公开(公告)号：US20210091016A1

公开(公告)日：2021-03-25

申请号：US16581033

申请日：2019-09-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zhemin ZHANG ,  Kenji OTAKE ,  Yi YAN ,  Jeffrey MORRONI ,  Yuki SATO ,  Takafumi ANDO

IPC: H01L23/64 ,  H01F41/06 ,  H01F41/02 ,  H01F17/04 ,  H01F27/28 ,  H01F27/02 ,  H01L23/31 ,  H01L23/495 ,  H01L49/02 ,  H01L21/48

Abstract: In examples, a method of manufacturing a transformer device comprises providing a first magnetic member and providing a laminate member containing primary and secondary transformer windings wound around an orifice extending through the laminate member. The method further comprises positioning a build up film abutting the laminate member. The method also comprises positioning at least a portion of a second magnetic member in the orifice. The method further comprises heat pressing at least one of the first and second magnetic members such that a distance between the first and second magnetic members decreases and such that the build-up film melts, thereby producing a transformer device.

公开(公告)号：US20230018894A1

公开(公告)日：2023-01-19

申请号：US17953162

申请日：2022-09-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zhemin ZHANG ,  Kenji OTAKE ,  Yi YAN ,  Jeffrey MORRONI ,  Yuki SATO ,  Takafumi ANDO

IPC: H01L23/64 ,  H01F41/06 ,  H01F41/02 ,  H01F17/04 ,  H01F27/28 ,  H01L21/48 ,  H01L23/31 ,  H01L23/495 ,  H01L49/02 ,  H01F27/02

Abstract: In examples, a method of manufacturing a transformer device comprises providing a first magnetic member and providing a laminate member containing primary and secondary transformer windings wound around an orifice extending through the laminate member. The method further comprises positioning a build up film abutting the laminate member. The method also comprises positioning at least a portion of a second magnetic member in the orifice. The method further comprises heat pressing at least one of the first and second magnetic members such that a distance between the first and second magnetic members decreases and such that the build-up film melts, thereby producing a transformer device.

公开(公告)号：US20200211754A1

公开(公告)日：2020-07-02

申请号：US16236571

申请日：2018-12-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zhemin ZHANG ,  Roberto Giampiero MASSOLINI ,  Joyce Marie MULLENIX

IPC: H01F19/08 ,  H01F17/00

Abstract: A transformer respectively includes a first isolation barrier, a first inductive element, a second isolation barrier, and a second inductive element. The first isolation barrier and second isolation barrier each comprise multiple isolation layers. The transformer also includes magnetic material including a top magnetic portion disposed above the first isolation barrier. The transformer also includes a bottom magnetic portion disposed below the second inductive element; The transformer further includes an intermediary magnetic portion extending from the top magnetic portion to the bottom magnetic portion via a through-hole within the first isolation barrier, first inductive element, second isolation barrier, and second inductive element. The transformer yet further includes at least one lateral magnetic portion extending from the top magnetic portion to the bottom magnetic portion. The at least one lateral magnetic portion is disposed laterally from the first isolation barrier, first inductive element, second isolation barrier, and second inductive element.

公开(公告)号：US20220208662A1

公开(公告)日：2022-06-30

申请号：US17139571

申请日：2020-12-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zhemin ZHANG ,  Yi YAN ,  Hiep Xuan NGUYEN

IPC: H01L23/495 ,  H01L23/31 ,  H01L23/552 ,  H01L23/64 ,  H01L21/48 ,  H01L21/56 ,  H01L21/78

Abstract: In some examples, an electronic device comprises a first magnetic member, a first adhesive layer abutting the first magnetic member, a second magnetic member, a second adhesive layer abutting the second magnetic member, and a laminate member between the first and second adhesive layers. The laminate member comprises first and second transformer coils, an electromagnetic interference (EMI) shield coil, and a set of thermally conductive members coupled to the EMI shield coil and extending in three dimensions. At least some of the thermally conductive members extend vertically through a thickness of the laminate member so as to be exposed to top and bottom surfaces of the laminate member. The electronic device includes a thermally conductive component coupled to at least one thermally conductive member in the set of thermally conductive members.