The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
Nov. 13, 1998
Armand B. Perduijn, Eindhoven, NL;
Gibbo J. Abrahamse, Eindhoven, NL;
Edwin M. Wolterink, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An opto-electronic element ( ) is mounted on a substrate ( ) comprising an electric circuit ( ) with an electrically conducting layer ( ). The opto-electronic element ( ) has a body ( ) for emitting light in a pre-selected wavelength range and is provided with current conductors ( ) which contact the conducting layer ( ). According to the invention, an adhesive material ( ) is used to mount the opto-electronic element ( ) on the substrate ( ) with clearance with respect to the substrate ( ), the body ( ) contacting the substrate ( ) via the adhesive material ( ). Preferably, the adhesive material ( ) is a heat-conducting material which serves to cool the body ( ) during operation. In order to make a reliable interconnection, the geometry of the current conductors ( ) is optimized in such a way that a small tensile force (order of magnitude 1 N) is present in a weld between the current conductors ( ) and the conducting layer ( ). The tensile force ensures that the opto-electronic element ( ) is pressed into the adhesive material ( ). The small tensile force is obtained by calibrating the current conductor ( ) during a “press” step in the laser-welding process.