Electronic component and its manufacturing method

• US 5,446,428 A
• Filed: 10/12/1993
• Issued: 08/29/1995
• Est. Priority Date: 10/12/1992
• Status: Expired due to Term

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Itou, Makoto, Nakajima, Yoshinobu, Kumeji, Yasushi, Nishimura, Seiichi
• Primary Examiner(s): Ham, Seungsook
• Application Number:
  US08/135,291
• Time in Patent Office: 686 Days
• Field of Search: 333/177, 333/181, 333/185, 336/223, 336/225, 336/205
• US Class Current: 333/185
• CPC Class Codes: H01F 2017/048 with encapsulating core, e.g. made of resin and magnetic powder
• CPC Class Codes: H01F 27/022 Encapsulation
• CPC Class Codes: H01F 27/2847 Sheets; Strips H01F27/2866 takes precedence
• CPC Class Codes: H03H 3/00 Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
• CPC Class Codes: H03H 7/0115 comprising only inductors and capacitors H03H7/075, H03H7/09, H03H7/12, H03H7/13 take precedence
• CPC Class Codes: Y10S 425/033 Magnet
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor
• CPC Class Codes: Y10T 29/49076 From comminuted material
• CPC Class Codes: Y10T 29/49121 Beam lead frame or beam lead device

Abstract

An electronic component comprises an inductive element which includes a pair of zigzag parts, a pair of first terminals connected to one side of the zigzag parts, a connection part connected to the other side of the zigzag parts, an electrode disposed in the middle of the connection part, a second terminal provided on the extensional position of the electrode, and an exterior mold having a gap in the middle in order to expose the fronts of electrode and second terminal.

Claims

1. An electronic component comprising:

a three dimensional member including

(a) an inductive element having a pair of zigzag parts, said zigzag parts including

(1) a pair of first L-shaped horizontal parts,

(2) two upward parts each coupled respectively to one of said pair of first L-shaped horizontal parts,

(3) a pair of second L-shaped horizontal parts each coupled to a respective one of said pair of upward parts, and

(4) a pair of downward parts each coupled to a respective one of said pair of second L-shaped horizontal parts, and

(b) a pair of first terminals each connected to one side of a respective one of the pair of zigzag parts,

(c) a connection part connected to another side of the pair of zigzag parts,

(d) an electrode coupled to the connection part, and

(e) a second terminal part, and

an exterior mold formed on said inductive element, said exterior mold having an opening which exposes portions of said electrode and said second terminal.

2. An electronic component according to claim 1, further including a capacitor disposed within the opening of the exterior mold in contact with the electrode and the second terminal, forming a gap between said capacitor and the exterior mold.

3. An electronic component according to claim 1, wherein the opening is formed between the pair of zigzag parts to lower magnetic coupling of the electronic component.

4. An electronic component according to claim 1, wherein the exterior mold comprises a resin mixing magnetic powder.

5. An electronic component according to claim 1, wherein a supporting element is coupled to each of the pair of zigzag parts and to the exterior mold.