公开(公告)号：US11367812B2

公开(公告)日：2022-06-21

申请号：US16891527

申请日：2020-06-03

Applicant: Ferro Corporation

Inventor： Cody J. Gleason ,  Srinivasan Sridharan ,  George E. Sakoske ,  Ellen S. Tomey ,  Chao Ma ,  Jackie D. Davis ,  Yi Yang ,  Stanley Wang

IPC: H01L33/50 ,  H01L33/48

Abstract: A phosphor in glass (PiG) cover is provided to modulate the color emitted from an LED chip. The PiG cover includes an active layer including glass and phosphor, and a secondary layer including glass and free of phosphor. The active layer is stacked on the secondary layer to form the PiG cover. Alternately the PiG includes an active layer sandwiched between two secondary layers. Two or more active layers can be stacked to each other or disposed side-by-side. An LED chip is arranged under the PiG cover to form an LED package.

公开(公告)号：US20220119315A1

公开(公告)日：2022-04-21

申请号：US17434232

申请日：2021-02-04

Applicant: Ferro Corporation

Inventor： Ellen S. Tormey ,  Peter Marley ,  Chao Ma ,  John Maloney ,  Yi Yang ,  Orville W. Brown ,  Srinivasan Sridharan

IPC: C04B35/20 ,  H01B3/10

Abstract: LTCC devices are produced from dielectric compositions include a mixture of precursor materials that, upon firing, forms a dielectric material having a magnesium-silicon oxide host. An associated Ag system for LTCC conductors is also described.