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公开(公告)号:US09870858B2
公开(公告)日:2018-01-16
申请号:US15399937
申请日:2017-01-06
Applicant: Texas Instruments Incorporated
Inventor: Dok Won Lee , Sudtida Lavangkul , Erika Lynn Mazotti , William David French
IPC: H01L27/02 , H01F27/34 , H01F27/24 , H01F27/28 , H01L27/22 , H01L43/02 , H01L43/12 , H01L23/528 , H01L23/522 , G01R33/04 , G01R33/00
CPC classification number: H01F27/346 , G01R33/0029 , G01R33/04 , H01F27/24 , H01F27/28 , H01L23/5226 , H01L23/528 , H01L27/22 , H01L43/02 , H01L43/12
Abstract: An integrated fluxgate device, which includes a magnetic core, an excitation coil, and a sense coil. The magnetic core has a longitudinal edge and a terminal edge. The excitation coil coils around the longitudinal edge of the magnetic core, and the excitation coil has a first number of excitation coil members within a proximity of the terminal edge. The sense coil coils around the longitudinal edge of the magnetic core, and the sense coil has a second number of sense coil members within the proximity of the terminal edge. For reducing fluxgate noise, the second number of sense coil members may be less than the first number of excitation coil members within the proximity of the terminal edge.
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22.
公开(公告)号:US20170345772A1
公开(公告)日:2017-11-30
申请号:US15169700
申请日:2016-05-31
Applicant: Texas Instruments Incorporated
Inventor: Ricky Alan Jackson , Erika Lynn Mazotti , Sudtida Lavangkul
IPC: H01L23/00 , H01L21/66 , H01L21/78 , H01L23/31 , H01L23/544
CPC classification number: H01L23/562 , H01L21/78 , H01L22/32 , H01L23/3192 , H01L23/585 , H01L2223/5446
Abstract: An example apparatus includes a semiconductor wafer with a plurality of probe pads each formed centered in scribe streets and intersected by saw kerf lanes. Each probe pad includes a plurality of lower level conductor layers arranged in lower level conductor frames, a plurality of lower level vias extending vertically through lower level insulator layers and electrically coupling the lower level conductor frames; a plurality of upper level conductor layers, each forming two portions on two outer edges of the probe pad, the two portions aligned with, spaced from, and on opposite sides of the saw kerf lane, the coverage of the upper level conductor layers being less than about twenty percent; and a plurality of upper level vias extending vertically through upper level insulator layers and coupling the upper level conductor layers electrically to one another and to the lower level conductor layers. Methods are disclosed.
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公开(公告)号:US09771261B1
公开(公告)日:2017-09-26
申请号:US15072852
申请日:2016-03-17
Applicant: Texas Instruments Incorporated
Inventor: Lee Alan Stringer , Mona Eissa , Byron J. R. Shulver , Sopa Chevacharoenkul , Mark R. Kimmich , Sudtida Lavangkul , Mark L. Jenson
CPC classification number: B81C1/00825 , B81C1/00365 , B81C2201/0138 , B81C2201/014 , G01R33/0047 , G01R33/0052 , G01R33/04
Abstract: A method comprises forming an etch stop layer, a first titanium layer, a magnetic core, a second titanium layer, and patterning the first and second titanium layers. The etch stop layer is formed above a substrate. The first titanium layer is formed on the etch stop layer. The magnetic core is formed on the first titanium layer. The second titanium layer has a first portion encapsulating the magnetic core with the first titanium layer, and a second portion interfacing with the first titanium layer beyond the magnetic core. The patterning of the first and second titanium layers includes forming a mask over a magnetic core region and etching the first and second titanium layers exposed by the mask using a titanium etchant and a titanium oxide etchant.
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24.
公开(公告)号:US12159846B2
公开(公告)日:2024-12-03
申请号:US16707917
申请日:2019-12-09
Applicant: Texas Instruments Incorporated
Inventor: Richard Allen Faust , Robert Martin Higgins , Anagha Shashishekhar Kulkarni , Jonathan Philip Davis , Sudtida Lavangkul , Andrew Frank Burnett
IPC: H01L23/00 , H01L21/8234
Abstract: A method of forming a semiconductor device for improving an electrical connection. The semiconductor device includes a top metal layer. A protective dielectric layer is formed over the top metal layer. A sintering operation is performed while the top metal layer is covered by the protective dielectric layer. After the sintering operation, the protective dielectric layer is patterned to expose areas on the top metal layer for bond pads of the semiconductor device. A bond pad cap is formed on the top metal layer where exposed by the protective dielectric layer.
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公开(公告)号:US12105161B2
公开(公告)日:2024-10-01
申请号:US16503660
申请日:2019-07-05
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Sudtida Lavangkul , Sopa Chevacharoenkul
Abstract: An integrated fluxgate device includes a substrate that includes a dielectric layer. A fluxgate core is located over the dielectric layer. Lower windings are disposed in a lower metal level between the fluxgate core and the dielectric layer, and upper windings are disposed in an upper metal level above the fluxgate core. A metal structure in the upper metal level or the lower metal level overlaps an end of the fluxgate core and is conductively isolated from the upper and lower windings.
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公开(公告)号:US20210233903A1
公开(公告)日:2021-07-29
申请号:US17228631
申请日:2021-04-12
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Mona M. Eissa , Mark R. Kimmich , Sudtida Lavangkul , Sopa Chevacharoenkul , Mark L. Jenson
Abstract: An integrated circuit has a substrate, a circuit, a core structure, a first encapsulation layer, a second encapsulation layer, and an oxide layer. The circuit includes transistors with active regions developed on the substrate and a metal layer formed above the active regions to provide interconnections for the transistors. The core structure is formed above the metal layer. The first encapsulation layer covers the core structure, and it has a first thermal expansion coefficient. The second encapsulation layer covers the first encapsulation layer over the core structure, and it has a second thermal expansion coefficient that is different from the first thermal expansion coefficient. As a part of the stress relief structure, the oxide layer is formed above the second encapsulation layer. The oxide layer includes an oxide thickness sufficient to mitigate a thermal stress between the first and second encapsulation layers.
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27.
公开(公告)号:US20210217706A1
公开(公告)日:2021-07-15
申请号:US17011982
申请日:2020-09-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Ricky Alan Jackson , Erika Lynn Mazotti , Sudtida Lavangkul
Abstract: An example apparatus includes a semiconductor wafer with a plurality of probe pads each formed centered in scribe streets and intersected by saw kerf lanes. Each probe pad includes a plurality of lower level conductor layers arranged in lower level conductor frames, a plurality of lower level vias extending vertically through lower level insulator layers and electrically coupling the lower level conductor frames; a plurality of upper level conductor layers, each forming two portions on two outer edges of the probe pad, the two portions aligned with, spaced from, and on opposite sides of the saw kerf lane, the coverage of the upper level conductor layers being less than about twenty percent; and a plurality of upper level vias extending vertically through upper level insulator layers and coupling the upper level conductor layers electrically to one another and to the lower level conductor layers. Methods are disclosed.
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公开(公告)号:US20200211898A1
公开(公告)日:2020-07-02
申请号:US16236735
申请日:2018-12-31
Applicant: Texas Instruments Incorporated
Inventor: Peter John Holverson , Sudtida Lavangkul
IPC: H01L21/768 , H01L23/532
Abstract: A method includes electroplate depositing a first metal layer to a first thickness on a metal seed layer, rinsing the first metal layer with deionized water, and after the first rinse process, drying the wafer. The method also includes performing one or more additional electroplating processes that respectively deposit an additional metal layer to a second thickness over the first metal layer, performing an additional rinse process that rinses the additional metal layer with deionized water, and performing an additional drying processes that dries the wafer.
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公开(公告)号:US10005662B2
公开(公告)日:2018-06-26
申请号:US15680996
申请日:2017-08-18
Applicant: Texas Instruments Incorporated
Inventor: Lee Alan Stringer , Mona Eissa , Byron J. R. Shulver , Sopa Chevacharoenkul , Mark R. Kimmich , Sudtida Lavangkul , Mark L. Jenson
CPC classification number: B81C1/00825 , B81C1/00365 , B81C2201/0138 , B81C2201/014 , G01R33/0047 , G01R33/0052 , G01R33/04
Abstract: A method comprises forming an etch stop layer, a first titanium layer, a magnetic core, a second titanium layer, and patterning the first and second titanium layers. The etch stop layer is formed above a substrate. The first titanium layer is formed on the etch stop layer. The magnetic core is formed on the first titanium layer. The second titanium layer has a first portion encapsulating the magnetic core with the first titanium layer, and a second portion interfacing with the first titanium layer beyond the magnetic core. The patterning of the first and second titanium layers includes forming a mask over a magnetic core region and etching the first and second titanium layers exposed by the mask using a titanium etchant and a titanium oxide etchant.
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公开(公告)号:US20170316875A1
公开(公告)日:2017-11-02
申请号:US15399937
申请日:2017-01-06
Applicant: Texas Instruments Incorporated
Inventor: Dok Won Lee , Sudtida Lavangkul , Erika Lynn Mazotti , William David French
IPC: H01F27/34 , H01L43/02 , H01L27/22 , H01L23/522 , G01R33/00 , H01F27/28 , H01F27/24 , G01R33/04 , H01L43/12 , H01L23/528
CPC classification number: H01F27/346 , G01R33/0029 , G01R33/04 , H01F27/24 , H01F27/28 , H01L23/5226 , H01L23/528 , H01L27/22 , H01L43/02 , H01L43/12
Abstract: An integrated fluxgate device, which includes a magnetic core, an excitation coil, and a sense coil. The magnetic core has a longitudinal edge and a terminal edge. The excitation coil coils around the longitudinal edge of the magnetic core, and the excitation coil has a first number of excitation coil members within a proximity of the terminal edge. The sense coil coils around the longitudinal edge of the magnetic core, and the sense coil has a second number of sense coil members within the proximity of the terminal edge. For reducing fluxgate noise, the second number of sense coil members may be less than the first number of excitation coil members within the proximity of the terminal edge.
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