Semiconductor device

• US 20050133605A1
• Filed: 12/06/2004
• Published: 06/23/2005
• Est. Priority Date: 12/19/2003
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Saito, Toshihiko, Koyama, Jun
• Granted Patent: US 7,494,066 B2
• Time in Patent Office: Days
• US Class Current: 235/492
• CPC Class Codes: G06K 19/0713 the arrangement including a power charge pump
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs

Abstract

The invention provides a circuit which provides a stabilized boosting in the case where a semiconductor device typified by a non-contact ID chip includes a circuit which requires a higher voltage than a logic circuit does. By inputting an alternating signal inputted from an antenna to a charge pump circuit as it is or through a logic circuit, a charge pump can operate with a stabilized frequency that a clock frequency is not affected by a variation of elements and the ambient temperature, thus a stabilized boosting can be provided.

Claims

1. A semiconductor device comprising:

an antenna circuit;

a power source circuit electrically connected to the antenna circuit;

a charge pump having;

an input terminal electrically connected to the power source circuit; and

a clock input terminal electrically connected to the antenna circuit.

7. A semiconductor device according to claim 1, further comprising a display portion comprising a display element selected from the group consisting of a liquid crystal element, a light emitting element and an electrophoresis element.

8. A semiconductor device according to claim 1, wherein the charge pump further comprising:

a diode having;

an anode electrically connected to the input terminal; and

a cathode electrically connected to the output terminal;

a first capacitor electrically connected to the anode;

a second capacitor electrically connected to the cathode; and

an inverter,

wherein an output terminal of the inverter is electrically connected to the first capacitor, and

wherein an input terminal of the inverter is electrically connected to the second capacitor and the clock input terminal.

9. A semiconductor device according to claim 1, wherein the charge pump further comprising:

a capacitor;

a first transistor having;

a first electrode electrically connected to the input terminal; and

a second electrode electrically connected to the capacitor;

a second transistor having;

a third electrode electrically connected to the reference power source; and

a fourth electrode electrically connected to the capacitor;

a third transistor having;

a fifth electrode electrically connected to the capacitor and the fourth electrode; and

a sixth electrode electrically connected to the first electrode;

a fourth transistor having;

a seventh electrode electrically connected to the second electrode and the capacitor; and

a eighth electrode electrically connected to the output terminal;

10. A semiconductor device according to claim 1, wherein any one of the power source circuit and the charge pump comprises a thin film transistor formed over a substrate.

39. An IC card comprising the semiconductor device according to claim 1.

40. An ID tag, comprising the semiconductor device according to claim 1.

41. A wireless tag comprising the semiconductor device according to claim 1.

42. A wireless chip comprising the semiconductor device according to claim 1.

43. An ID chip comprising the semiconductor device according to claim 1.

2. A semiconductor device comprising:

an antenna circuit;

a power source circuit electrically connected to the antenna circuit;

a transmitting and receiving circuit electrically connected to the antenna circuit and the power source circuit; and

a charge pump having;

an input terminal electrically connected to the power source circuit; and

a clock input terminal electrically connected to the transmitting and receiving circuit.

11. A semiconductor device according to claim 2, further comprising a display portion comprising a display element selected from the group consisting of a liquid crystal element, a light emitting element and an electrophoresis element.

12. A semiconductor device according to claim 2, wherein the charge pump further comprising:

a diode having;

an anode electrically connected to the input terminal; and

a cathode electrically connected to the output terminal;

a first capacitor electrically connected to the anode;

a second capacitor electrically connected to the cathode; and

an inverter,

wherein an output terminal of the inverter is electrically connected to the first capacitor, and

wherein an input terminal of the inverter is electrically connected to the second capacitor and the clock input terminal.

13. A semiconductor device according to claim 2, wherein the charge pump further comprising:

a capacitor;

a first transistor having;

a first electrode electrically connected to the input terminal; and

a second electrode electrically connected to the capacitor;

a second transistor having;

a third electrode electrically connected to the reference power source; and

a fourth electrode electrically connected to the capacitor;

a third transistor having;

a fifth electrode electrically connected to the capacitor and the fourth electrode; and

a sixth electrode electrically connected to the first electrode;

a fourth transistor having;

a seventh electrode electrically connected to the second electrode and the capacitor; and

a eighth electrode electrically connected to the output terminal;

14. A semiconductor device according to claim 2, wherein any one of the power source circuit, the charge pump and the transmitting and receiving circuit comprises a thin film transistor formed over a substrate.

44. An IC card comprising the semiconductor device according to claim 2.

45. An ID tag, comprising the semiconductor device according to claim 2.

46. A wireless tag comprising the semiconductor device according to claim 2.

47. A wireless chip comprising the semiconductor device according to claim 2.

48. An ID chip comprising the semiconductor device according to claim 2.

3. A semiconductor device comprising:

an antenna circuit;

a power source circuit electrically connected to the antenna circuit;

a charge pump having;

an input terminal electrically connected to the power source circuit;

a clock input terminal electrically connected to the antenna circuit; and

an output terminal;

a non-volatile memory is electrically connected to the power source circuit and the output terminal;

a logic circuit electrically connected to the power source circuit and the non-volatile memory;

a switching transistor electrically connected to the logic circuit; and

a reference power source electrically connected to the antenna circuit via the switching transistor.

15. A semiconductor device according to claim 3, wherein the non-volatile memory is electrically connected to the antenna circuit.

16. A semiconductor device according to claim 3, wherein the non-volatile memory is EEPROM.

17. A semiconductor device according to claim 3, further comprising a display portion comprising a display element selected from the group consisting of a liquid crystal element, a light emitting element and an electrophoresis element.

18. A semiconductor device according to claim 3, wherein the charge pump further comprising:

a diode having;

an anode electrically connected to the input terminal; and

a cathode electrically connected to the output terminal;

a first capacitor electrically connected to the anode;

a second capacitor electrically connected to the cathode; and

an inverter,

wherein an output terminal of the inverter is electrically connected to the first capacitor, and

wherein an input terminal of the inverter is electrically connected to the second capacitor and the clock input terminal.

19. A semiconductor device according to claim 3, wherein the charge pump further comprising:

a capacitor;

a first transistor having;

a first electrode electrically connected to the input terminal; and

a second electrode electrically connected to the capacitor;

a second transistor having;

a third electrode electrically connected to the reference power source; and

a fourth electrode electrically connected to the capacitor;

a third transistor having;

a fifth electrode electrically connected to the capacitor and the fourth electrode; and

a sixth electrode electrically connected to the first electrode;

a fourth transistor having;

a seventh electrode electrically connected to the second electrode and the capacitor; and

a eighth electrode electrically connected to the output terminal;

20. A semiconductor device according to claim 3, wherein any one of the power source circuit, the charge pump, non-volatile memory and logic circuit comprises a thin film transistor formed over a substrate.

49. An IC card comprising the semiconductor device according to claim 3.

50. An ID tag, comprising the semiconductor device according to claim 3.

51. A wireless tag comprising the semiconductor device according to claim 3.

52. A wireless chip comprising the semiconductor device according to claim 3.

53. An ID chip comprising the semiconductor device according to claim 3.

4. A semiconductor device comprising:

an antenna circuit;

a power source circuit electrically connected to the antenna circuit;

a transmitting and receiving circuit electrically connected to the antenna circuit and the power source circuit;

a charge pump having;

an input terminal electrically connected to the power source circuit;

a clock input terminal electrically connected to the transmitting and receiving circuit; and

an output terminal;

a non-volatile memory is electrically connected to the power source circuit and the output terminal;

a logic circuit electrically connected to the power source circuit and the non-volatile memory;

a switching transistor electrically connected to the logic circuit; and

a reference power source electrically connected to the antenna circuit via the switching transistor.

21. A semiconductor device according to claim 4, wherein the non-volatile memory is electrically connected to the transmitting and receiving circuit.

22. A semiconductor device according to claim 4, wherein the non-volatile memory is EEPROM.

23. A semiconductor device according to claim 4, further comprising a display portion comprising a display element selected from the group consisting of a liquid crystal element, a light emitting element and an electrophoresis element.

24. A semiconductor device according to claim 4, wherein the charge pump further comprising:

a diode having;

an anode electrically connected to the input terminal; and

a cathode electrically connected to the output terminal;

a first capacitor electrically connected to the anode;

a second capacitor electrically connected to the cathode; and

an inverter,

wherein an output terminal of the inverter is electrically connected to the first capacitor, and

wherein an input terminal of the inverter is electrically connected to the second capacitor and the clock input terminal.

25. A semiconductor device according to claim 4, wherein the charge pump further comprising:

a capacitor;

a first transistor having;

a first electrode electrically connected to the input terminal; and

a second electrode electrically connected to the capacitor;

a second transistor having;

a third electrode electrically connected to the reference power source; and

a fourth electrode electrically connected to the capacitor;

a third transistor having;

a fifth electrode electrically connected to the capacitor and the fourth electrode; and

a sixth electrode electrically connected to the first electrode;

a fourth transistor having;

a seventh electrode electrically connected to the second electrode and the capacitor; and

a eighth electrode electrically connected to the output terminal;

26. A semiconductor device according to claim 4, wherein any one of the power source circuit, the charge pump, the transmitting and receiving circuit comprises a thin film transistor formed over a substrate.

54. An IC card comprising the semiconductor device according to claim 4.

55. An ID tag, comprising the semiconductor device according to claim 4.

56. A wireless tag comprising the semiconductor device according to claim 4.

57. A wireless chip comprising the semiconductor device according to claim 4.

58. An ID chip comprising the semiconductor device according to claim 4.

5. A semiconductor device comprising:

an antenna circuit;

a rectifier circuit electrically connected to the antenna circuit;

a stabilizing power source electrically connected to the rectifier circuit;

a charge pump having;

an input terminal electrically connected to the stabilizing power source;

a clock input terminal electrically connected to the antenna circuit; and

an output terminal;

a non-volatile memory is electrically connected to the stabilizing power source and the output terminal;

a logic circuit electrically connected to the stabilizing power source and the non-volatile memory;

a switching transistor electrically connected to the logic circuit; and

a reference power source electrically connected to the antenna circuit via the switching transistor.

27. A semiconductor device according to claim 5, wherein the non-volatile memory is electrically connected to the antenna circuit.

28. A semiconductor device according to claim 5, wherein the non-volatile memory is EEPROM.

29. A semiconductor device according to claim 5, further comprising a display portion comprising a display element selected from the group consisting of a liquid crystal element, a light emitting element and an electrophoresis element.

30. A semiconductor device according to claim 5, wherein the charge pump further comprising:

a diode having;

an anode electrically connected to the input terminal; and

a cathode electrically connected to the output terminal;

a first capacitor electrically connected to the anode;

a second capacitor electrically connected to the cathode; and

an inverter,

wherein an output terminal of the inverter is electrically connected to the first capacitor, and

wherein an input terminal of the inverter is electrically connected to the second capacitor and the clock input terminal.

31. A semiconductor device according to claim 5, wherein the charge pump further comprising:

a capacitor;

a first transistor having;

a first electrode electrically connected to the input terminal; and

a second electrode electrically connected to the capacitor;

a second transistor having;

a third electrode electrically connected to the reference power source; and

a fourth electrode electrically connected to the capacitor;

a third transistor having;

a fifth electrode electrically connected to the capacitor and the fourth electrode; and

a sixth electrode electrically connected to the first electrode;

a fourth transistor having;

a seventh electrode electrically connected to the second electrode and the capacitor; and

a eighth electrode electrically connected to the output terminal;

32. A semiconductor device according to claim 5, wherein any one of the rectifier circuit, the stabilizing circuit and the charge pump comprises a thin film transistor formed over a substrate.

59. An IC card comprising the semiconductor device according to claim 5.

60. An ID tag, comprising the semiconductor device according to claim 5.

61. A wireless tag comprising the semiconductor device according to claim 5.

62. A wireless chip comprising the semiconductor device according to claim 5.

63. An ID chip comprising the semiconductor device according to claim 5.

6. A semiconductor device comprising:

an antenna circuit;

a rectifier circuit electrically connected to the antenna circuit;

a stabilizing power source electrically connected to the rectifier circuit;

an amplifier electrically connected to the stabilizing power source and the antenna circuit;

a divider circuit electrically connected to the stabilizing power source and the amplifier;

a charge pump having;

an input terminal electrically connected to the stabilizing power source;

a clock input terminal electrically connected to the divider circuit; and

an output terminal;

a non-volatile memory is electrically connected to the stabilizing power source and the output terminal;

a logic circuit electrically connected to the stabilizing power source and the non-volatile memory;

a switching transistor electrically connected to the logic circuit; and

a reference power source electrically connected to the antenna circuit via the switching transistor.

33. A semiconductor device according to claim 6, wherein the non-volatile memory is electrically connected to the dividing.

34. A semiconductor device according to claim 6, wherein the non-volatile memory is EEPROM.

35. A semiconductor device according to claim 6, further comprising a display portion comprising a display element selected from the group consisting of a liquid crystal element, a light emitting element and an electrophoresis element.

36. A semiconductor device according to claim 6, wherein the charge pump further comprising:

a diode having;

an anode electrically connected to the input terminal; and

a cathode electrically connected to the output terminal;

a first capacitor electrically connected to the anode;

a second capacitor electrically connected to the cathode; and

an inverter,

wherein an output terminal of the inverter is electrically connected to the first capacitor, and

wherein an input terminal of the inverter is electrically connected to the second capacitor and the clock input terminal.

37. A semiconductor device according to claim 6, wherein the charge pump further comprising:

a capacitor;

a first transistor having;

a first electrode electrically connected to the input terminal; and

a second electrode electrically connected to the capacitor;

a second transistor having;

a third electrode electrically connected to the reference power source; and

a fourth electrode electrically connected to the capacitor;

a third transistor having;

a fifth electrode electrically connected to the capacitor and the fourth electrode; and

a sixth electrode electrically connected to the first electrode;

a fourth transistor having;

a seventh electrode electrically connected to the second electrode and the capacitor; and

a eighth electrode electrically connected to the output terminal;

38. A semiconductor device according to claim 6, wherein any one of the rectifier circuit, the stabilizing circuit, the charge pump, the amplifier and the divider circuit comprises a thin film transistor formed over a substrate.

64. An IC card comprising the semiconductor device according to claim 6.

65. An ID tag, comprising the semiconductor device according to claim 6.

66. A wireless tag comprising the semiconductor device according to claim 6.

67. A wireless chip comprising the semiconductor device according to claim 6.

68. An ID chip comprising the semiconductor device according to claim 6.