Optoelectronic component with a lead frame section

Patent metadata

Field	Value
Publication number	US-10756245-B2
Application number	US-201716079749-A
Country	US
Kind code	B2
Filing date	Feb 24, 2017
Priority date	Feb 25, 2016
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

An optoelectronic component has at least one lead frame section, wherein an optoelectronic element is arranged on the lead frame section, a mold material is applied at least on a first face of the lead frame section and adhesively connected to the lead frame section by the first face, the lead frame section consists of a predetermined material, a part of the first face of the lead frame section is provided with a coating, a region of the first face is free of the coating, and the mold material connects to the material of the lead frame section in the free region.

First claim

The invention claimed is:

1. An optoelectronic component having at least one lead frame section, wherein an optoelectronic element is arranged on the lead frame section, a mold material is applied at least on a first face of the lead frame section and adhesively connected to the lead frame section by the first face, the lead frame section consists of a predetermined material, a first part of the first face of the lead frame section is provided with a coating, a second part of the first face is a free region of the first face that is free of the coating, the mold material directly connects to the material of the lead frame section in the free region of the first face, and the mold material directly connects to the coating in the first part of the first face.

2. The component according to claim 1 , wherein the free region subdivides the coating into a central region and an outer border region, and the element is arranged in the central region.

3. The component according to claim 1 , wherein the first face is formed annularly on an upper side of the lead frame section, the mold material is formed annularly on the first face and delimits a recess, the element is arranged in the recess, the coating is arranged on the upper side of the lead frame section, the free region annularly encloses the element and is arranged under the mold material, and the free region separates the central region of the coating from an annular outer border region of the coating, the mold material directly connects to the material of the lead frame section in the annular free region of the first face, the mold material directly connects to the coating in a part of the central region of the coating which is part of the first face, the mold material directly connects directly to at least a part of the annular outer border region of the coating.

4. The component according to claim 1 , wherein the first face is formed partially annularly on an upper side of the lead frame section and adjoins with ends a side edge of the lead frame section, the mold material is formed partially annularly on the lead frame section and bounds a part of a recess, the coating is arranged on the upper side of the lead frame section, the element is arranged on a central region of the coating in the recess, the free region partially annularly encloses the element and is arranged under the mold material, and the free region separates the central region of the coating from a partially annular outer border region of the coating.

5. The component according to claim 1 , wherein a second lead frame section is provided, the second lead frame section is arranged at a distance from the first lead frame section, the two lead frame sections are arranged facing toward one another respectively with a first side edge, the two lead frame sections connect to one another by mold material, the first face is formed partially annularly on the upper side of the first lead frame section, ends of the first face adjoin the first side edge of the lead frame section, the mold material is formed partially annularly on the first face on the first lead frame section, the coating is arranged on the upper side of the first lead frame section, the free region of the coating of the first lead frame section separates a first central region from an outer border region of the coating, the second lead frame section has a coating on the upper side, the coating of the second lead frame section has a free region, the free region separates a second central region of the coating from an outer border region of the coating, the mold material is arranged partially annularly on the upper side of the second lead frame section, the free region is arranged under the mold material, the free region is guided annularly from a first side edge of the second lead frame section around the second central region back to the first side edge, the mold material is formed annularly and encloses a recess, and the recess extends over subfaces of the upper sides of the first and the second lead frame section.

6. The component according to claim 1 , wherein a second lead frame section is provided, the second lead frame section is arranged at a distance from the first lead frame section, the two lead frame sections are arranged facing toward one another respectively with a first side edge, the two lead frame sections connect to one another by mold material, the first face is formed partially annularly on the upper side of the first lead frame section, ends of the first face adjoin the first side edge of the lead frame section, the mold material is formed partially annularly on the first face on the first lead frame section, the coating is arranged on the upper side of the first lead frame section, the free region of the coating of the first lead frame section separates a first central region from an outer border region of the coating, the second lead frame section has a coating on the upper side, the coating of the second lead frame section has a free region, the free region separates a second central region of the coating from an outer border region of the coating, the mold material is arranged partially annularly on the upper side of the second lead frame section, the free region is arranged under the mold material, the free region is guided annularly from a first side edge of the second lead frame section around the second central region back to the first side edge, the mold material is formed annularly and encloses a recess, the recess extends over subfaces of the upper sides of the first and the second lead frame section, and the free regions of the coating of the first and/or of the second lead frame section are formed partially annularly or in a U-shape, or in the shape of an angled U-shape.

7. The component according to claim 1 , wherein the lead frame section has a coating on a side edge, a free region is formed in the coating of the side edge, and the mold material covers the side edge.

8. The component according to claim 1 , wherein a second lead frame section is provided, the second lead frame section is arranged at a distance from the first lead frame section, the two lead frame sections are arranged facing toward one another respectively with a first side edge, the two lead frame sections connect to one another by mold material, the first face is formed partially annularly on the upper side of the first lead frame section, ends of the first face adjoin the first side edge of the lead frame section, the mold material is formed partially annularly on the first face on the first lead frame section, the coating is arranged on the upper side of the first lead frame section, the free region of the coating of the first lead frame section separates a first central region from an outer border region of the coating, the second lead frame section has a coating on the upper side, the coating of the second lead frame section has a free region, the free region separates a second central region of the coating from an outer border region of the coating, the mold material is arranged partially annularly on the upper side of the second lead frame section, the free region is arranged under the mold material, the free region is guided annularly from a first side edge of the second lead frame section around the second central region back to the first side edge, the mold material is formed annularly and encloses a recess, the recess extends over subfaces of the upper sides of the first and the second lead frame section, the lead frame section has a coating on a first side edge, and a free region is formed in the coating of the first side edge.

9. The component according to claim 1 , wherein a second lead frame section is provided, the second lead frame section is arranged at a distance from the first l

Assignees

• Osram Oled Gmbh

Inventors

• Wittmann Michael
• Brandl Martin

Classifications

• H10W90/756

  between a chip and a stacked lead frame, conducting package substrate or heat sink · CPC title

• H10H20/0364

  of interconnections · CPC title

• H10H20/036

  of packages · CPC title

• H10H20/034

  of coatings · CPC title

• H10H20/8506

  Containers · CPC title