Source: http://www.google.com/patents/US6204456?dq=4052565
Timestamp: 2013-12-12 05:43:39
Document Index: 593118187

Matched Legal Cases: ['application No. 07', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 09', 'application No. 09', 'application No. 09']

Patent US6204456 - Filling open through holes in a multilayer board - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsMethods of filling apertures, for example, through holes, in substrates are provided. The methods utilize a dielectric film, preferably a photoimageable dielectric film, which is employed to fill the apertures and to form a dielectric film disposed above the substrate at the same time. As a result, the...http://www.google.com/patents/US6204456?utm_source=gb-gplus-sharePatent US6204456 - Filling open through holes in a multilayer boardAdvanced Patent SearchPublication numberUS6204456 B1Publication typeGrantApplication numberUS 09/159,938Publication dateMar 20, 2001Filing dateSep 24, 1998Priority dateSep 24, 1998Fee statusLapsedPublication number09159938, 159938, US 6204456 B1, US 6204456B1, US-B1-6204456, US6204456 B1, US6204456B1InventorsJohn M. Lauffer, Voya R. Markovich, Cheryl L. Palomaki, William E. WilsonOriginal AssigneeInternational Business Machines CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (55), Non-Patent Citations (10), Referenced by (24), Classifications (23), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetFilling open through holes in a multilayer boardUS 6204456 B1Abstract Methods of filling apertures, for example, through holes, in substrates are provided. The methods utilize a dielectric film, preferably a photoimageable dielectric film, which is employed to fill the apertures and to form a dielectric film disposed above the substrate at the same time. As a result, the aperture fill material is the same as, and indeed continuous with, the dielectric film which is disposed on the substrate. The method employs the following steps: providing a substrate having apertures; providing a dielectric film disposed on the substrate covering the apertures, reflowing the dielectric film to flow into the apertures and to form a dielectric film adherent to the substrate, to provide a continuous dielectric extending from the dielectric film into the apertures. In certain embodiments, after filling, additional apertures, such as vias, are photoimaged in the dielectric film. Preferably the vias are then metallized, and circuitry formed atop the dielectric film.
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correctionSep 24, 1998ASAssignmentOwner name: INTERNATIONAL BUSINESS MACHINES CORPORATION, NEW YFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LAUFFER, JOHN M.;MARKOVICH, VOYA R.;PALOMAKI, CHERYL L.;AND OTHERS;REEL/FRAME:009487/0919;SIGNING DATES FROM 19980915 TO 19980922RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google