Electronic devices and methods of forming electronic devices

• US 6,043,745 A
• Filed: 11/13/1997
• Issued: 03/28/2000
• Est. Priority Date: 11/13/1997
• Status: Expired due to Term

• Current Assignee: Round Rock Research LLC
• Original Assignee: Micron Technology, Inc.
• Inventors: Lake, Rickie C.
• Primary Examiner(s): MULLEN, THOMAS J
• Application Number:
  US08/969,625
• Time in Patent Office: 866 Days
• Field of Search: 340/572.1, 340/572.7, 340/572.8, 340/505, 340/825.54, 361/748, 361/760, 361/772, 361/774, 361/777, 361/779, 29/825, 29/829, 29/846, 29/854, 29/855
• US Class Current: 340/572.1
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: H05K 3/4685 Manufacturing of cross-over conductors
• CPC Class Codes: Y10T 29/49171 with encapsulating

Abstract

The present invention provides electronic devices and methods of forming electronic devices. One embodiment of the present invention provides an electronic device which includes a substrate having a support surface; a first conductor over the support surface of the substrate, the first conductor including a predetermined portion which defines a first area and a second area of the support surface; at least one electrical component coupled with the first conductor; and a second conductor comprising a conductive adhesive, the second conductor being positioned over the support surface of the substrate and across the predetermined portion of the first conductor, the conductive adhesive being configured to electrically couple the first area with the second area.

Claims

1. An electronic device comprising:

a substrate having a support surface;

a first conductor on the support surface of the substrate, the first conductor including a predetermined portion which defines a first area and a second area on the support surface;

an electrical component coupled with the first conductor; and

a second conductor comprising a conductive adhesive, the second conductor being positioned over the support surface of the substrate and across the predetermined portion of the first conductor, the conductive adhesive being substantially electrically insulated from the first conductor and configured to electrically couple the first area with the second area.

2. The electronic device according to claim 1 further comprising a dielectric provided over the predetermined portion of the first conductor and intermediate the first area and the second area, the dielectric being configured to substantially electrically insulate the second conductor from the predetermined portion of the first conductor.

3. The electronic device according to claim 1 wherein the substrate comprises a flexible polyester film.

4. The electronic device according to claim 1 wherein conductive adhesive couples the electrical component with the first conductor.

5. The electronic device according to claim 1 wherein the first conductor is part of a conductive pattern.

6. The electronic device according to claim 1 wherein a plurality of electrical components are coupled with the first conductor, the plurality of electrical components including plural power sources and an integrated circuit.

7. The electronic device according to claim 6 wherein the integrated circuit includes a transmitter, a receiver, and microprocessor in cooperation with one another.

8. The electronic device according to claim 1 wherein the second conductor couples a terminal of a first power source with a terminal of a second power source.

9. The electronic device according to claim 1 wherein the first conductor comprises a polymer thick film.

10. The electronic device according to claim 1 wherein the first conductor includes one portion with a width, and wherein the predetermined portion of the first conductor has a reduced width relative to the one portion of the first conductor.

11. The electronic device according to claim 1 wherein the predetermined portion is intermediate the first area and the second area.

12. An apparatus configured to conduct electricity comprising:

a substrate having a support surface;

a first conductor over the support surface of the substrate and the first conductor having a predetermined portion which defines a first area and a second area on the support surface;

a dielectric over the predetermined portion of the first conductor intermediate the first area and the second area; and

a second conductor over the dielectric and the support surface of the substrate, the second conductor comprising an adhesive configured to conduct electricity from the first area to the second area.

13. The apparatus according to claim 12 wherein the substrate comprises a flexible polyester film.

14. The apparatus according to claim 12 wherein the second conductor is operable to electrically connect a terminal of a first power source and a terminal of a second power source.

15. The apparatus according to claim 12 wherein the first conductor comprises a polymer thick film.

16. The apparatus according to claim 12 wherein the first conductor includes another portion with a width, and wherein the predetermined portion of the first conductor has a reduced width relative to the another portion of the first conductor at a position intermediate the first area and second area.

17. The apparatus according to claim 12 wherein the first conductor is intermediate the first area and the second area.

18. The apparatus according to claim 12 wherein the first conductor is part of a conductive pattern.

19. A wireless identification device comprising:

a flexible substrate having a support surface;

a conductive pattern over the support surface of the substrate, the conductive pattern including a plurality of conductors;

an electrical component coupled with the conductive pattern;

a dielectric layer over a predetermined portion of the conductive pattern; and

a conductive adhesive over the dielectric layer and operable to couple plural conductors of the conductive pattern.

20. The wireless identification device according to claim 19 wherein the substrate comprises a polyester film.

21. The wireless identification device according to claim 19 wherein the electrical component is coupled with the conductive pattern using the conductive adhesive.

22. The wireless identification device according to claim 21 wherein the at least one electrical component includes plural power sources and an integrated circuit.

23. The wireless identification device according to claim 22 wherein the integrated circuit includes a transmitter, a receiver, and microprocessor in cooperation with one another.

24. The wireless identification device according to claim 19 wherein the conductive adhesive couples a terminal of a first power source with a terminal of a second power source.

25. The wireless identification device according to claim 19 wherein the conductive pattern comprises a polymer thick film.

26. The wireless identification device according to claim 19 wherein the predetermined portion of the conductive pattern has a reduced width.

27. The wireless identification device according to claim 19 wherein the conductive adhesive is configured to electrically couple opposing sides of the predetermined portion of the conductive pattern.

28. A method of forming an electronic device comprising:

forming a first conductor over a support surface of a substrate;

forming a second conductor over the support surface of the substrate, the second conductor comprising an adhesive operable to conduct electricity;

defining a first area and a second area of the support surface of the substrate using the first conductor;

substantially electrically insulating the second conductor from the first conductor; and

conducting electricity intermediate the first area and the second area using the second conductor.

29. The method according to claim 28 wherein the forming the second conductor comprises forming the second conductor across the first conductor.

30. The method according to claim 28 wherein the substantially electrically insulating comprises providing a dielectric layer intermediate the first conductor and the second conductor and intermediate the first area and the second area.

31. The method according to claim 28 wherein the substrate comprises a flexible polyester film.

32. The method according to claim 28 wherein the forming the first conductor comprises forming a conductive pattern.

33. The method according to claim 32 further comprising coupling an electrical component with the conductive pattern using the adhesive.

34. The method according to claim 28 further comprising coupling a terminal of a first power source with a terminal of a second power source using the second conductor.

35. The method according to claim 28 wherein the first conductor has a reduced width at a position intermediate the first area and second area.

36. The method according to claim 28 further comprising providing the first conductor intermediate the first area and the second area.

37. The method according to claim 28 wherein forming the first conductor comprises using a polymer thick film.

38. A method of forming a remote intelligent communication device comprising:

providing a flexible substrate having a support surface;

forming a conductive pattern over the support surface of the substrate, the conductive pattern including a plurality of conductors;

coupling at least one electrical component with the conductive pattern;

forming a dielectric layer over at least a predetermined portion of the conductive pattern;

providing a conductive adhesive over the dielectric layer and the support surface of the substrate; and

coupling plural conductors of the conductive pattern using the conductive adhesive.

39. The method according to claim 38 wherein the substrate comprises a polyester film.

40. The method according to claim 38 wherein the providing the conductive adhesive provides conductive adhesive upon preselected portions of the support surface.

41. The method according to claim 38 further comprising providing at least one electrical component coupled with the conductive pattern using the conductive adhesive.

42. The method according to claim 38 wherein the coupling plural conductors couples a terminal of a first power source with a terminal of a second power source.

43. The method according to claim 38 wherein the forming the conductive pattern comprises printing a polymer thick film.

44. The method according to claim 38 wherein the first conductor includes one portion with a width, and wherein the predetermined portion of the conductive pattern has a reduced width relative to the one portion of the first conductor at a position adjacent the dielectric layer and the conductive adhesive.

45. The method according to claim 38 wherein the plural conductors are adjacent respective opposing sides of the predetermined portion of the conductive pattern.

46. A method of conducting electricity comprising:

providing a substrate having a support surface;

forming a first conductor over the support surface of the substrate, the first conductor defining a first area adjacent a first side of the first conductor and a second area adjacent a second side of the first conductor;

providing a dielectric layer over at least a portion of the first conductor;

conducting electricity from the first area to the second area using a conductive adhesive; and

insulating the first conductor from the conductive adhesive using the dielectric.

47. The method according to claim 46 wherein the first conductor is intermediate the first area and second area.

48. The method according to claim 46 further comprising providing the conductive adhesive over the dielectric layer.

49. The method according to claim 46 wherein the substrate comprises a flexible polyester film.

50. The method according to claim 46 further comprising electrically connecting a terminal of a first power source and a terminal of a second power source.

51. The method according to claim 46 wherein the first conductor comprises a polymer thick film.

52. The method according to claim 46 wherein the first conductor includes one portion with a width, and wherein the predetermined portion of the first conductor has a reduced width relative to the one portion of the first conductor.

53. The method according to claim 46 wherein the conductive adhesive is operable to electrically connect a terminal of a first power source and a terminal of a second power source.

54. The method according to claim 46 wherein the forming the first conductor comprises forming a conductive pattern.

55. A method of forming a remote intelligent communication device comprising:

providing a flexible substrate having a support surface;

printing a conductive pattern upon the support surface of the flexible substrate, the conductive pattern comprises a polymer thick film and includes a first conductor operable to conduct electricity;

defining a first area and a second area upon the flexible substrate using the first conductor;

forming a dielectric layer over at least a predetermined portion of the first conductor;

depositing conductive epoxy at preselected positions upon the support surface of the substrate;

electrically coupling the deposited conductive epoxy with the conductive pattern;

coupling a battery with the conductive pattern using the conductive epoxy;

coupling an integrated circuit with the conductive pattern using the conductive epoxy, the integrated circuit including a transmitter, receiver, memory, and microprocessor in cooperation with one another;

depositing conductive epoxy upon the dielectric layer to provide a second conductor;

coupling the second conductor with the conductive pattern at the first area and the second area;

insulating the first conductor and second conductor using the dielectric; and

encapsulating the battery, the integrated circuit, the conductive pattern, the second conductor and the support surface of the substrate using an encapsulant.