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Laser-based termination of miniature passive electronic components



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Patent 7378337
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Document Number
US Patent 7378337
Issued Date
May 27, 2008
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Abstract
Terminating the ends of passive electronic components entails applying a laser-removable coating to one or both of the opposed major surfaces of a substrate. A UV laser beam having a spot size and an energy distribution sufficient to remove the laser-removable coating from multiple selected regions of at least one of the major surfaces to which the laser-removable coating was applied is directed for incidence on the substrate. Relative motion between the UV laser beam and substrate effects removal of sufficient amounts of laser-removable coating to expose the multiple selected regions. The substrate is then broken into multiple rowbars or individual components, each of which includes side margins. An electrically conductive material is applied to the side margins to form electrically conductive interconnects between portions of the side margins spatially aligned with the multiple selected regions.
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Number of Claims:
18
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Published
May 27, 2008
Application Number
11/437,117
Filed
May 18, 2006
US Classification
438/618  
Int'l Classification
H01L   21/4763   (20060101)  
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Attorney/Law Firm
Parent Case
RELATED APPLICATIONS This application is a continuation-in-part of U.S. patent application Ser. No. 10/982,316, filed Nov. 4, 2004, now U.S. Pat. 7,053,011 which claims the benefit of U.S. Provisional Patent Application No. 60/518,378, filed Nov. 4, 2003.
USPTO Field of Search
438/460   438/462   438/465   438/476   438/496   438/800   438/618  
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