Jingmin Xinchun Song Zheng

US Patent:

7687014, Mar 30, 2010

Filed:

Mar 26, 2008

Appl. No.:

12/055416

Inventors:

Jingmin Zheng - Frederick MD, US
David B. Cruickshank - Rockville MD, US
David M. Firor - Thurmont MD, US

Assignee:

Skyworks Solutions, Inc. - Woburn MA

International Classification:

C04B 33/32

US Classification:

264611, 264614, 264642

Abstract:

A method for making a composite magnetic-dielectric disc assembly includes forming a dielectric ceramic cylinder, forming a magnetic ceramic rod, assembling the magnetic ceramic rod coaxially inside the dielectric ceramic cylinder to form a rod-and-cylinder assembly, kilning (firing) the rod-and-cylinder assembly, slicing the rod-and-cylinder assembly to form a plurality of composite magnetic-dielectric disc-shaped assemblies. The magnetic-dielectric disc assemblies can be used in manufacturing, for example, circulators, isolators or similar electronic components. Accordingly, the method for making the disc assemblies can be included as part of a method for making such electronic components.

US Patent:

7378363, May 27, 2008

Filed:

May 20, 2005

Appl. No.:

11/133960

Inventors:

Jingmin Zheng - Frederick MD, US
David B. Cruickshank - Rockville MD, US
David J. Cronin - Frederick MD, US
David A. Tolino - Middletown MD, US

Assignee:

Skyworks Solutions, Inc. - Woburn MA

International Classification:

C04B 35/465

US Classification:

501136

Abstract:

According to one exemplary embodiment, a dielectric ceramic composition includes a main component group, where the main component group is represented by MgCaZnTiO, where the sum of x, y, and z is less than or equal to 1. 0 such that the dielectric ceramic composition has a wider sintering temperature range and reduced exaggerated grain growth. According to one embodiment, x can be greater than 0. 0 and less than 1. 0, y can be greater than 0. 0 and less than 1. 0, and z can be greater than 0. 0 and less than 1. The dielectric ceramic composition can further include between 0. 0 and 50. 0 percent by weight of aluminum oxide. The dielectric ceramic composition can further include copper oxide. The dielectric ceramic composition can further include boron oxide.

US Patent:

8282763, Oct 9, 2012

Filed:

Apr 15, 2011

Appl. No.:

13/087975

Inventors:

Dave Cruickshank - Rockville MD, US
Tri M. Ly - Spring TX, US
Jingmin Zheng - Frederick MD, US

Assignee:

Skyworks Solutions, Inc. - Woburn MA

International Classification:

B29C 65/00
B32B 37/00
B32B 38/04

US Classification:

156294, 156250, 156296

Abstract:

A method for making a composite magnetic-dielectric disc assembly includes forming a dielectric ceramic annular cylinder, forming a magnetic ceramic rod, assembling the magnetic ceramic rod coaxially inside the dielectric ceramic cylinder, joining the magnetic ceramic rod to the dielectric ceramic cylinder using an adhesive comprising a ceramic material to form a rod-and-cylinder assembly, and slicing the rod-and-cylinder assembly to form a plurality of composite magnetic-dielectric disc-shaped assemblies. The magnetic-dielectric disc assemblies can be used as components of, for example, circulators, isolators, or similar electrical assemblies.

US Patent:

20120249273, Oct 4, 2012

Filed:

Jun 13, 2012

Appl. No.:

13/495729

Inventors:

Dave Cruickshank - Rockville MD, US
Tri M. Ly - Keller TX, US
Jingmin Zheng - Frederick MD, US

Assignee:

SKYWORKS SOLUTIONS, INC. - Woburn MA

International Classification:

H01F 1/00

US Classification:

335296

Abstract:

A magnetic-dielectric disc assembly includes a magnetic ceramic disc coaxially secured within a dielectric ceramic ring by an adhesive that includes a powdered ceramic in an epoxy matrix. The powdered ceramic is selected from the group consisting of alumina, titania, silica, and zirconia. The magnetic-dielectric disc assembly can be used as a component of, for example, a circulator, isolator, or similar electrical assembly.