LITHOGRAPHIC PROCESSES FOR MAKING POLYMER-BASED ELEMENTS

    公开(公告)号:US20240184209A1

    公开(公告)日:2024-06-06

    申请号:US18060593

    申请日:2022-12-01

    CPC classification number: G03F7/201 G03F7/0007 G03F7/2006 G03F7/2014

    Abstract: The present disclosure is directed to a lithographic patterning system including a stage for supporting a substrate with a photo-definable polymer layer, a first actinic radiation source, which is configured to propagate light along a first optical axis, a first mask for patterning the propagated light from the first actinic radiation source, a second actinic radiation source, which is configured to propagate light along a second optical axis, and a second mask for patterning the propagated light from the second actinic radiation source. In a method, first and second propagated lights form an intersection in the photo-definable polymer layer, and a patterned semiconductor component is formed at the intersection.

    Mask orientation
    3.
    发明授权

    公开(公告)号:US11977246B2

    公开(公告)日:2024-05-07

    申请号:US18120520

    申请日:2023-03-13

    CPC classification number: G02B5/1857 G03F1/42 G03F7/201 G03F7/70775 G03F7/2002

    Abstract: A method of forming patterned features on a substrate is provided. The method includes positioning a plurality of masks arranged in a mask layout over a substrate. The substrate is positioned in a first plane and the plurality of masks are positioned in a second plane, the plurality of masks in the mask layout have edges that each extend parallel to the first plane and parallel or perpendicular to an alignment feature on the substrate, the substrate includes a plurality of areas configured to be patterned by energy directed through the masks arranged in the mask layout. The method further includes directing energy towards the plurality of areas through the plurality of masks arranged in the mask layout over the substrate to form a plurality of patterned features in each of the plurality of areas.

    MICROSTRUCTURE PATTERNS
    6.
    发明申请

    公开(公告)号:US20180307138A1

    公开(公告)日:2018-10-25

    申请号:US15767990

    申请日:2016-10-13

    Abstract: In one aspect, there is provided a method of creating a microstructure pattern on an exterior surface of an aircraft, boat, automobile or other vehicle is disclosed. A layer of photopolymer (44) is applied to the top coat or substrate (43) by nozzles (45). The photopolymer is selectively irradiated to activate its photoinitiator and the unirradiated polymer is removed. The irradiation can be via a mask (49) which does not come into contact with the polymer, or via a beam splitting arrangement (63, 64) or a diffraction grating (71). The pattern can be formed by either leaving the exposed photopolymer in situ, or using the exposed photopolymer to mask the substrate, etching the substrate, and then removing the exposed photopolymer. In another aspect, there is provided a method 1100 comprising the step 1102 of applying a layer of photocurable material to the exterior surface, the step 1104 of irradiating the photocurable material with radiation including a predetermined irradiation intensity profile, and the step 1106 of removing uncured photocurable material to form the microstructure pattern. The radiation initiates curing of the irradiated photocurable material, causing a curing depth profile across the layer of the photocurable material corresponding to the selected intensity pro file.

    AUTOMATED UV-LED EXPOSURE OF FLEXOGRAPHIC PRINTING PLATES

    公开(公告)号:US20180126721A1

    公开(公告)日:2018-05-10

    申请号:US15860795

    申请日:2018-01-03

    Inventor: FRANK BOYKSEN

    CPC classification number: B41C1/10 G03F7/201 G03F7/2016 G03F7/2018 G03F7/202

    Abstract: Method for producing flexographic printing plates, using as starting material a photopolymerizable flexographic printing plate which at least comprises, arranged one above another, a dimensionally stable support, at least one photopolymerizable, relief-forming layer, at least comprising an elastomeric binder, an ethylenically unsaturated compound and a photoinitiator, a digitally imagable layer, comprising at least the following steps: (a) producing a mask by imaging the digitally imagable layer, (b) exposing the flexographic printing plate through the mask with actinic light, and photopolymerizing the image regions of the layer, the exposing taking place with a plurality of UV-LEDs which are arranged on at least one UV-LED strip which is moved relative to the surface of the flexographic printing plate, and (c) developing the photopolymerized layer by washing out and drying or by thermal development, characterized in that in the UV-LED strip or in a separate strip, at least one ultrasonic sensor is arranged, at least the thickness of the flexographic printing plate for exposure is determined with the at least one ultrasonic sensor, depending on the measured thickness of the flexographic printing plate, the exposing of the flexographic printing plate is controlled in respect of at least one of the following parameters: (i) number of exposure steps, (ii) exposure intensity, (iii) energy input per exposure step, (iv) duration of the individual exposure steps, (v) overall duration of exposure.

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