Thin film battery on an integrated circuit or circuit board and method thereof

• US 9,634,296 B2
• Filed: 02/26/2014
• Issued: 04/25/2017
• Est. Priority Date: 08/09/2002
• Status: Active Grant

• Current Assignee: Sapurast Research LLC
• Original Assignee: Sapurast Research LLC
• Inventors: Johnson, Raymond R., Snyder, Shawn W., Brantner, Paul C., Bradow, Timothy J., Neudecker, Bernd J.
• Primary Examiner(s): Cullen, Sean P
• Application Number:
  US14/191,069
• Publication Number:
  US 20140295246A1
• Time in Patent Office: 1,154 Days
• Field of Search: 429149, 429162, 429124, 429163, 296232, 296234
• CPC Class Codes: H01L 23/58 Structural electrical arrangements for semiconductor devices not otherwise provided for , e.g. in combination with batteries H01L23/49593, H01L23/49596 take precedence
• 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: H01M 10/0436 Small-sized flat cells or batteries for portable equipment
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/0562 Solid materials
• CPC Class Codes: H01M 10/0585 of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 2300/0068 inorganic
• CPC Class Codes: H01M 50/534 characterised by the material of the leads or tabs
• CPC Class Codes: H01M 6/40 Printed batteries , e.g. thin film batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/4911 including sealing
• CPC Class Codes: Y10T 29/49114 including adhesively bonding

Abstract

The present invention relates to flexible thin film batteries on semiconducting surface or the conductive or insulating packaging surface of a semiconductor device and methods of constructing such batteries. Electrochemical devices may be glued to a semiconducting surface or the conductive or insulating packaging surface of a semiconductor device or deposited directly thereon. The invention also relates to flexible thin film batteries on flexible printed circuit board where the electrochemical devices may also be glued or deposited on the flexible printed circuit board.

Claims

1. An integrated circuit including a battery, comprising:

a semiconductor device having a surface;

a bonding layer coupled with the surface of the semiconductor device, the bonding layer comprising a first embedded conductor and a second embedded conductor;

a battery cell structure in selective electrical contact with the surface of the semiconductor device via the first embedded conductor; and

a first electrical contact having a lower surface to which the battery cell structure is directly attached, wherein the bonding layer and the battery cell structure are sandwiched between the surface of the semiconductor device and the lower surface of the first electrical contact, wherein the surface of the semiconductor device is in selective electrical contact with the first electrical contact via the second embedded conductor being in direct contact with the lower surface of the first electrical contact to which the battery cell structure is directly attached.

2. The integrated circuit of claim 1, wherein both the first embedded conductor and the second embedded conductor directly contact the surface of the semiconductor device.

3. The integrated circuit of claim 1, wherein the first electrical contact comprises an encapsulate metal.

4. The integrated circuit of claim 1, wherein the bonding layer comprises a material selected from a group consisting of an adhesive material, an insulating material, plastic, glass, reinforcement materials, and fiberglass.

5. The integrated circuit of claim 1, wherein each of the first embedded conductor and the second embedded conductor is selected from a group consisting of a tab, a wire, a metal strip, a metal ribbon, multiple wires, multiple metal strips, multiple metal ribbons, a wire mesh, a perforated metal, a metal coating applied to an adhesive layer, and a disk.

6. The integrated circuit of claim 1, wherein the battery cell structure is deposited on the first electrical contact.

7. The integrated circuit of claim 1, wherein the surface of the semiconductor device is selected from a group consisting of a semiconducting surface, a conductive surface, and an insulating packaging surface.

8. The integrated circuit of claim 7, wherein the surface of the semiconductor device acts as an encapsulate of the battery cell structure.

9. The integrated circuit of claim 1, wherein the first embedded conductor and the second embedded conductor are woven within the bonding layer.

10. The integrated circuit of claim 9, wherein the bonding layer comprises a slit within which the first embedded conductor is woven.

11. A method of manufacturing a battery on a first electrical contact comprising:

creating a selectively conductive bonding layer, the bonding layer comprising a first embedded conductor and a second embedded conductor;

coupling the bonding layer with an upper horizontal surface of a semiconductor device, wherein both the first embedded conductor and the second embedded conductor directly contact the upper horizontal surface of the semiconductor device;

directly attaching a first side of a battery cell structure to a lower surface of the first electrical contact; and

coupling a second side of the battery cell structure with the bonding layer, wherein the second side of the battery cell structure is in direct contact with the first embedded conductor; and

wherein the upper horizontal surface of the semiconductor device is in selective electrical contact with the first electrical contact via the second embedded conductor being in direct contact with the lower surface of the first electrical contact to which the first side of the battery cell structure is directly attached.

12. The method of claim 11, wherein the upper horizontal surface of the semiconductor device, with which the bonding layer is coupled, is one of a semiconducting surface, a conductive surface or an insulating surface.

13. The method of claim 11, wherein directly attaching the first side of the battery cell structure to the lower surface of the first electrical contact comprises depositing the battery cell structure on the first electrical contact.