公开(公告)号：US20240174520A1

公开(公告)日：2024-05-30

申请号：US18284796

申请日：2022-03-24

Applicant: DENKA COMPANY LIMITED

Inventor： Takaaki MINAMIKAWA ,  Akihiko YAMAMOTO ,  Takashi FUKUDA

IPC: C01B33/18 ,  C08K3/36 ,  H01L21/56 ,  H01L23/29

CPC classification number: C01B33/18 ,  C08K3/36 ,  H01L23/295 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2006/80 ,  H01L21/565

Abstract: A spherical inorganic powder having, in a particle size frequency distribution, a first peak having a local maximum value in a particle size region from 0.1 μm or larger to 0.6 μm or smaller, and a second peak having a local maximum value in a particle size region from 1.5 μm or larger to 5.0 μm or smaller, wherein a value of a ratio of a frequency at the local maximum value of the second peak to a frequency at the local maximum value of the first peak is 1.5 or higher and lower than 10.0.

公开(公告)号：US20240158609A1

公开(公告)日：2024-05-16

申请号：US18284804

申请日：2022-03-24

Applicant: DENKA COMPANY LIMITED

Inventor： Takaaki MINAMIKAWA ,  Akihiko YAMAMOTO ,  Takashi FUKUDA

IPC: C08K3/36 ,  C01B33/12

CPC classification number: C08K3/36 ,  C01B33/12 ,  C08K2201/003 ,  C08K2201/006

Abstract: An inorganic powder having a volume-based cumulative 50% diameter D50 of 1.2-2.8 μm, having a volume-based particle size frequency distribution that includes at least a first peak and a second peak located on a larger-particle-diameter side of the first peak, wherein the first peak has a half-width smaller than 0.5 μm.