US 11,746,052 B2
Multi-component composition for producing an aqueous coating mass
Markus Scheibel, Hanau (DE)
Assigned to HERAEUS DEUTSCHLAND GMBH & CO. KG, Hanau (DE)
Filed by Heraeus Deutschland GmbH & Co. KG, Hanau (DE)
Filed on Jun. 20, 2022, as Appl. No. 17/844,261.
Application 17/844,261 is a division of application No. 16/629,778, abandoned, previously published as PCT/EP2018/059820, filed on Apr. 18, 2018.
Claims priority of application No. 17183916 (EP), filed on Jul. 31, 2017; and application No. 17200561 (EP), filed on Nov. 8, 2017.
Prior Publication US 2022/0315491 A1, Oct. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 28/34 (2006.01); B28B 1/24 (2006.01); B28B 11/24 (2006.01); C04B 14/04 (2006.01); C04B 24/06 (2006.01); C04B 24/12 (2006.01); H01L 21/56 (2006.01); H01L 23/29 (2006.01); H05K 5/06 (2006.01); C04B 12/02 (2006.01); C04B 111/00 (2006.01)
CPC C04B 28/34 (2013.01) [B28B 1/24 (2013.01); B28B 11/24 (2013.01); C04B 12/02 (2013.01); C04B 14/046 (2013.01); C04B 24/06 (2013.01); C04B 24/126 (2013.01); H01L 21/56 (2013.01); H01L 23/291 (2013.01); H05K 5/065 (2013.01); C04B 2111/00482 (2013.01); C04B 2111/00844 (2013.01)] 9 Claims
 
1. A method for the production of a hydraulically cured enclosure of an electronic component, the method comprising the steps of:
(i) providing an electronic component to be enclosed;
(ii) providing an aqueous enclosing mass in the form of an aqueous hydraulically curable preparation produced according to a method comprising the steps of:
mixing at least one component of a composition with water to produce at least one aqueous intermediate, and
mixing the at least one aqueous intermediate with further component(s) of the composition and/or further aqueous intermediate(s),
wherein the composition consists of the following constituents:
(a) 1 to 30 wt. % of at least one hydrogen phosphate selected from the group consisting of mono and dihydrogen phosphates of magnesium, calcium, aluminum, zinc, iron, cobalt, and copper;
(b) 1 to 40 wt. % of at least one compound selected from the group consisting of oxides, hydroxides, and oxide hydrates of magnesium, calcium, iron, zinc, and copper;
(c) 40 to 95 wt. % of at least one particulate filling agent selected from the group consisting of glass; mono-, oligo- and poly-phosphates of magnesium, calcium, barium and aluminum; calcium sulfate; barium sulfate; simple and complex silicates comprising sodium, potassium, calcium, aluminum, magnesium, iron and/or zirconium; simple and complex aluminates comprising sodium, potassium, calcium, magnesium and/or zirconium; simple and complex titanates comprising sodium, potassium, calcium, aluminum, magnesium, barium and/or zirconium; simple and complex zirconates comprising sodium, potassium, calcium, aluminum and/or magnesium; zirconium dioxide; titanium dioxide; aluminum oxide; silicon dioxide; silicon carbide; aluminum nitride; boron nitride and silicon nitride; and
(d) 0 to 25 wt. % of at least one constituent that differs from constituents (a) to (c),
wherein constituents (a), (b) and (c) comprise no free water,
wherein constituent (d) comprises no water,
wherein the composition is present as a two-component system, and
wherein constituents (a) and (b) are present separate from each other before the mixing steps;
(iii) enclosing the electronic component provided in step (i) in the aqueous enclosing mass provided in step (ii); and
(iv) hydraulic curing the aqueous enclosing mass enclosing the electronic component after completion of step (iii).