RF PRINTING RECTIFIER USING ROLL TO ROLL PRINTING METHOD

• US 20110012809A1
• Filed: 04/03/2008
• Published: 01/20/2011
• Est. Priority Date: 04/03/2008
• Status: Abandoned Application

• Current Assignee: Paru Co., Ltd.
• Original Assignee: Paru Co., Ltd.
• Inventors: Kim, Jun Soek, Kang, Hwi Won, Lim, Chae Min, Kim, Jae Young, Lim, Nam Soo, Cho, Gyou Jin
• Application Number:
  US12/933,570
• Publication Number:
  US 20110012809A1
• Time in Patent Office: Days
• US Class Current: 343/904
• 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 1/16 incorporating printed electric components, e.g. printed resistor, capacitor, inductor
• CPC Class Codes: H05K 3/12 using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns

Abstract

Disclosed herein is an RF printed rectifier manufactured using a roll to roll printing process, comprising: a printed antenna manufactured using conductive ink through the roll to roll printing process; a printed diode manufactured using the conductive ink through the roll to roll printing process; and a printed capacitor manufactured using the conductive ink through the roll to roll printing process, wherein an alternating current is input through the printed antenna, and a direct current is output through the printed diode and capacitor.

Claims

1. An RF printed rectifier manufactured using a roll to roll printing process, comprising:

a printed antenna manufactured using conductive ink through the roll to roll printing process;

a printed diode manufactured using the conductive ink through the roll to roll printing process; and

a printed capacitor manufactured using the conductive ink through the roll to roll printing process,

wherein an alternating current is input through the printed antenna, and a direct current is output through the printed diode and capacitor.

2. The RF printed rectifier according to claim 1, wherein the conductive ink includes silver nano ink, and the silver nano ink contains 10˜

70 wt % of silver and has a viscosity of 300˜

1000 cP.

3. The RF printed rectifier according to claim 1, wherein the printed diode is manufactured using semiconductor ink prepared by stirring a semiconductor nanowire and a polymer material and conductor ink having a low work function which can form a rectifying contact with the semiconductor ink due to the difference in work function between the conductor ink and a semiconductor material, in addition to the conductive ink.

4. The RF printed rectifier according to claim 3, wherein the semiconductor nanowire is selected from among a ZnO nanowire, GaAs nanowire, InAs nanowire, and Si nanowire.

5. The RF printed rectifier according to claim 4, wherein the ZnO nanowire is prepared by synthesizing zinc (Zn) acetate, cobalt (Co) acetate and trioctylamine at a temperature of 200˜

500°

C. and a pressure of 1˜

400 atm.

6. The RF printed rectifier according to claim 4, wherein the GaAs nanowire is prepared by synthesizing As(SiMe₃)₃, Bi Nanocrystal, toluene, oleic acid, trioctylamine and GaCl₃ under a nitrogen atmosphere.

7. The RF printed rectifier according to claim 4, wherein the InAs nanowire is prepared by synthesizing As(SiMe₃)₃, Bi Nanocrystal, toluene, oleic acid, trioctylamine and InCl₃ under a nitrogen atmosphere.

8. The RF printed rectifier according to claim 4, wherein the Si nanowire is prepared using gold nanoparticles coated with monophenylsilane and dodecanthiol.

9. The RF printed rectifier according to claim 3, wherein the polymer material is selected from among polyaniline, PEDOT, polypyrrole, MEH-PPV, and P3HT.

10. The RF printed rectifier according to claim 3, wherein the conductor ink is selected from among Ag—

Cs alloy, Ag—

Al alloy, Ag—

Mg alloy, and Ag—

Ca alloy, which are capable of being made into ink.

11. The RF printed rectifier according to claim 1, wherein the printed capacitor is manufactured using dielectric ink prepared by stirring an inorganic substance and a polymer material, in addition to the conductive ink.

12. The RF printed rectifier according to claim 11, wherein the polymer material is selected from among acrylate polymers, epoxy polymers, and phenol polymers.

13. The RF printed rectifier according to claim 11, wherein the inorganic substance is selected from among TiO₂, SiO₂, Al₂O₃, Nb₂O₅, BaTiO₃, Si₃N₄, and Ta₂O₅.

14. A method of manufacturing an RF printed rectifier using a roll to roll printing process, comprising:

manufacturing a printed antenna using conductive ink through the roll to roll printing process;

manufacturing a plurality of printed diodes using the conductive ink through the roll to roll printing process;

manufacturing a plurality of printed capacitors using the conductive ink through the roll to roll printing process;

printing a wiring for connecting the printed antenna, the plurality of printed diodes and the plurality of printed diodes to each other, using the conductive ink, wherein the RF printed rectifier is manufactured such that an alternating current is input through the printed antenna, and a direct current is output through the printed diode and capacitor.

15. The method of manufacturing an RF printed rectifier according to claim 14, wherein the manufacturing a plurality of printed diodes comprises:

printing a lower electrode using the conductive ink through the roll to roll printing process;

printing a semiconductor layer on the lower electrode using semiconductor ink prepared by stirring a semiconductor nanowire and a polymer material; and

printing an upper electrode using conductor ink having a low work function which can form a rectifying contact with the semiconductor ink due to the difference in work function between the conductor ink and a semiconductor material.

16. The method of manufacturing an RF printed rectifier according to claim 14, wherein the manufacturing a plurality of printed capacitors comprises:

printing a lower electrode using the conductive ink through the roll to roll printing process;

printing a dielectric layer on the lower electrode using dielectric ink prepared by stirring an inorganic substance and a polymer material; and

printing an upper electrode on the dielectric layer using the conductive ink through the roll to roll printing process.