Invention Application
- Patent Title: PACKAGE BOARD
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Application No.: US17718725Application Date: 2022-04-12
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Publication No.: US20220336381A1Publication Date: 2022-10-20
- Inventor: Kenji NISHIYAMA , Koshi HIMEDA , Yoshimitsu USHIMI
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Nagaokakyo-shi
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Nagaokakyo-shi
- Priority: JP2021-071311 20210420
- Main IPC: H01L23/64
- IPC: H01L23/64 ; H01L23/498 ; H01L49/02

Abstract:
A package board that includes an inductor layer having: a first magnetic layer including first magnetic particles and a resin; an inductor wiring that functions as an inductor in the first magnetic layer; and a second magnetic layer on at least one surface of the first magnetic layer, including second magnetic particles that are higher in average flatness than the first magnetic particles and a resin, the second magnetic particles having a shape where the dimension in a direction along the main surface of the second magnetic layer is longer than the dimension in the thickness direction of the second magnetic layer.
Public/Granted literature
- US12278197B2 Package board Public/Granted day:2025-04-15
Information query
IPC分类: