公开(公告)号：US20180318826A1

公开(公告)日：2018-11-08

申请号：US15969641

申请日：2018-05-02

Applicant: Massachusetts Institute of Technology

Inventor： Udayan Umapathi ,  Patrick Shin ,  Hiroshi Ishii

IPC: B01L3/02 ,  G01N35/10 ,  G01N35/00

CPC classification number: B01L3/0268 ,  B01L2200/0647 ,  B01L2400/0427 ,  G01N35/0099 ,  G01N35/1011

Abstract: An electrowetting-on-dielectric actuator may include an array of electrodes and a dielectric layer. The actuator may modulate voltage of the electrodes in such a way that time-varying electric fields created by the electrodes cause droplets of liquid to move relative to the actuator. The electric fields may cause the droplets to press up against a bottom surface of the actuator while the droplets are under and touching the bottom surface. The droplets may then be released from the bottom surface and thereby deposited on an object being fabricated. The release of droplets may be repeated, one layer of droplets at a time, to fabricate the object. Multiple actuators may simultaneously organize droplets in layers. A robot may move the actuators, one at a time, into position for releasing the droplets.

公开(公告)号：US10850272B2

公开(公告)日：2020-12-01

申请号：US15969641

申请日：2018-05-02

Applicant: Massachusetts Institute of Technology

Inventor： Udayan Umapathi ,  Patrick Shin ,  Hiroshi Ishii

IPC: B01L3/02 ,  G01N35/10 ,  G01N35/00 ,  B01L3/00 ,  B33Y10/00 ,  B29C64/112

Abstract: An electrowetting-on-dielectric actuator may include an array of electrodes and a dielectric layer. The actuator may modulate voltage of the electrodes in such a way that time-varying electric fields created by the electrodes cause droplets of liquid to move relative to the actuator. The electric fields may cause the droplets to press up against a bottom surface of the actuator while the droplets are under and touching the bottom surface. The droplets may then be released from the bottom surface and thereby deposited on an object being fabricated. The release of droplets may be repeated, one layer of droplets at a time, to fabricate the object. Multiple actuators may simultaneously organize droplets in layers. A robot may move the actuators, one at a time, into position for releasing the droplets.

公开(公告)号：US20210170391A1

公开(公告)日：2021-06-10

申请号：US17081462

申请日：2020-10-27

Applicant: Massachusetts Institute of Technology

Inventor： Udayan Umapathi ,  Patrick Shin ,  Hiroshi Ishii

IPC: B01L3/02 ,  G01N35/10 ,  G01N35/00 ,  B01L3/00 ,  B33Y10/00 ,  B29C64/112

Abstract: An electrowetting-on-dielectric actuator may include an array of electrodes and a dielectric layer. The actuator may modulate voltage of the electrodes in such a way that time-varying electric fields created by the electrodes cause droplets of liquid to move relative to the actuator. The electric fields may cause the droplets to press up against a bottom surface of the actuator while the droplets are under and touching the bottom surface. The droplets may then be released from the bottom surface and thereby deposited on an object being fabricated. The release of droplets may be repeated, one layer of droplets at a time, to fabricate the object. Multiple actuators may simultaneously organize droplets in layers. A robot may move the actuators, one at a time, into position for releasing the droplets.