Rohm & Haas Electronic Materials LLC

Other

David Fleming

Kim Sang Ho

Mark Robert Winkle

Xiang-Qian Liu

Michael K Gallagher

Avin V Dhoble

Mike K Gallagher

Ian A Tomlinson

Asghar Akber Peera

Glenn Nelson Robinson

Robert K Barr

Michelle Bowerman Riener

Colin Hayes

Herong Lei

Tina Aoude

Colin O'Mara Hayes

David Louis Danza

Disclosed herein is a method of forming vias in electrical laminates comprising laminating a sheet having a layer comprising a crosslinkable polymer composition to a substrate wherein the crosslinkable polymer composition has a viscosity at lamination temperatures in the range of 200 Pa-s to 100,000 Pa-s, forming at least one via in the crosslinkable polymer layer by laser ablation; and after the forming of the at least one via, thermally curing the crosslinkable polymer layer. According to certain embodiments the cross linkable polymer composition has a viscosity at lamination temperature of at least 5000 Pa-s. This method yields good lamination results, good via profiles, and good desmear results when such compositions are used and the via is laser ablated before cure.

Methods of manufacturing printed wire boards

Therapeutic device for localized headache and pain treatment

A therapeutic device and method for using the same. The therapeutic device has a supportive body and a pressure applicator extending from the body that is configured to apply pressure to suboccipital muscles of a patient. The pressure applicator may be altered to adjust a position and points through which to apply pressure to the suboccipital muscles. The body may be positioned at an angle relative to the patient's neck and the pressure applicator is applied to the suboccipital muscles. The pressure can be applied for a duration of time to relieve and/or prevent headaches and migraines in patients.

Therapeutic device for treatment of headache and pain

A flux composition is provided, comprising, as an initial component: a carboxylic acid; and, a fluxing agent represented by formula I: wherein R, R, Rand Rare independently selected from a hydrogen, a substituted Calkyl group, an unsubstituted Calkyl group, a substituted Carylalkyl group and an unsubstituted Carylalkyl group; and wherein zero to three of R, R, Rand Ris(are) a hydrogen. Also provided is a method of soldering an electrical contact using the flux composition.

Flux composition and method of soldering

A flux composition is provided, comprising, as initial components: a carboxylic acid; and, a polyamine fluxing agent represented by formula I: with the proviso that when the polyamine fluxing agent represented by formula I is according to formula Ia: then zero to three of R, R, Rand Ris(are) a hydrogen. Also provided is a method of soldering an electrical contact using the flux composition.

Polyamine, carboxylic acid flux composition and method of soldering

A flux composition is provided, comprising, as initial components: a carboxylic acid; and, an amine fluxing agent represented by formula I:  Also provided is a method of soldering an electrical contact using the flux composition.

Amine, carboxylic acid flux composition and method of soldering

A curable flux composition is provided, comprising, as initial components: a resin component having at least two oxirane groups per molecule; a carboxylic acid; and, an amine fluxing agent represented by formula I: and, optionally, a curing agent. Also provided is a method of soldering an electrical contact using the curable flux composition.

Curable amine, carboxylic acid flux composition and method of soldering

A curable flux composition is provided, comprising, as initial components: a resin component having at least two oxirane groups per molecule; a carboxylic acid; a fluxing agent represented by formula I: wherein R, R, Rand Rare independently selected from a hydrogen, a substituted Calkyl group, an unsubstituted Calkyl group, a substituted Carylalkyl group and an unsubstituted Carylalkyl group; and wherein zero to three of R, R, Rand Ris(are) a hydrogen; and, optionally, a curing agent. Also provided is a method of soldering an electrical contact using the curable flux composition.

Curable flux composition and method of soldering

An amine flux composition is provided, comprising, as an initial component: an amine fluxing agent represented by formula I: wherein R, R, Rand Rare independently selected from a hydrogen, a substituted Calkyl group, an unsubstituted Calkyl group, a substituted Carylalkyl group and an unsubstituted Carylalkyl group; wherein Rand Rare independently selected from a Calkyl group, a substituted Calkyl group, a Caryl group and a substituted Caryl group or wherein Rand R, together with the carbon to which they are attached, form a Ccycloalkyl ring optionally substituted with a Calkyl group; wherein Rand Rare independently selected from a Calkyl group, a substituted Calkyl group, a Caryl group and a substituted Caryl group or wherein Rand R, together with the carbon to which they are attached, form a Ccycloalkyl ring optionally substituted with a Calkyl group; and, wherein Ris selected from a hydrogen, a Calkyl group, a substituted Calkyl group, a Caryl group and a substituted Caryl group. Also provided is a method of soldering an electrical contact using the amine flux composition.

Amine flux composition and method of soldering

A curable amine flux composition is provided, comprising, as initial components: a resin component having at least two oxirane groups per molecule; an amine fluxing agent represented by formula I: wherein R, R, Rand Rare independently selected from a hydrogen, a substituted Calkyl group, an unsubstituted Calkyl group, a substituted Carylalkyl group and an unsubstituted Carylalkyl group; wherein Rand Rare independently selected from a Calkyl group, a substituted Calkyl group, a Caryl group and a substituted Caryl group or wherein Rand R, together with the carbon to which they are attached, form a Ccycloalkyl ring optionally substituted with a Calkyl group; wherein Rand Rare independently selected from a Calkyl group, a substituted Calkyl group, a Caryl group and a substituted Caryl group or wherein Rand R, together with the carbon to which they are attached, form a Ccycloalkyl ring optionally substituted with a Calkyl group; and, wherein Ris selected from a hydrogen, a Calkyl group, a substituted Calkyl group, a Caryl group and a substituted Caryl group; and, optionally, a curing agent. Also provided is a method of soldering an electrical contact using the curable amine flux composition.

Curable amine flux composition and method of soldering

A curable flux composition is provided, comprising, as initial components: a resin component having at least two oxirane groups per molecule; a fluxing agent represented by formula I: wherein R, R, Rand Rare independently selected from a hydrogen, a substituted Calkyl group, an unsubstituted Calkyl group, a substituted Carylalkyl group and an unsubstituted Carylalkyl group; and wherein zero to three of R, R, Rand Ris(are) hydrogen; and, optionally, a curing agent. Also provided is a method of soldering an electrical contact using the curable flux composition.

A flux composition is provided, comprising, as an initial component: a fluxing agent represented by formula I: wherein R, R, Rand Rare independently selected from a hydrogen, a substituted Calkyl group, an unsubstituted Calkyl group, a substituted Carylalkyl group and an unsubstituted Carylalkyl group; and wherein zero to three of R, R, Rand Ris(are) hydrogen. Also provided is a method of soldering an electrical contact using the flux composition.

A polyamine flux composition is provided, comprising, as an initial component: a polyamine fluxing agent represented by formula I: wherein R, R, Rand Rare independently selected from a hydrogen, a substituted Calkyl group, an unsubstituted Calkyl group, a substituted Carylalkyl group and an unsubstituted Carylalkyl group; wherein Rcomprises at least two tertiary carbons and is selected from an unsubstituted Calkyl group, a substituted Calkyl group, an unsubstituted Carylalkyl group and a substituted Carylalkyl group; and, wherein the two nitrogens shown in formula I are each separately bound to one of the at least two tertiary carbons of R; with the proviso that when the polyamine fluxing agent of formula I is represented by formula Ia: then zero to three of R, R, Rand Ris(are) hydrogen. Also provided is a method of soldering an electrical contact using the polyamine flux composition.

Growing community of inventors

Northborough, MA, United States of America

David Fleming