Patent ID: 11936088
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC H  B  C | IPC C  H

Claim 0:
1. A method of forming a composite material for use as an isolator or circulator in a radiofrequency device, the method comprising:
providing a low temperature fireable outer material, the low temperature fireable outer material having a garnet or scheelite structure;
inserting a high dielectric constant inner material within an aperture in the low temperature fireable outer material, the high dielectric constant inner material having a dielectric constant above 30; and
co-firing the lower temperature fireable outer material and the high dielectric constant inner material together at temperature between 650-900° C. to shrink the low temperature fireable outer material around an outer surface of the high dielectric constant inner material to form an integrated magnetic/dielectric assembly without the use of adhesive or glue.