in electrical communication with circuitry on said substrate.

4. A battery assembly comprising:

a substrate having a battery cavity defined therein;

a substantially planar first contact attached to a first surface of said substrate and extending over said battery cavity substantially planarly adjacent to said substrate first surface;

a substantially planar second contact extending over said battery cavity, said substantially planar second contact substantially planarly adjacent to a second surface of said substrate; and

a battery, having a first contact surface and a second contact surface, disposed within said battery cavity between said substantially planar first contact and said substantial planar second contact, wherein said battery first contact surface electrically communicates with said substantially planar first contact and said battery second contact surface electrically communicates with said substantially planar second contact.

5. The battery assembly of claim 4, wherein said substantially planar second contact is attached to said substrate first surface and extends through said battery cavity before extending thereover.

6. The battery assembly of claim 4, wherein said substantially planar first contact and said substantially planar second contact are each in electrical communication with separate conductive traces which are in electrical communication with circuitry on said substrate.

7. An active radio frequency identification tag comprising:

a substrate having a battery cavity defined therein;

a substantially planar first contact attached to a first surface of said substrate and extending over said battery cavity substantially planarly adjacent to said substrate first surface;

a substantially planar second contact extending over said battery cavity, said substantially planar second contact substantially planarly adjacent to a second surface of said substrate;

a battery, having a first contact surface and a second contact surface, disposed within said battery cavity between said substantially planar first contact and said substantially planar second contact, wherein said battery first contact surface electrically communicates with said substantially planar first contact and said battery second contact surface electrically communicates with said substantially planar second contact;

a circuitry component in electrical communication with said substantially planar first contact through a first electrical trace, and in electrical communication with said substantially planar second contact through a second electrical trace; and

an antenna operationally engaged to said circuitry component.

8. The active radio frequency identification tag of claim 7, wherein said substantially planar second contact is attached to said substrate first surface and extends through said battery cavity before extending thereover.

9. The active radio frequency identification tag of claim 7, wherein said substantially planar first contact and said substantially planar second contact are each in electrical communication with separate conductive traces which are in electrical communication with circuitry on said substrate.

10. A battery mounting contact comprising:

a substantially planar substrate having two sides;

a battery cavity opening onto at least one side of said substrate;

a substantially planar first contact extending at least partially across said battery cavity adjacent one substrate side; and

a substantially planar second contact extending over at least partially across said battery cavity adjacent the other substrate side.

11. A method of fabrication of an active tag comprising:

providing a substrate having two surfaces, said substrate having circuitry and a battery cavity therein;

disposing a battery having two contact surfaces in said battery cavity;

contacting one battery contact surface with a substantially planar first contact adjacent one substrate surface; and

contacting the other battery contact surface with a substantially planar second contact adjacent the other substrate surface.

12. A radio frequency identification system comprising:

a base station for transmitting and receiving radio frequency signals; and

at least one active tag for receiving said radio frequency signals from said base station and for transmitting radio frequency signals to said base station, comprising;

a substrate having a battery cavity defined therein;

a substantially planar first contact attached to a first surface of said substrate and extending over said battery cavity substantially planarly adjacent to said substrate first surface; and

a substantially planar second contact extending over said battery cavity, said substantially planar second contact substantially planarly adjacent to a second surface of said substrate.

13. The radio frequency identification system of claim 15, wherein said substantially planar second contact is attached to said substrate first surface and extends through said battery cavity before extending thereover.

14. The radio frequency identification system of claim 12, wherein said substantially planar first contact and said substantially planar second contact are each in electrical communication with separate conductive traces which are in electrical communication with circuitry on said substrate.

15. The radio frequency identification system of claim 12, wherein said at least one active tag further comprises:

a battery, having a first contact surface and a second contact surface, disposed within said battery cavity between said substantially planar first contact and said substantially planar second contact, wherein said battery first contact surface electrically communicates with said substantially planar first contact and said battery second contact surface electrically communicates with said substantially planar second contact.

16. The radio frequency identification system of claim 15, wherein said at least one active tag further comprises:

a circuitry component in electrical communication with said substantially planar first contact through a first electrical trace, and in electrical communication with said substantially planar second contact through a second electrical trace; and

an antenna operationally engaged to said circuitry component.

17. A radio frequency identification system comprising:

a base station for transmitting and receiving radio frequency signals; and

at least one active tag for receiving i radio frequency signals from said base station and for transmitting radio frequency signals to said base station, comprising;

a substantially planar substrate having two sides;

a battery cavity opening onto at least one side of said substrate;

a substantially planar first contact extending at least partially across said battery cavity adjacent one substrate side; and

a substantially planar second contact extending over at least partially across said battery cavity adjacent the other substrate side.

18. A battery mounting contact comprising:

a substrate having a battery cavity defined therein;

a first contact attached to a first surface of said substrate and extending over said battery cavity substantially planarly adjacent to said substrate first surface; and

a second contact extending over said battery cavity, said second contact attached to a second surface of said substrate and extending over said battery cavity to align substantially planarly adjacent to said substrate second surface.

19. The battery mounting contact of claim 18, wherein said first contact and said second contact are each in electrical communication with separate conductive traces which are in electrical communication with circuitry on said substrate.

20. A battery assembly comprising:

a substrate having a battery cavity defined therein;

a first contact attached to a first surface of said substrate and extending over said battery cavity substantially planarly adjacent to said substrate first surface;

a second contact extending over said battery cavity, said second contact attached to a second surface of said substrate and extending over said battery cavity to align substantially planarly adjacent to said substrate second surface; and

a battery, having a first contact surface and a second contact surface, disposed within said battery cavity between said first contact and said second contact, wherein said battery first contact surface electrically communicates with said first contact and said battery second contact surface electrically communicates with said second contact.

21. The battery assembly of claim 20, wherein said first contact and said second contact are each in electrical communication with separate conductive traces which are in electrical communication with circuitry on said substrate.

22. An active radio frequency identification tag comprising:

a substrate having a battery cavity defined therein;

a first contact attached to a first surface of said substrate and extending over said battery cavity substantially planarly adjacent to said substrate first surface;

a second contact extending over said battery cavity, said second contact attached to and substantially planarly adjacent to a second surface of said substrate;

a battery, having a first contact surface and a second contact surface, disposed within said battery cavity between said first contact and said second contact, wherein said battery first contact surface electrically communicates with said first contact and said battery second contact surface electrically communicates with said second contact;

a circuitry component in electrical communication with said first contact through a first electrical trace, and in electrical communication with said second contact through a second electrical trace; and

an antenna operationally engaged to said circuitry component.

23. The active radio frequency identification tag of claim 22, wherein said first contact and said second contact are each in electrical communication with separate conductive traces which are in electrical communication with circuitry on said substrate.

24. A battery mounting contact comprising:

a substantially planar substrate having two sides;

a battery cavity opening onto at least one side of said substrate;

a first contact extending at least partially across said battery cavity adjacent one substrate side; and

a second contact extending over at least partially across said battery cavity, said second contact attached to and adjacent the other substrate side.

25. A method of fabrication of an active tag comprising:

providing a substrate having two surfaces, said substrate having circuitry and a battery cavity therein;

disposing a battery having two contact surfaces in said battery cavity;

contacting one battery contact surface with a first contact attached to and adjacent one substrate surface; and

contacting the other battery contact surface with a second contact attached to and adjacent the other substrate surface.

26. A radio frequency identification system comprising:

a base station for transmitting and receiving radio frequency signals; and

at least one active tag for receiving mid radio frequency signals from said base station and for transmitting radio frequency signals to said base station, comprising;

a substrate having a battery cavity defined therein;

a first contact attached to a first surface of said substrate and extending over said battery cavity substantially planarly adjacent to said substrate first surface; and

a second contact extending over said battery cavity, said second contact attached to a second surface of said substrate and extending over said battery cavity to align substantially planarly adjacent to said substrate second surface.

27. The radio frequency identification system of claim 26, wherein said first contact and said second contact are each in electrical communication with separate conductive traces which are in electrical communication with circuitry on said substrate.

28. The radio frequency identification system of claim 26, wherein said at least one active tag further comprises:

a battery, having a first contact surface and a second contact surface, disposed within said battery cavity between said first contact and said second contact, wherein said battery first contact surface electrically communicates with said first contact and said battery second contact surface electrically communicates with said second contact.

29. The radio frequency identification system of claim 28, wherein said at least one active tag further comprises:

a circuitry component in electrical communication with said first contact through a first electrical trace, and in electrical communication with said second contact through a second electrical trace; and

an antenna operationally engaged to said circuitry component.

30. A radio frequency identification system comprising:

a base station for transmitting and receiving radio frequency signals; and

at least one active tag for receiving said radio frequency signals from said base station and for transmitting radio frequency signals to said base station, comprising;

a substantially planar substrate having two sides;

a battery cavity opening onto at least one side of said substrate;

a first contact extending at least partially across said battery cavity adjacent one substrate side; and

a second contact extending over at least partially across said battery cavity adjacent the other substrate side.