Vertical microfluidic probe head with large scale surface processing apertures

    公开(公告)号:GB2565671A

    公开(公告)日:2019-02-20

    申请号:GB201817290

    申请日:2017-03-28

    Applicant: IBM

    Abstract: One or more embodiments of the present invention are directed to a vertical microfluidic probe head, which comprises a middle layer of material and two outer layers. The middle layer comprises two opposite, main surfaces, which are, each, grooved up to a same edge surface that adjoins each of the main surfaces, so as to form two sets of n microchannel cavities, n > 1, on each of the opposite main surfaces. The middle layer is furthermore arranged between the two outer layers, which (at least partly) close the microchannel cavities grooved on the two main surfaces. This way, two sets of n microchannels are formed, which are, each, open on the edge surface, such that two opposite sets of n orifices are formed on the edge surface. Thus, the length of the apertures is not limited by the thickness of the middle layer.

    Vertical microfluidic probe head with large scale surface processing apertures

    公开(公告)号:GB2565671B

    公开(公告)日:2020-06-17

    申请号:GB201817290

    申请日:2017-03-28

    Applicant: IBM

    Abstract: One or more embodiments of the present invention are directed to a method for processing a surface with a vertical microfluidic probe head. The method includes positioning the microfluidic probe head so as for the edge surface to face a surface to be processed. Next, the method dispenses processing liquid via each orifice of the first one of the sets of n orifices, so as for the dispensed processing liquid to process the surface; and aspirates liquid via each orifice of the second one of the sets of n orifices.

    Fabrication of annular microfluidic probe heads

    公开(公告)号:GB2544614A

    公开(公告)日:2017-05-24

    申请号:GB201616503

    申请日:2015-02-13

    Applicant: IBM

    Abstract: A method of fabrication of microfluidic probe heads (100) is provided, the method comprising: providing (S16) a set of n microfluidic probe head layouts (14) on a same bilayer substrate (10, 10a) that comprises two layers (11, 12), said layouts being annularly distributed on that bilayer substrate, and wherein each of said layouts comprises: a first layer (110), which corresponds to a portion of one (11) of said two layers (11, 12) of the bilayer substrate; and a second layer (120), which corresponds to a portion of another one (12) of said two layers (11, 12) of the bilayer substrate; and comprises at least one microchannel (123, 124) defined by a groove open on an upper surface (120u) of the second layer (120) and closed by a portion of a lower surface (1101) of the first layer (110); machining (S20) a hole (16) substantially at the center of the bilayer substrate (10), to create a cylinder wall (18) that delimits said hole and intercepts each of the at least one microchannel of the layouts (14), such that said at least one microchannel (123, 124) of each of said layouts extends up to at least one respective aperture (121, 122) formed at an end of the groove at the level of said cylinder wall (18); and, finally, singulating (S30) each of the n layouts to obtain n microfluidic probe heads (100). MFP heads accordingly obtained are further provided.

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