Base of LED

• US 20040173804A1
• Filed: 05/16/2003
• Published: 09/09/2004
• Est. Priority Date: 03/06/2003
• Status: Active Grant

• Current Assignee: Sun Rich Opto Technology Co., Ltd.
• Original Assignee: San-Hua Yu
• Inventors: Yu, San-Hua
• Granted Patent: US 6,864,567 B2
• Time in Patent Office: Days
• US Class Current: 257/81
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/48247 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/12041 LED
• CPC Class Codes: H01L 2924/15156 Side view
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
• CPC Class Codes: H01L 33/642 characterized by the shape
• CPC Class Codes: H01L 33/647 the elements conducting electric current to or from the semiconductor body

Abstract

A base of LED includes a negative pole seat and a positive pole seat. The negative pole seat is made of conductive material with a flat negative pole plate at a lower outer side thereof, an integral negative pole body at an inner side thereof, multiple upright negative pole seat grooves at two lateral sides thereof and a negative pole recess at the top thereof respectively. The positive pole seat also is made of conductive material with a flat positive pole plate at the lower outer side thereof, an integral positive pole body at the inner side thereof, multiple seat grooves extending upright from the bottom at two lateral sides thereof. A crystal grain is located at the negative pole recess and a connecting wire at both ends thereof joined to the positive pole seat and the crystal grain and the negative pole plate and the positive pole plate are adhered to circuit of a circuit board to form a close circuit.

Claims

1. A base of LED, comprising:

a negative pole seat, being made of conductive material, providing a flat negative pole plate at a lower outer side thereof, having an integral negative pole body at an inner side thereof, providing a plurality of upright negative pole seat grooves at two lateral sides thereof and providing a negative pole recess at a top thereof;

a positive pole seat, being made of conductive material, providing a flat positive pole plate at a lower outer side thereof, having an integral positive pole body at an inner side thereof, providing a plurality of seat grooves extending upright from a bottom thereof at two lateral sides thereof;

whereby, as long as a crystal grain is located at the negative pole recess and a connecting wire at both ends thereof joined to the positive pole seat and the crystal grain with the negative pole plate and the positive pole plate being adhered to circuit of a circuit board, a close circuit can be formed.

2. The base of LED as defined in claim 1, wherein a material used by the negative pole plate and a material used by the positive pole plate are related to each other.

3. The base of LED as defined in claim 1, wherein an integral piece is formed for the negative pole seat and the positive pole seat and the integral piece is cut to separate the negative pole seat from the positive pole seat.

4. The base of LED as defined in claim 1, wherein the negative pole body and the positive pole body at a respective bottom thereof are higher than the negative pole plate and the positive pole plate at a respective bottom thereof.

5. The base of LED as defined in claim 1, wherein the negative pole body under the negative pole recess thereof is provided with a blind hole from a bottom thereof.

6. The base of LED as defined in claim 1, wherein the negative pole body and the positive pole body at a respective side opposite to each other has a flat shape or a curvy shape.

7. The base of LED as defined in claim 1, wherein the negative pole body and the positive pole body are fabricated by way of pressing, free waxing, casting, etching, powder metallurgy, die casting, extruding, forging, stamping or pre-cast forming.

8. The base of LED as defined in claim 1, wherein the negative pole body and the positive pole body can be made of copper, iron, aluminum or any other conductive metals.