Method of imprinting tilt angle light gratings

    公开(公告)号:US10955606B2

    公开(公告)日:2021-03-23

    申请号:US16191340

    申请日:2018-11-14

    Abstract: Embodiments described herein relate to methods of fabricating waveguide structures with gratings having front angles less than about 45° and back angles less than about 45°. The methods include imprinting stamps into nanoimprint resists disposed on substrates. The nanoimprint resists are subjected to a cure process. The stamps are released from the nanoimprint resist at a release angle ϑ using a release method. The nanoimprint resists are subjected to an anneal process to form a waveguide structure comprising a plurality of gratings with a front angle α and a back angle β relative to a second plane of the surface of the substrate less than about 45°.

    GAP FILL OF IMPRINTED STRUCTURE WITH SPIN COATED HIGH REFRACTIVE INDEX MATERIAL FOR OPTICAL COMPONENTS

    公开(公告)号:US20200284953A1

    公开(公告)日:2020-09-10

    申请号:US16884117

    申请日:2020-05-27

    Abstract: Embodiments of the present disclosure generally relate to a method for forming an optical component, for example, for a virtual reality or augmented reality display device. In one embodiment, the method includes forming a first layer on a substrate, and the first layer has a first refractive index. The method further includes pressing a stamp having a pattern onto the first layer, and the pattern of the stamp is transferred to the first layer to form a patterned first layer. The method further includes forming a second layer on the patterned first layer by spin coating, and the second layer has a second refractive index greater than the first refractive index. The second layer having the high refractive index is formed by spin coating, leading to improved nanoparticle uniformity in the second layer.

    Post exposure processing apparatus
    56.
    发明授权

    公开(公告)号:US10401742B2

    公开(公告)日:2019-09-03

    申请号:US15947409

    申请日:2018-04-06

    Abstract: Implementations described herein relate to apparatus for post exposure processing. More specifically, implementations described herein relate to field-guided post exposure process chambers and cool down/development chambers used on process platforms. In one implementation, a plurality of post exposure process chamber and cool/down development chamber pairs are positioned on a process platform in a stacked arrangement and utilize a shared plumbing module. In another implementation, a plurality of post exposure process chamber and cool down/development chambers are positioned on a process platform in a linear arrangement and each of the chambers utilize an individually dedicated plumbing module.

    Post exposure processing apparatus
    58.
    发明授权

    公开(公告)号:US09964863B1

    公开(公告)日:2018-05-08

    申请号:US15435007

    申请日:2017-02-16

    CPC classification number: G03F7/70716 G03F7/70725 H01L21/0273

    Abstract: Implementations described herein relate to apparatus for post exposure processing. More specifically, implementations described herein relate to field-guided post exposure process chambers and cool down/development chambers used on process platforms. In one implementation, a plurality of post exposure process chamber and cool/down development chamber pairs are positioned on a process platform in a stacked arrangement and utilize a shared plumbing module. In another implementation, a plurality of post exposure process chamber and cool down/development chambers are positioned on a process platform in a linear arrangement and each of the chambers utilize an individually dedicated plumbing module.

    Controlling photo acid diffusion in lithography processes

    公开(公告)号:US09798240B2

    公开(公告)日:2017-10-24

    申请号:US14472306

    申请日:2014-08-28

    CPC classification number: G03F7/38 G03F7/0045 G03F7/26

    Abstract: Methods and apparatuses for minimizing line edge/width roughness in lines formed by photolithography are provided. The random diffusion of acid generated by a photoacid generator during a lithography process contributes to line edge/width roughness. Methods disclosed herein apply an electric field, a magnetic field, and/or a standing wave during photolithography processes. The field and/or standing wave application controls the diffusion of the acids generated by the photoacid generator along the line and spacing direction, preventing the line edge/width roughness that results from random diffusion. Apparatuses for carrying out the aforementioned methods are also disclosed herein.

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