David A Fleming

US Patent:

8070043, Dec 6, 2011

Filed:

Dec 2, 2010

Appl. No.:

12/958473

Inventors:

David D. Fleming - Northborough MA, US
Mike K. Gallagher - Hopkinton MA, US
Kim Sang Ho - Richboro PA, US
Xiang-Qian Liu - Collegeville PA, US
Mark R. Winkle - Lansdale PA, US

Assignee:

Rohm and Haas Electronic Materials LLC - Marlborough MA

International Classification:

B23K 31/02
B23K 35/34

US Classification:

22818021, 228207, 228223, 228224, 2282481, 148 23, 148 24

Abstract:

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:.

US Patent:

8070044, Dec 6, 2011

Filed:

Dec 2, 2010

Appl. No.:

12/958480

Inventors:

David D. Fleming - Northborough MA, US
Mike K. Gallagher - Hopkinton MA, US
Kim Sang Ho - Richboro PA, US
Xiang-Qian Liu - Collegeville PA, US
Mark R. Winkle - Lansdale PA, US

Assignee:

Rohm and Haas Electronic Materials LLC - Marlborough MA

International Classification:

B23K 31/02
B23K 35/34

US Classification:

22818021, 228207, 228223, 228224, 2282481, 148 23, 148 24

Abstract:

A polyamine flux composition is provided, comprising, as an initial component: a polyamine fluxing agent represented by formula I:.

US Patent:

8070045, Dec 6, 2011

Filed:

Dec 2, 2010

Appl. No.:

12/958487

Inventors:

David D. Fleming - Northborough MA, US
Mike K. Gallagher - Hopkinton MA, US
Kim Sang Ho - Richboro PA, US
Xiang-Qian Liu - Collegeville PA, US
Mark R. Winkle - Lansdale PA, US
Asghar Akber Peera - Cary Court IL, US
Glenn N. Robinson - Naperville IL, US
Ian Tomlinson - Midland MI, US

Assignee:

Rohm and Haas Electronic Materials LLC - Marlborough MA

International Classification:

B23K 31/02
B23K 35/34

US Classification:

22818021, 228207, 228223, 228224, 2282481, 148 23, 148 24

Abstract:

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:.

US Patent:

8070046, Dec 6, 2011

Filed:

Dec 2, 2010

Appl. No.:

12/958493

Inventors:

David D. Fleming - Northborough MA, US
Mike K. Gallagher - Hopkinton MA, US
Kim Sang Ho - Richboro PA, US
Xiang-Qian Liu - Collegeville PA, US
Mark R. Winkle - Lansdale PA, US
Asghar Akber Peera - Cary IL, US
Glenn N. Robinson - Naperville IL, US
Ian Tomlinson - Midland MI, US

Assignee:

Rohm and Haas Electronic Materials LLC - Marlborough MA

International Classification:

B23K 31/02
B23K 35/34

US Classification:

22818021, 228207, 228223, 228224, 2282481, 148 23, 148 24

Abstract:

An amine flux composition is provided, comprising, as an initial component: an amine fluxing agent represented by formula I:.

US Patent:

8070047, Dec 6, 2011

Filed:

Dec 2, 2010

Appl. No.:

12/958495

Inventors:

David D. Fleming - Northborough MA, US
Mike K. Gallagher - Hopkinton MA, US
Kim Sang Ho - Richboro PA, US
Xiang-Qian Liu - Collegeville PA, US
Mark R. Winkle - Lansdale PA, US

Assignee:

Rohm and Haas Electronic Materials LLC - Marlborough MA

International Classification:

B23K 31/02
B23K 35/34

US Classification:

22818021, 228207, 228223, 228224, 2282481, 148 23, 148 24

Abstract:

A flux composition is provided, comprising, as an initial component: a fluxing agent represented by formula I:.

US Patent:

8430293, Apr 30, 2013

Filed:

Sep 30, 2011

Appl. No.:

13/250125

Inventors:

Avin V. Dhoble - Waltham MA, US
Mark R. Winkle - Lansdale PA, US
Michael K. Gallagher - Hopkinton MA, US
Kim S. Ho - Richboro PA, US
Xiang-Qian Liu - Collegeville PA, US
Asghar A. Peera - Cary IL, US
Glenn N. Robinson - Naperville IL, US
Ian A. Tomlinson - Midland MI, US
David Fleming - Northborough MA, US

Assignee:

Rohm and Haas Electronic Materials LLC - Marlborough MA

International Classification:

B23K 31/02
B23K 35/34

US Classification:

22818021, 228207, 228223, 228224, 2282481, 148 23, 148 24

Abstract:

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:.

US Patent:

8430295, Apr 30, 2013

Filed:

Sep 30, 2011

Appl. No.:

13/250297

Inventors:

Michael K. Gallagher - Hopkinton MA, US
Kim S. Ho - Richboro PA, US
Avin V. Dhoble - Waltham MA, US
Mark R. Winkle - Lansdale PA, US
Xiang-Qian Liu - Collegeville PA, US
David Fleming - Northborough MA, US

Assignee:

Rohm and Haas Electronic Materials LLC - Marlborough MA

International Classification:

B23K 31/02
B23K 35/34

US Classification:

22818021, 228207, 228223, 228224, 2282481, 148 23, 148 24

Abstract:

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:.

US Patent:

20200296837, Sep 17, 2020

Filed:

Mar 10, 2020

Appl. No.:

16/814222

Inventors:

- Marlborough MA, US
David Fleming - Northborough MA, US
Michelle Bowerman Riener - Waltham MA, US
Colin O'Mara Hayes - Hudson MA, US
Herong Lei - Acton MA, US
Robert K. Barr - Shrewsbury MA, US
David Louis Danza - Rutland MA, US

International Classification:

H05K 3/00
H05K 3/42
H05K 3/40

Abstract:

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 Pas to 100,000 Pas, 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 Pas. 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.