Rohm & Haas Electronic Materials LLC

Cornell University

Xiang-Qian Liu

Mark Robert Winkle

Kim Sang Ho

David Fleming

Michael K Gallagher

Avin V Dhoble

Mike K Gallagher

Ian A Tomlinson

Asghar Akber Peera

Glenn Nelson Robinson

Scott Alan Ibbitson

Jill E Steeper

Janet Okada-Coakley

Christopher Kemper Ober

Ramakrishnan Ayothi

Kyung-Min Kim

Photoresist compositions and methods suitable for depositing a thick photoresist layer in a single coating application are provided. Such photoresist layers are particularly suitable for use in chip scale packaging, for example, in the formation of metal bumps.

Photosensitive composition

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.

Polyamine flux composition and method of soldering

Novel classes of ionic photoacid generator (PAGs) compounds having relatively environmentally friendly anions with no perfluorooctyl sulfonate (no-PFOS) are provided and photoresist composition that comprise such compounds. The new PAGs produce a photoacid having a short or no perfluoro alkyl chain (ie., no-PFOS) attached to a variety of functional groups. The PAGs of the invention are useful as photoactive component in the chemically amplified resist compositions used for microfabrication.

Growing community of inventors

Collegeville, PA, United States of America

Xiang-Qian Liu