公开(公告)号：US20210343527A1

公开(公告)日：2021-11-04

申请号：US17286574

申请日：2018-12-10

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Robert Ionescu ,  Helen A. Holder ,  Jarrid Wittkopf

IPC: H01L21/02 ,  C23C18/12

Abstract: A method that includes selectively ejecting, from a first nozzle, a patterning material on to a surface of a substrate to define an area within to eject a first printable ammonium-based chalcogenometalate fluid; ejecting, from a second nozzle, the first printable ammonium-based chalcogenometalate fluid within the area defined by the patterning material to form a first layer of the printable ammonium-based chalcogenometalate fluid; and heating the first layer of printable ammonium-based chalcogenometalate fluid to dissipate the first printable ammonium-based chalcogenometalate fluid into a transition metal dichalcogenide having the form MX2.

公开(公告)号：US20210253441A1

公开(公告)日：2021-08-19

申请号：US17262353

申请日：2018-11-08

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Robert Ionescu ,  Helen A. Holder ,  Jarrid Wittkopf

IPC: C01G41/00 ,  C01G39/00 ,  C09D11/38 ,  H01L21/02 ,  B41J2/05

Abstract: A printable ammonium-based chalcogenometalate fluid may include an ammonium-based chalcogenometalate precursor; an aqueous solvent; water; and a dopant; wherein, in the presence of heat, the printable ammonium-based chalcogenometalate fluid dissipates to form a transition metal dichalcogenide having the form MX2 with the dopant distributed therethrough.

公开(公告)号：US10521711B1

公开(公告)日：2019-12-31

申请号：US16463525

申请日：2017-02-22

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Jarrid Wittkopf ,  Robert Ionescu ,  Helen A. Holder ,  Paul Howard Mazurkiewicz

IPC: G06K19/073 ,  G06K7/10

Abstract: In some examples, a controllable read blocking based radio-frequency identification (RFID) device may include a substrate layer, and a trace formed of a conductive material and disposed on, partially within, or fully within the substrate layer. The controllable read blocking based RFID device may further include a controllable read blocking layer disposed on the substrate layer and the trace and including a fluid disposed in the controllable read blocking layer to selectively block or allow passage of electromagnetic waves to the trace to respectively inhibit or allow communication of a RFID reading device with the controllable read blocking based RFID device.

公开(公告)号：US20190377994A1

公开(公告)日：2019-12-12

申请号：US16463525

申请日：2017-02-22

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Jarrid Wittkopf ,  Robert Ionescu ,  Helen A. Holder ,  Paul Howard Mazurkiewicz

IPC: G06K19/073 ,  G06K7/10

Abstract: In some examples, a controllable read blocking based radio-frequency identification (RFID) device may include a substrate layer, and a trace formed of a conductive material and disposed on, partially within, or fully within the substrate layer. The controllable read blocking based RFID device may further include a controllable read blocking layer disposed on the substrate layer and the trace and including a fluid disposed in the controllable read blocking layer to selectively block or allow passage of electromagnetic waves to the trace to respectively inhibit or allow communication of a RFID reading device with the controllable read blocking based RFID device.