Loren A Haluska from Rochester Hills, MI

Luminescent Ceramic Coating Compositions
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US Patent:

55412483, Jul 30, 1996
Filed:

Jun 2, 1995
Appl. No.:

8/459862
Inventors:

Loren A. Haluska - Midland MI
Keith W. Michael - Midland MI
Udo C. Pernisz - Midland MI
Assignee:

Dow Corning Corporation - Midland MI
International Classification:

C08K 330
C08L 8305
US Classification:

524420
Abstract:

A coating composition comprising hydrogen silsesquioxane resin and a phosphor filler diluted in a solvent. These compositions are used to form luminescent coatings on substrates.

Borosilicate Electronic Coatings
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US Patent:

59120479, Jun 15, 1999
Filed:

Mar 25, 1993
Appl. No.:

8/037042
Inventors:

Grish Chandra - Midland MI
Loren Andrew Haluska - Midland MI
Gregg Alan Zank - Midland MI
Assignee:

Dow Corning Corporation - Midland MI
International Classification:

B05D 302
US Classification:

427226
Abstract:

A borosilicate containing coating is formed on an electronic substrate by applying a borosilazane polymer on the substrate and converting it to borosilicate by heating in an oxidizing environment. The resultant thick planarizing coatings are useful as protective coatings and dielectric inner layers.

Hermetic Substrate Coatings In An Inert Gas Atmosphere
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US Patent:

61717037, Jan 9, 2001
Filed:

Aug 22, 1994
Appl. No.:

8/293331
Inventors:

Loren Andrew Haluska - Midland MI
Assignee:

Dow Corning Corporation - Midland MI
International Classification:

B32B 1800
B32B 1520
B05D 302
US Classification:

428446
Abstract:

The present invention relates to a method of forming a ceramic or ceramic-like coating on a substrate in the absence of oxygen. The method comprises coating the substrate with a solution comprising a solven and one or more preceramic materials selected from the group consisting of hydrogen silsesquioxane and hydrolyzed or partially hydrolyzed R. sub. x Si(OR). sub. 4-x wherein R is independently selected from the group consisting of alkyl, aryl and unsaturated hydrocarbons and x is 0-2. The solvent is evaporated and a preceramic coating thereby deposited on the substrate. The preceramic coating is then ceramified by heating the coated substrate to a temperature of between about 500 up to about 1000. degree. C. under an inert gas atmosphere to thereby produce a ceramic or ceramic-like coating on the substrate. The process of the invention is useful for forming protective coatings on any substrate prone to oxidation at the temperature necessary for ceramification.

Multilayer Ceramic Coatings From Silicate Esters And Metal Oxides
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US Patent:

47538562, Jun 28, 1988
Filed:

Jan 2, 1987
Appl. No.:

7/000217
Inventors:

Loren A. Haluska - Midland MI
Keith W. Michael - Midland MI
Leo Tarhay - Sanford MI
Assignee:

Dow Corning Corporation - Midland MI
International Classification:

B32B 900
US Classification:

428698
Abstract:

This invention relates to materials produced by diluting in a solvent a preceramic mixture of a partially hydrolyzed silicate ester and a metal oxide precursor selected from the group consisting of an aluminum alkoxide, a titanium alkoxide, and a zirconium alkoxide. The preceramic mixture solvent solution is applied to a substrate and ceramified by heating. One or more ceramic coatings containing silicon carbon, silicon nitrogen, or silicon carbon nitrogen can be applied over the ceramified SiO. sub. 2 /metal oxide coating. A CVD or PECVD top coating can be applied for further protection. The invention is particularly useful for coating electronic devices.

Multilayer Ceramics From Silicate Esters
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US Patent:

47496312, Jun 7, 1988
Filed:

Dec 4, 1986
Appl. No.:

6/938679
Inventors:

Loren A. Haluska - Midland MI
Keith W. Michael - Midland MI
Leo Tarhay - Sanford MI
Assignee:

Dow Corning Corporation - Midland MI
International Classification:

B05D 306
US Classification:

428704
Abstract:

This invention relates to materials produced by diluting in a solvent a preceramic mixture of a partially hydrolyzed silicate ester which is applied to a substrate and ceramified by heating. One or more ceramic coatings containing silicon carbon, silicon nitrogen, or silicon carbon nitrogen can be applied over the ceramified SiO. sub. 2 coating. A CVD or PECVD top coating can be applied for further protection. The invention is particularly useful for coating electronic devices.

Coatings For Microelectronic Devices And Substrates
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US Patent:

52903540, Mar 1, 1994
Filed:

Aug 7, 1990
Appl. No.:

7/563778
Inventors:

Loren A. Haluska - Midland MI
Assignee:

Dow Corning Corporation - Midland MI
International Classification:

C08K 554
US Classification:

106479
Abstract:

The present invention relates to a method of forming a ceramic or ceramic-like coating on a substrate, especially electronic devices, as well as the substrate coated thereby. The method comprises coating said substrate with a solution comprising a solvent, hydrogen silsesquioxane resin and a modifying ceramic oxide precursor selected from the group consisting of tantalum oxide precursors, niobium oxide precursors, vanadium oxide precursors, phosphorous oxide precursors and boron oxide precursors. The solvent is then evaporated to thereby deposit a preceramic coating on the substrate. The preceramic coating is then ceramified by heating the to a temperature of between about 40. degree. C. and about 1000. degree. C. This coating, moreover, may be covered by additional passivation and barrier coatings.

Tamper-Proof Electronic Coatings
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US Patent:

56937016, Dec 2, 1997
Filed:

Oct 26, 1995
Appl. No.:

8/548851
Inventors:

Robert Charles Camilletti - Midland MI
Loren Andrew Haluska - Midland MI
Keith Winton Michael - Midland MI
Assignee:

Dow Corning Corporation - Midland MI
International Classification:

C08K 332
US Classification:

524417
Abstract:

Disclosed is a method of forming tamper-proof coatings on electronic devices. The method comprises applying a coating of a silica precursor resin and an inorganic salt onto the electronic device, wherein the inorganic salt is one which reacts with a wet etch to yield an acid or base that damages the electronic device. The coated electronic device is then heated at a temperature sufficient to convert the silica precursor resin to a silica containing ceramic matrix.

Fiber Reinforced Glass Matrix Composites
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US Patent:

44606389, Jul 17, 1984
Filed:

Apr 6, 1983
Appl. No.:

6/482679
Inventors:

Loren A. Haluska - Midland MI
Assignee:

Dow Corning Corporation - Midland MI
International Classification:

D03D 300
US Classification:

428224
Abstract:

What is disclosed is a method of preparing fiber reinforced glass composites from high modulus fibers, such as carbon fibers and silicon carbide fibers, and silazane polymers. The composites are obtained by heating a pressed and post-cured prepreg to an elevated temperature in an inert atmosphere. Prepregs containing silicon carbide fibers can be fired in air. A simple, low temperature laminating procedure is used in the preparation of these composites in place of the standard hot pressing technique.

Loren A Haluska