Electronic unit, circuit design for the same, and production method

• US 7,483,275 B2
• Filed: 09/06/2002
• Issued: 01/27/2009
• Est. Priority Date: 10/18/2001
• Status: Expired due to Fees

• Current Assignee: PolyIC GmbH & Co. KG (Leonhard KURZ Stiftung & Company KG)
• Original Assignee: PolyIC GmbH & Co. KG (Leonhard KURZ Stiftung & Company KG)
• Inventors: Fix, Walter, Clemens, Wolfgang, Zapf, Jörg
• Primary Examiner(s): Dinh; Tuan T
• Application Number:
  US10/492,923
• Publication Number:
  US 20040256467A1
• Time in Patent Office: 2,335 Days
• Field of Search: 361736-737, 361760-766, 257/40, 257/213, 257/288, 257/528
• US Class Current: 361/760
• CPC Class Codes: H01L 2223/6677 for antenna, e.g. antenna included within housing of semiconductor device
• CPC Class Codes: H01L 25/16 the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H10K 10/46 Field-effect transistors, e.g. organic thin-film transistors [OTFT] H10K10/43 takes precedence
• CPC Class Codes: H10K 19/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic element specially adapted for rectifying, amplifying, oscillating or switching, covered by group H10K10/00
• CPC Class Codes: H10K 19/80 Interconnections, e.g. terminals

Abstract

A method for the production of an encapsulated and at least partly organic electronic device wherein the device comprises a combination of three groups of different electronic units or components which may be separate discrete structures arranged to be produced independently from one another electrically conductively interconnected, the groups including inorganic units, passive units and active units or active components such as antennae, diodes (rectifier diodes and/or light-emitting diodes), some of which units may be organic, e.g., organic transistors, and so on, and forming a resulting optimized circuit. The components of the three groups of units forming the resulting circuit are combined on a one piece flexible substrate film which can also serve as an encapsulation layer for the device.

Claims

1. An organic electronic device comprising:

a one piece flexible film substrate; and

at least three groups of electrical components each attached directly to the substrate to thereby form the device;

one group of the components comprising essentially inorganic units;

one group of the components comprising passive units; and

one group of the components comprising active units;

wherein

the group comprising passive units contains no active units or no active components and the group of active units essentially contains organic field-effect transistors, wherein the three groups comprise separate and discrete structures arranged to be assembled independently of one another, and are ohmically interconnected via electrically conductive tracks and contacts forming a circuit, through which the electrically conductive tracks run between passive and active units from one group to another on the substrate.

2. The organic electronic device in accordance with claim 1 wherein at least one of said electrically conductive tracks and contacts comprises an electrically conductive adhesive.

3. The organic device in accordance with claim 1 further including an RFID tag, inside the RFID tag are a sensor array and a photovoltaic cell coupled to the circuit, wherein the tag is arranged in a configuration comprising any one selected from the group consisting of wearable electronics, an active display, an electronic bar code, an electronic watermark, an electronic stamp, a bag tag and an electronic ticket.

4. The organic electronic device in accordance with claim 1 wherein the circuit comprises the following components:

an antenna , a first capacitor, a diode , and a modulation transistor, all of which being electrically coupled to and in front of an integrated circuit, in which a second and a third capacitor and an additional diode are switched in the circuit to supply current to the integrated circuit via the second capacitor, and where, at the same time, the additional diode prevents said modulation transistor from depriving said second capacitor with energy.

5. The organic device of claim 1 including an encapsulation film for encapsulating at least the interconnected groups.

6. A method to produce an organic electronic device comprising forming a circuit including forming and preassembling as separate discrete units in the circuit arranged to be assembled independently of one another at least one group of units with an antenna, a passive group of units and an active group of units, at least a portion of one of the passive groups and active groups comprising organic units, and then assembling the circuit through electrical interconnection of the individual groups of units directly onto a one piece substrate film;

including forming a capacitor on a flexible substrate film or encapsulation film, the forming the capacitor step comprising;

forming ohmically conductive regions on the antenna, and forming an ohmically conductive polymeric region on the substrate or encapsulation film for subsequent metallization to create the capacitor comDrisincl said ohmically conductive polymeric region on the substrate or encaDsulation film and ohmically conductive regions on the antenna after assembling the substrate film and active and passive groups.

7. An organic electronic device comprising at least three groups of components:

one group comprising essentially inorganic units,

one group of passive units,

one group of active, units,

wherein

the group comprising passive units contains no active units or no active components and the group of active units essentially contains at least one organic field-effect transistor, wherein the three groups comprise structures arranged to be assembled independently of one another, wherein said units are interconnected via ohmically conductive electrical tracks on a flexible film substrate forming a circuit, in which circuit the electrical tracks run between passive and active units from one group to another;

and wherein the circuit comprises;

an antenna, a first capacitor, a diode, and a modulation transistor, the foregoing being ohmically coupled to and in front of an integrated circuit, in which a second and a third capacitor and an additional diode are switched in the circuit to supply current to the integrated circuit via the second capacitor, and where, at the same time, the additional diode prevents said modulation transistor from depriving said second capacitor with energy.

8. A method to produce an organic electronic device comprising:

forming a circuit including forming and preassembling as separate discrete units in the circuit and arranged to be assembled independently of one another at least one group of units with an antenna, a passive group of units and an active group of units, at least a portion of one of the passive groups and active groups comprising organic units, and then assembling the circuit through electrical interconnection of the individual groups of units directly on a one piece flexible substrate film; and

forming a capacitor on the flexible substrate film, the forming the capacitor step comprising;

forming ohmically conductive regions on the antenna, and forming an ohmically conductive polymeric region on the substrate for subsequent metallization to create the capacitor comprising said ohmically conductive polymeric region on the substrate and the ohmically conductive regions on the antenna after assembling the substrate film and active and passive groups.

9. A method of making an organic electronic device comprising:

forming a one piece flexible film substrate; and

forming at least three groups of electrical components each attached directly to the substrate to thereby form the device;

forming one group of the components comprising essentially inorganic Units;

forming one group of the components comprising passive units; and

forming one group of the components comprising active units;

wherein the forming of the group comprising passive units contains no active units or no active components and forming the group of active units essentially contains organic field-effect transistors, wherein the forming the three groups forms the three groups to comprise separate and discrete structures arranged to be assembled independently of one another, and are ohmically interconnected via electrically conductive tracks and contacts forming a circuit, through which the electrically conductive tracks run between passive and active units from one group to another on the substrate.