Method for producing an illuminant

• US 9,551,479 B2
• Filed: 07/03/2013
• Issued: 01/24/2017
• Est. Priority Date: 07/31/2012
• Status: Active Grant

• Current Assignee: OSRAM OLED GMBH (Ams-Osram AG)
• Original Assignee: Osram Opto Semiconductors GmbH (Ams-Osram AG)
• Inventors: Groetsch, Stefan, Singer, Frank
• Primary Examiner(s): Toledo, Fernando L
• Assistant Examiner(s): GRAY, AARON J
• Application Number:
  US14/418,924
• Publication Number:
  US 20150167938A1
• Time in Patent Office: 1,301 Days
• Field of Search: 438/26, 257/99, 257/778, 257/676, 257/797, 257/E33.057
• US Class Current: 1/1
• CPC Class Codes: F21S 41/148 the main emission direction of the LED being perpendicular to the optical axis
• CPC Class Codes: F21S 41/151 arranged in one or more lines
• CPC Class Codes: F21S 41/19 Attachment of light sources or lamp holders achieving variable light distribution by movable light sources F21S41/657
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/19 Attachment of light sources or lamp holders
• CPC Class Codes: F21S 45/47 Passive cooling, e.g. using fins, thermal conductive elements or openings
• CPC Class Codes: F21V 19/0015 Fastening arrangements intended to retain light sources
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: H01L 2224/48 of an individual wire connector
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• 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: H01L 33/486 adapted for surface mounting

Abstract

A method for producing an illuminant is specified, in which a positioning device (3) holds an optoelectronic semiconductor component (1) inside a tolerance range (4) on the upper side of a connection carrier (2) during the mechanical fixation and electrical connecting of the optoelectronic semiconductor component (1) to the connection carrier (2).

Claims

1. A method for producing a light-emitting means, comprising the following steps:

providing an optoelectronic semiconductor component part comprising a housing body, at least one light-emitting diode chip, which is arranged in the housing body, and at least two electrical connection points, which are arranged on a lower side of the optoelectronic semiconductor component part;

providing a connection carrier comprising at least two contact points, which are arranged on an upper side of the connection carrier;

providing a positioning apparatus, which is in direct contact with the connection carrier and/or the optoelectronic semiconductor component part;

providing a connecting means between the connection points of the optoelectronic semiconductor component part and the contact points of the connection carrier; and

mechanically fastening and electrically connecting the optoelectronic semiconductor component part on the connection carrier by means of the connecting means,

wherein the positioning apparatus keeps the optoelectronic semiconductor component part within a tolerance range on the upper side of the connection carrier during the mechanical fastening and electrical connection, and

wherein at least one component of the positioning apparatus is removed once the optoelectronic semiconductor component part has been mechanically fastened and electrically connected on the connection carrier.

2. The method according to claim 1, wherein the tolerance range is completely in a plane which runs parallel to the main plane of extent of the lower side, facing the connection carrier, of the optoelectronic semiconductor component part.

3. The method according to claim 1, wherein the tolerance range has an area which is greater than the maximum cross-sectional area of the optoelectronic semiconductor component part on the lower side, facing the connection carrier, of the optoelectronic semiconductor component part in a plane parallel to the plane in which the tolerance range lies.

4. The method according to claim 1, wherein the positioning apparatus comprises at least two components, which are formed and/or fastened on the connection carrier and/or on the optoelectronic semiconductor component part.

5. The method according to claim 1, wherein the positioning apparatus comprises at least three pins, which are in direct contact with the connection carrier and are mechanically stable connected to the connection carrier,

wherein the pins protrude beyond the connection carrier on its upper side facing the optoelectronic semiconductor component part,

wherein the pins delimit the tolerance range in lateral directions, and

wherein the optoelectronic semiconductor component part, after the mechanical fastening and electrical connection, is in direct contact with at most two of the pins.

6. The method according to claim 1, wherein the positioning apparatus comprises at least two pins and at least two cutouts,

wherein one cutout is uniquely assigned to each pin,

wherein one of the pins is in direct contact with the optoelectronic semiconductor component part and is mechanically stable connected to the optoelectronic semiconductor component part, and the assigned cutout is arranged in the connection carrier, or one of the pins is in direct contact with the connection carrier and is mechanically stable connected to the connection carrier, and the associated cutout is arranged in the optoelectronic semiconductor component part, and

wherein at least for one pair comprising pin and assigned cutout, the cutout has, at least at points, a greater diameter than the pin.

7. The method according to claim 1, wherein the positioning apparatus comprises a frame, which protrudes beyond the connection carrier on its upper side facing the optoelectronic semiconductor component part,

wherein the frame comprises a spring element, which is in contact with the optoelectronic semiconductor component part, and

wherein the frame delimits the tolerance range in lateral directions.

8. The method according to claim 1, wherein the at least one component of the positioning apparatus is mechanically stable connected to the connection carrier or the optoelectronic semiconductor component part prior to the removal, and

wherein the connection carrier or the optoelectronic semiconductor component part has separation traces after the removal which originate from the removal of the at least one component of the positioning apparatus.

9. The method according to claim 1, wherein owing to the removal of the at least one component of the positioning apparatus, at least one cutout in the optoelectronic semiconductor component part or in the connection carrier is exposed, and

wherein the at least one exposed cutout is used for adjusting and/or mechanically fastening an optical element.

10. The method according to claim 1, further comprising the following steps:

providing a heat sink; and

mechanically fastening the connection carrier to the heat sink on the lower side, facing the optoelectronic semiconductor component part, of the connection carrier.

11. The method according to claim 10, wherein the mechanical fastening of the connection carrier on the heat sink is performed at least partially by means of at least one component of the positioning apparatus.

12. The method according to claim 11, wherein a pin of the positioning apparatus is brought into direct contact with the heat sink.

13. The method according to claim 10, wherein the optoelectronic semiconductor component part and/or the connection carrier and/or the heat sink comprises, in addition to the components of the positioning apparatus, at least one fastening means, which is adjusted with respect to the positioning apparatus, and

wherein an optical element is fastened mechanically relative to the semiconductor component part and/or relative to the connection carrier and/or relative to the heat sink by means of the fastening means.

14. A method for producing a light-emitting means, comprising the following steps:

providing an optoelectronic semiconductor component part comprising a housing body, at least one light-emitting diode chip, which is arranged in the housing body, and at least two electrical connection points, which are arranged on a lower side of the optoelectronic semiconductor component part;

providing a connection carrier comprising at least two contact points, which are arranged on an upper side of the connection carrier;

providing a positioning apparatus, which is in direct contact with the connection carrier and/or the optoelectronic semiconductor component part;

providing a connecting means between the connection points of the optoelectronic semiconductor component part and the contact points of the connection carrier; and

mechanically fastening and electrically connecting the optoelectronic semiconductor component part on the connection carrier by means of the connecting means,

wherein the positioning apparatus keeps the optoelectronic semiconductor component part within a tolerance range on the upper side of the connection carrier during the mechanical fastening and electrical connection, and

wherein during the mechanical fastening and electrical connection the optoelectronic semiconductor component part floats on the connecting means in such a way that it abuts the positioning apparatus.

15. A method for producing a light-emitting means, comprising the following steps:

providing an optoelectronic semiconductor component part comprising a housing body, at least one light-emitting diode chip, which is arranged in the housing body, and at least two electrical connection points, which are arranged on a lower side of the optoelectronic semiconductor component part;

providing a connection carrier comprising at least two contact points, which are arranged on an upper side of the connection carrier;

providing a positioning apparatus, which is in direct contact with the connection carrier and/or the optoelectronic semiconductor component part;

providing a connecting means between the connection points of the optoelectronic semiconductor component part and the contact points of the connection carrier; and

mechanically fastening and electrically connecting the optoelectronic semiconductor component part on the connection carrier by means of the connecting means,

wherein the positioning apparatus keeps the optoelectronic semiconductor component part within a tolerance range on the upper side of the connection carrier during the mechanical fastening and electrical connection,

wherein the positioning apparatus comprises at least two pins and at least two cutouts,

wherein at least one of the pins is an oval pin, and

wherein during positioning of the oval pin in the corresponding cutout a play results, which causes the tolerance range during connection of the optoelectronic semiconductor component part and the connection carrier.