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. 28, 2019
Filed:
Apr. 26, 2016
Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, 's-Gravenhage, NL;
Gari Arutinov, 's-Gravenhage, NL;
Edsger Constant Pieter Smits, 's-Gravenhage, NL;
Jeroen van den Brand, 's-Gravenhage, NL;
Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO, 's-Gravenhage, NL;
Abstract
An apparatus and method for soldering chips to a substrate. A substrate and two or more different chips having different heating properties are provided. A solder material is disposed between the chips and the substrate. A flash lamp generates a light pulse for heating the chips, wherein the solder material is at least partially melted by contact with the heated chips. A masking device is disposed between the flash lamp and the chips causing different light intensities in different areas of the light pulse passing the masking device thereby heating the chips with different light intensities. This may compensate the different heating properties to reduce a spread in temperature between the chips as a result of the heating by the light pulse.