公开(公告)号：US20230156924A1

公开(公告)日：2023-05-18

申请号：US17914961

申请日：2020-12-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuya SHIMADA ,  Masahito HAYAMIZU ,  Toshihiko SAKATA ,  Makoto CHAKUNO

IPC: H05K3/02 ,  H05K3/42 ,  C23C28/00

CPC classification number: H05K3/022 ,  H05K3/422 ,  H05K3/426 ,  H05K3/427 ,  C23C28/322 ,  H05K2203/0716 ,  H05K2203/072 ,  H05K2203/0723

Abstract: A method for forming a metal film includes forming an oxide layer on a to-be-treated surface of a to-be-treated object by bringing the to-be-treated surface into contact with a reaction solution containing fluorine and an oxide precursor, removing fluorine in the oxide layer, supporting a catalyst on the oxide layer by bringing the oxide layer into contact with a catalyst solution, and depositing a metal film on the oxide layer by bringing the oxide layer into contact with an electroless plating liquid.

公开(公告)号：US20250161928A1

公开(公告)日：2025-05-22

申请号：US18873950

申请日：2023-12-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahito HAYAMIZU ,  Kazuya SHIMADA ,  Asuka HIROOKA ,  Toshihiko SAKATA

IPC: B01J37/02 ,  B01J23/14 ,  B01J23/62 ,  C23C18/16 ,  C23C18/18 ,  C23C18/42

Abstract: A method for forming a tin oxide multilayer film with a catalyst layer, the method including preparing a concentrated liquid in which a tin compound is dissolved in a polar solvent; diluting the concentrated liquid with the polar solvent and a fluoride solution to prepare a reaction liquid that is a stable divalent tin solution; immersing a substance to be treated in the reaction liquid to form a tin oxide layer on a surface of the substance to be treated; and immersing the substance to be treated having the tin oxide layer formed on the surface in a catalyst solution containing catalyst metal ions to form a catalyst layer on the tin oxide layer.

公开(公告)号：US20230389189A1

公开(公告)日：2023-11-30

申请号：US18205318

申请日：2023-06-02

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuya SHIMADA ,  Masahito HAYAMIZU ,  Toshihiko SAKATA ,  Makoto CHAKUNO

IPC: H05K3/02 ,  C23C28/00 ,  H05K3/42

CPC classification number: H05K3/022 ,  C23C28/322 ,  H05K3/422 ,  H05K3/426 ,  H05K3/427 ,  H05K2203/0716 ,  H05K2203/072 ,  H05K2203/0723

Abstract: Method for forming a metal film includes forming an oxide layer on a to-be-treated surface of a to-be-treated object by bringing the to-be-treated surface into contact with a reaction solution containing fluorine and an oxide precursor, removing fluorine in the oxide layer, supporting a catalyst on the oxide layer by bringing the oxide layer into contact with a catalyst solution, and depositing a metal film on the oxide layer by bringing the oxide layer into contact with an electroless plating liquid.