Method for producing a coil and electronic device

• US 10,446,314 B2
• Filed: 07/06/2015
• Issued: 10/15/2019
• Est. Priority Date: 11/02/2012
• Status: Active Grant

• Current Assignee: Hahn-Schickard-Gesellschaft für angewandte Forschung e.V.
• Original Assignee: Hahn-Schickard-Gesellschaft für angewandte Forschung e.V.
• Inventors: Kostelnik, Jan, Schreivogel, Alina, Keck, Jurgen, Giousouf, Ing. Metin, Reininger, rer. nat. Thomas, Kiessling, Ing. Albert, Wolf, Jurgen
• Primary Examiner(s): Nguyen, Tuyen T
• Application Number:
  US14/792,344
• Publication Number:
  US 20150310982A1
• Time in Patent Office: 1,562 Days
• Field of Search: 336 65, 336200, 336232
• CPC Class Codes: B33Y 10/00 Processes of additive manufacturing
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing
• CPC Class Codes: H01F 17/0006 Printed inductances printed coils for dynamo-electric machines H02K3/26; printed circuits H05K
• CPC Class Codes: H01F 2017/0066 with a magnetic layer
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 27/303 Clamping coils, windings or parts thereof together
• CPC Class Codes: H01F 27/402 Association of measuring or protective means
• CPC Class Codes: H01F 41/042 by thin film techniques
• CPC Class Codes: H01F 41/043 by thick film techniques
• CPC Class Codes: H01F 5/00 Coils superconducting coils H01F6/06; fixed inductances of the signal type H01F17/00
• CPC Class Codes: H03K 17/9505 Constructional details
• CPC Class Codes: H03K 2017/9527 Details of coils in the emitter or receiver; Magnetic detector comprising emitting and receiving coils
• CPC Class Codes: H05K 1/165 incorporating printed inductors
• CPC Class Codes: H05K 2201/086 for inductive purposes, e.g. printed inductor with ferrite core
• CPC Class Codes: H05K 2201/09036 Recesses or grooves in insulating substrate recess in metallic substrate H05K2201/09745
• CPC Class Codes: H05K 2203/1344 Spraying small metal particles or droplets of molten metal
• CPC Class Codes: H05K 3/125 by ink-jet printing
• CPC Class Codes: H05K 3/1258 by using a substrate provided with a shape pattern, e.g. grooves, banks, resist pattern
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor

Abstract

The invention relates to a method for producing a coil integrated in a substrate or applied to a substrate, wherein the coil has first winding portions, which each have first ends and second ends, and wherein the coil has second winding portions and third winding portions, wherein each two of the first ends are electrically interconnected by the second winding portions and two corresponding second ends of the first winding portions are electrically interconnected by the third winding portions, such that coil windings of the coil are formed hereby, wherein at least the first winding portions are applied by means of a 3D printing method, wherein this is aerosol jet or inkjet printing, for example.

Claims

1. An electronic device comprising at least one coil integrated in a substrate or applied to a substrate, the at least one coil including first winding portions, which each have first ends and second ends, the at least one coil having second winding portions, third winding portions, and a coil core, wherein each two of the first ends are electrically interconnected by the second winding portions and two corresponding second ends of the first winding portions are electrically interconnected by the third winding portions to form the at least one coil, the electronic device produced in accordance with a method comprising:

printing, using a three-dimensional printing technique, the first winding portions and the second winding portions; and

printing, using the three-dimensional printing technique, the third winding portions on the coil core to form the at least one coil having an axis that runs parallel to a surface of the substrate; and

wherein

the three-dimensional printing technique comprises at least one of aerosol jet printing and inkjet printing.

2. The electronic device of claim 1, wherein said device comprises at least one of a sensor and an actuator.

3. The electronic device of claim 2, wherein the sensor comprises at least one of a pressure sensor, force sensor, acceleration sensor, and a magnetic field sensor.

7. The electronic device of claim 1, wherein the at least one coil encloses a magnetic core, said method further comprising:

forming said magnetic core from a paste comprising ferromagnetic particles, wherein said forming further comprises curing said paste.

8. The electronic device of claim 7, wherein said curing further comprises applying ultrasound to said paste during said curing.

4. An electronic device comprising:

an electronic printed circuit board including at least one coil integrated in or applied to the printed circuit board, the at least one coil including;

a coil core;

first winding portions, which each have first and second ends;

second winding portions; and

third winding portions;

wherein each two of the first ends of the first winding portions are electrically interconnected by the second winding portions and wherein two corresponding second ends of the first winding portions are electrically interconnected by the third winding portions, with the result that coil windings of the at least one coil are formed hereby, the coil having an axis that runs parallel to a surface of a substrate;

wherein the first winding portions and the second winding portions are applied by means of a three dimensional (3D) printing method;

wherein the third winding portions are applied by means of the 3D printing method on the coil core; and

wherein the 3D printing method includes at least one of aerosol jet printing and inkjet printing.

5. The electronic device of claim 4, wherein said device comprises at least one of a sensor and an actuator.

6. The electronic device of claim 5, wherein the sensor comprises at least one of a pressure sensor, force sensor, acceleration sensor, and a magnetic field sensor.

9. The electronic device of claim 4, wherein the at least one coil is configured to enclose a magnetic core, said magnetic core formed by curing a paste comprising ferromagnetic particles.

10. The electronic device of claim 9, wherein said magnetic core is formed by applying ultrasound to said paste during said curing of said paste.