公开(公告)号：US11987049B2

公开(公告)日：2024-05-21

申请号：US18247536

申请日：2022-02-11

Applicant: XTPL S.A.

Inventor： Mateusz Lysien ,  Ludovic Schneider ,  Grzegorz Tarapata ,  Filip Granek

IPC: B41J2/045 ,  C09D11/033 ,  C09D11/037 ,  C09D11/106 ,  C09D11/322 ,  C09D11/36 ,  C09D11/52

CPC classification number: B41J2/04588 ,  B41J2/04581 ,  C09D11/033 ,  C09D11/037 ,  C09D11/106 ,  C09D11/322 ,  C09D11/36 ,  C09D11/52 ,  B41J2202/03

Abstract: A method of forming a feature by dispensing a metallic nanoparticle composition from an ink-jet print head is disclosed. A jetting waveform is applied to piezoelectric actuator to dispense droplets of the metallic nanoparticle composition through nozzle opening. The droplets range in volume between 0.5 picoliter and 2.0 picoliter. The jetting waveform includes an intermediate contraction waveform portion, a final contraction waveform portion after the intermediate contraction waveform portion, and an expansion waveform portion after the final contraction waveform portion. During the intermediate contraction waveform portion, an applied voltage increases from an initial low voltage to an intermediate voltage and then is held at the intermediate voltage. During the final contraction waveform portion, the applied voltage increases from the intermediate voltage to maximum voltage and then is held at the maximum voltage. During the expansion waveform portion, the applied voltage decreases from the maximum voltage to a final low voltage.

公开(公告)号：US11549026B2

公开(公告)日：2023-01-10

申请号：US17024512

申请日：2020-09-17

Applicant: XTPL S.A.

Inventor： Mateusz Lysień ,  Aneta Wiatrowska ,  Maciej Ziȩba ,  Ludovic Schneider ,  Filip Granek

IPC: C09D11/033 ,  C09D11/52 ,  C09D11/106 ,  C09D11/037

Abstract: A metallic nanoparticle composition includes copper nanoparticles, a first non-aqueous polar protic solvent (boiling point in a range of 180° C. to 250° C. and viscosity in a range of 10 cP to 100 cP at 25° C.), and a second non-aqueous polar protic solvent (boiling point in a range of 280° C. to 300° C. and a viscosity of at least 100 cP at 25° C.). The concentration of copper nanoparticles in the composition is in a range of 32 wt % to 55 wt %, and the concentration of the second non-aqueous polar protic solvent in the composition is in a range of 4 wt % to 10 wt %. There is polyvinylpyrrolidone present on the copper nanoparticles surfaces. The composition's viscosity is at least 250 cP at 25° C.