公开(公告)号：US11821078B2

公开(公告)日：2023-11-21

申请号：US17227814

申请日：2021-04-12

Applicant: ASM IP Holding B.V.

Inventor： Takeru Kuwano ,  Eiichiro Shiba ,  Toshikazu Hamada ,  Yoshinori Ota

IPC: C23C16/02 ,  H01L21/02 ,  H01J37/32 ,  C23C16/455 ,  C23C16/34 ,  C23C16/40

CPC classification number: C23C16/0272 ,  C23C16/345 ,  C23C16/402 ,  C23C16/45536 ,  C23C16/45553 ,  H01J37/3244 ,  H01J37/32183 ,  H01L21/0217 ,  H01L21/02164 ,  H01L21/02274 ,  H01J2237/3321

Abstract: A method for forming a precoat film on a metal surface in a chamber before forming a silicon-containing film having an identical composition system with that of the precoat film on a substrate in the chamber using a PECVD method, wherein the precoat film is formed using a PEALD method in which a first gas and a second gas are supplied into the chamber by shifting timing of supply, the PEALD method comprises an adsorption step comprising supplying the first gas into the chamber so that the source gas component adsorbs on the metal surface, a first purge step comprising discharging an excessive source gas component not adsorbed on the metal surface, and a precoat film forming step comprising supplying the second gas into the chamber and applying high-frequency power to generate plasma in the reactant gas component in the second gas.

公开(公告)号：US20210324510A1

公开(公告)日：2021-10-21

申请号：US17227814

申请日：2021-04-12

Applicant: ASM IP Holding B.V.

Inventor： Takeru Kuwano ,  Eiichiro Shiba ,  Toshikazu Hamada ,  Yoshinori Ota

IPC: C23C16/02 ,  H01L21/02 ,  H01J37/32 ,  C23C16/455 ,  C23C16/34 ,  C23C16/40

Abstract: A method for forming a precoat film on a metal surface in a chamber before forming a silicon-containing film having an identical composition system with that of the precoat film on a substrate in the chamber using a PECVD method, wherein the precoat film is formed using a PEALD method in which a first gas and a second gas are supplied into the chamber by shifting timing of supply, the PEALD method comprises an adsorption step comprising supplying the first gas into the chamber so that the source gas component adsorbs on the metal surface, a first purge step comprising discharging an excessive source gas component not adsorbed on the metal surface, and a precoat film forming step comprising supplying the second gas into the chamber and applying high-frequency power to generate plasma in the reactant gas component in the second gas.