Patent application number | Description | Published |
20090236230 | Galvanic process for filling through-holes with metals, in particular of printed circuit boards with copper - The present invention relates to a galvanic process for filling through-holes with metals. The process is particularly suitable for filling through-holes of printed circuit boards with copper. The process comprises the following steps: (i) formation of a narrow part in the center of a through-hole by electroplating; and (ii) filling the through-hole obtained in step (i) with metal by electroplating | 09-24-2009 |
20090301889 | Electrolytic Method For Filling Holes and Cavities With Metals - Disclosed is an electroplating method for filling cavities, through holes, blind holes, or micro blind holes of a work piece with metals. According to said method, the work piece containing cavities, through holes, blind holes, or micro blind holes is brought in contact with a metal deposition electrolyte, and a voltage is applied between the work piece and at least one anode such that a current flow is fed to the work piece. The invention method is characterized in that the electrolyte encompasses a redox system. | 12-10-2009 |
20110011746 | Aqueous, Acid Bath and Method for the Electrolytic Deposition of Copper - To generate a very uniform copper deposit in particular in blind micro vias (BMVs) and trenches, an aqueous, acid bath for the electrolytic deposition of copper is provided, said bath containing at least one copper ion source, at least one acid ion source, at least one brightener compound and at least one leveler compound, wherein at least one leveler compound is selected from the group comprising synthetically produced non-functionalized peptides and synthetically produced functionalized peptides and synthetically produced functionalized amino acids. | 01-20-2011 |
20140102910 | METHOD FOR COPPER PLATING - A method for copper plating in a plating bath wherein the substrate is brought into contact with a leveller additive comprising a heterocyclic core having a thiol group and an amino group attached to said heterocyclic core by a spacer is disclosed. Said method is particularly suitable for filling recessed structures in the manufacture of printed circuit boards, IC substrates and semiconducting substrates. | 04-17-2014 |
20150014177 | METHOD FOR PRODUCING MATT COPPER DEPOSITS - The present invention relates to a method for deposition of a matte copper coating wherein a first copper layer is deposited from an aqueous copper electrolyte which does not contain an organic compound comprising divalent sulfur. A second copper layer is then deposited onto the first copper layer from an aqueous copper electrolyte comprising a first and a second water soluble sulfur-containing additive wherein the first water soluble sulfur-containing compound is an alkyl sulfonic acid derivative and the second water soluble sulfur-containing additive is an aromatic sulfonic acid derivative. The method provides copper layers with a homogeneous and adjustable matte appearance for decorative applications. | 01-15-2015 |
Patent application number | Description | Published |
20090029141 | MAT-FACED GYPSUM BOARD AND METHOD OF MAKING THEREOF - A mat-faced gypsum board and method of making thereof is provided having a particulate matter applied on an inner surface of the facer mat and extending partially into the mat from the inner surface thereof. The particulate matter, which is preferably a hydratable powder such as calcium sulfate hemihydrate, minimizes and, preferably, prevents bleed through of a gypsum slurry during formation of the gypsum board. | 01-29-2009 |
20100143682 | Mat-Faced Cementitious Article and Method for Preparing Same - A cementitious composite article comprising (a) a cementitious core, (b) a skim coat cementitious layer in contact with the cementitious core having a density greater than the cementitious core, and (c) a fibrous mat comprising (i) microfibers and (ii) continuous fibers having a length of about 0.6 cm or more, wherein the fibrous mat comprises an inner surface in contact with the skim coat cementitious layer; as well as a method for manufacturing same. | 06-10-2010 |
20120040168 | WATER RESISTANT CEMENTITIOUS ARTICLE AND METHOD FOR PREPARING SAME - A fibrous mat-faced cementitious article comprising (a) a cementitious core, and (b) a first fibrous mat comprising polymer or mineral fibers and a hydrophobic finish on at least one surface thereof, wherein the hydrophobic finish is in contact with the cementitious core, and a method of preparing a fibrous mat-faced cementitious article, as well as a method of preparing a water-resistant cementitious article comprising (a) preparing an aqueous siloxane dispersion, wherein the dispersion comprises about 4 wt. % to about 8 wt. % siloxane, (b) combining the siloxane dispersion with a cementitious mixture to provide a cementitious slurry, (c) depositing the cementitious slurry onto a substrate, and (d) allowing the cementitious slurry to harden, thereby providing a cementitious article. | 02-16-2012 |