公开(公告)号：US20190194496A1

公开(公告)日：2019-06-27

申请号：US16329394

申请日：2017-06-29

Applicant: IPI TECH INC.

Inventor： Kye-Ung LEE ,  Ho-Young PARK ,  Tae-Seok LEE

IPC: C09J7/29 ,  H01L23/00 ,  B32B7/12 ,  B32B27/08 ,  B32B27/28

CPC classification number: C09J7/29 ,  B32B7/12 ,  B32B27/08 ,  B32B27/281 ,  C09J2203/326 ,  C09J2479/086 ,  H01L21/02 ,  H01L21/48 ,  H01L21/56 ,  H01L23/00 ,  H01L23/488 ,  H01L23/498 ,  H01L24/50 ,  H01L2924/07025

Abstract: Disclosed are a polyimide film for a semiconductor package reflow process, and a manufacturing method therefor, the polyimide film being capable of ensuring ease of attachment/detachment of a semiconductor chip after a reflow process is completed, by means of the application of a thermoplastic polyimide layer having a glass transition temperature less than or equal to a reflow process temperature.

公开(公告)号：US11015089B2

公开(公告)日：2021-05-25

申请号：US16329394

申请日：2017-06-29

Applicant: IPI TECH INC.

Inventor： Kye-Ung Lee ,  Ho-Young Park ,  Tae-Seok Lee

IPC: C09J7/29 ,  H01L21/683 ,  H01L21/02 ,  H01L21/48 ,  H01L23/498 ,  H01L23/488 ,  B32B7/12 ,  B32B27/08 ,  B32B27/28 ,  H01L23/00 ,  H01L21/56

Abstract: Disclosed are a polyimide film for a semiconductor package reflow process, and a manufacturing method therefor, the polyimide film being capable of ensuring ease of attachment/detachment of a semiconductor chip after a reflow process is completed, by means of the application of a thermoplastic polyimide layer having a glass transition temperature less than or equal to a reflow process temperature.

公开(公告)号：US20210043935A1

公开(公告)日：2021-02-11

申请号：US16964313

申请日：2019-01-21

Applicant: IPI TECH INC.

Inventor： Seung Wan SONG ,  Hieu QUANG PHAM ,  Hyun Min JUNG

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  C08G73/10 ,  C08K3/04 ,  C08K3/22 ,  C08K3/11

Abstract: The present invention relates to a binder for a lithium secondary battery, an electrode comprising the same, and a lithium secondary battery comprising the electrode. More specifically, the present invention provides a binder for a lithium secondary battery having excellent cycle life and high energy density, an anode for a lithium secondary battery comprising the same, and a lithium secondary battery prepared therefrom.

公开(公告)号：US11817584B2

公开(公告)日：2023-11-14

申请号：US16964313

申请日：2019-01-21

Applicant: IPI TECH INC.

Inventor： Seung Wan Song ,  Hieu Quang Pham ,  Hyun Min Jung

IPC: H01M4/62 ,  C08K3/11 ,  C08G73/10 ,  C08K3/04 ,  C08K3/22 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/622 ,  C08G73/1067 ,  C08K3/04 ,  C08K3/11 ,  C08K3/22 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C08K2003/2203 ,  C08K2003/2262 ,  C08K2003/2289 ,  C08K2003/2293 ,  C08K2201/001 ,  C08K2201/003 ,  H01M2004/028

Abstract: The present invention relates to a binder for a lithium secondary battery, an electrode comprising the same, and a lithium secondary battery comprising the electrode. More specifically, the present invention provides a binder for a lithium secondary battery having excellent cycle life and high energy density, an anode for a lithium secondary battery comprising the same, and a lithium secondary battery prepared therefrom.

公开(公告)号：US11492519B2

公开(公告)日：2022-11-08

申请号：US17274390

申请日：2019-06-18

Applicant: IPI TECH INC

Inventor： Kye Ung Lee ,  Ju Hwan Chun ,  Ho Young Park ,  Tae Seok Lee

IPC: B32B27/28 ,  C09J7/38 ,  B32B7/027 ,  B32B27/08 ,  B32B27/20 ,  H01L21/683

Abstract: Disclosed is a semiconductor package polyimide film, which may prevent the stripping of a thermoplastic polyimide layer by reducing a difference in the average coefficient of linear thermal expansion between a substrate film and the thermoplastic polyimide layer, and may be readily detached after a reflow process is completed since the thermoplastic polyimide layer to be attached to a lead frame has a glass transition temperature less than or equal to a reflow process temperature.