Thin Profile Battery Bonding Method, Method Of Conductively Interconnecting Electronic Components, Battery Powerable Apparatus, Radio Frequency Communication Device, And Electric Circuit

• US 20080291027A1
• Filed: 09/13/2007
• Published: 11/27/2008
• Est. Priority Date: 02/12/1998
• Status: Abandoned Application

• Current Assignee: Round Rock Research LLC
• Original Assignee: Round Rock Research LLC
• Inventors: Lake, Rickie C.
• Application Number:
  US11/854,984
• Publication Number:
  US 20080291027A1
• Time in Patent Office: Days
• US Class Current: 340/572.7
• CPC Class Codes: H01M 50/216 adapted for button or coin cells
• CPC Class Codes: H05K 2201/0162 Silicon containing polymer, e.g. silicone
• CPC Class Codes: H05K 2201/10037 Printed or non-printed battery
• CPC Class Codes: H05K 3/321 by conductive adhesives
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10S 257/924 with passive device, e.g. capacitor, or battery, as integral part of housing or housing element, e.g. cap
• CPC Class Codes: Y10T 29/49114 including adhesively bonding
• CPC Class Codes: Y10T 29/4913 Assembling to base an electrical component, e.g., capacitor, etc.

Abstract

A curable adhesive composition is provided which comprises an epoxy terminated silane. A thin profile battery and a substrate to which the thin profile battery is to be conductively connected are also provided. The curable adhesive composition is interposed between the thin profile battery and the substrate. It is cured into an electrically conductive bond electrically interconnecting the battery and the substrate. In another aspect, the invention includes a method of conductively interconnecting electronic components using a curable adhesive composition which comprises an epoxy terminated silane. The invention in another aspect includes interposing a curable epoxy composition between first and second electrically conductive components to be electrically interconnected. At least one of the components comprises a metal surface with which the curable epoxy is to electrically connect. The epoxy is cured into an electrically conductive bond electrically interconnecting the first and second components. The epoxy has an effective metal surface wetting concentration of silane to form a cured electrical interconnection having a resistance through said metal surface of less than or equal to about 0.3 ohm-cm². In another aspect, a battery powerable apparatus includes a conductive adhesive mass comprising an epoxy terminated silane between a battery and substrate. A radio frequency communication device is one example. In another aspect, the invention includes an electric circuit comprising first and second electric components electrically connected with one another through a conductive adhesive mass comprising an epoxy terminated silane.

Claims

1-50. -50. (canceled)

51. A radio frequency identification (RFID) tag comprising:

an antenna;

circuitry electrically coupled to the antenna; and

a battery electrically coupled to the circuitry, the battery having a thickness less than a maximum linear dimension of a cathode and an anode of the battery, wherein the battery is electrically coupled to the circuitry at least in part by a conductive adhesive comprising an epoxy terminated silane.

52. The RFID tag of claim 51, wherein the circuitry includes at least one integrated circuit.

53. The RFID tag of claim 51, wherein the battery comprises a thin-profile battery.

54. The RFID tag of claim 51, wherein the antenna, circuitry, and battery are mounted on a flexible substrate.

55. The RFID tag of claim 51, wherein the epoxy terminated silane comprises a glycidoxy methoxy silane.

56. The RFID tag of claim 51, wherein the epoxy terminated silane comprises a glycidoxyproplytrimethoxysilane.

57. The RFID tag of claim 51, wherein the epoxy terminated silane is present in the conductive adhesive at less than or equal to about 2% by weight.

58. The RFID tag of claim 51, wherein the epoxy terminated silane is present in the conductive adhesive at less than or equal to about 1% by weight.

59. The RFID tag of claim 51, wherein the battery comprises an outer nickel clad stainless steel surface over which the conductive adhesive is received.

60. The RFID tag of claim 51, wherein the battery is a button type battery having a terminal comprising an outer nickel clad stainless steel surface over which the conductive adhesive is received.

61. The RFID tag of claim 51, wherein the battery is a button type battery having a terminal comprising an outer nickel clad stainless steel surface over which the conductive adhesive is received, and further comprising a substrate comprising conductive printed ink over which the conductive adhesive is received.

62. A radio frequency identification (RFID) tag comprising:

a flexible substrate;

circuitry on the flexible substrate;

an antenna on the flexible substrate and electrically coupled to the circuitry; and

a power source electrically coupled to the circuitry at least in part by a conductive adhesive comprising an epoxy terminated silane, the power source having a thickness less than a maximum linear dimension of an anode or a cathode of the power source.

63. The RFID tag of claim 62, wherein the circuitry includes an integrated circuit.

64. The RFID tag of claim 62, wherein the epoxy terminated silane comprises a glycidoxy methoxy silane.

65. The RFID tag of claim 62, wherein the epoxy terminated silane comprises a glycidoxyproplytrimethoxysilane.

66. The RFID tag of claim 62, wherein the epoxy terminated silane is present in the conductive adhesive at less than or equal to about 2% by weight.

67. The RFID tag of claim 62, wherein the epoxy terminated silane is present in the conductive adhesive at less than or equal to about 1% by weight.

68. The RFID tag of claim 62, wherein the power source comprises a thin profile battery.

69. The RFID tag of claim 68, wherein the thin profile battery comprises an outer nickel clad stainless steel surface over which the conductive adhesive is received.

70. The RFID tag of claim 68, wherein the thin profile battery is a button type battery having a terminal comprising an outer nickel clad stainless steel surface over which the conductive adhesive is received.

71. The RFID tag of claim 68, wherein the thin profile battery is a button type battery having a terminal comprising an outer nickel clad stainless steel surface over which the conductive adhesive is received, and the flexible substrate comprises conductive printed ink over which the conductive adhesive is received.

72. A method of forming a radio frequency identification (RFID) tag, the method comprising:

providing a substrate having circuitry and an antenna thereon;

electrically coupling a power source to the circuitry, the power source having a thickness less than a maximum linear dimension of an anode or a cathode of the power source, wherein the electrically coupling is performed at least in part by affixing the power source to the substrate with a conductive adhesive comprising an epoxy terminated silane.

73. The method of claim 72, wherein the circuitry includes an integrated circuit.

74. The method of claim 72, wherein the substrate is a flexible substrate.

75. The method of claim 72, wherein the epoxy terminated silane comprises a glycidoxy methoxy silane.

76. The method of claim 72, wherein the epoxy terminated silane comprises a glycidoxyproplytrimethoxysilane.

77. The method of claim 72, wherein the epoxy terminated silane is present in the conductive adhesive at less than or equal to about 2% by weight.

78. The method of claim 72, wherein the epoxy terminated silane is present in the conductive adhesive at less than or equal to about 1% by weight.

79. The method of claim 72, wherein the power source comprises a thin profile battery.

80. The method of claim 79, wherein the thin profile battery comprises an outer nickel clad stainless steel surface over which the conductive adhesive is received.

81. The method of claim 79, wherein the thin profile battery is a button type battery having a terminal comprising an outer nickel clad stainless steel surface over which the conductive adhesive is received.

82. The method of claim 79, wherein the thin profile battery is a button type battery having a terminal comprising an outer nickel clad stainless steel surface over which the conductive adhesive is received, and the substrate comprises conductive printed ink over which the conductive adhesive is received.