公开(公告)号：CA3116145A1

公开(公告)日：2020-04-23

申请号：CA3116145

申请日：2019-10-02

Applicant: ASML NETHERLANDS BV

Inventor： VAN ZWOL PIETER-JAN ,  BALTUSSEN SANDER ,  DE GRAAF DENNIS ,  FRANKEN JOHANNES CHRISTIAAN LEONARDUS ,  GIESBERS ADRIANUS JOHANNES MARIA ,  KLEIN ALEXANDER LUDWIG ,  KLOOTWIJK JOHAN HENDRIK ,  KNAPEN PETER SIMON ANTONIUS ,  KURGANOVA EVGENIA ,  KUZNETSOV ALEXEY SERGEEVICH ,  NOTENBOOM ARNOUD WILLEM ,  VALEFI MAHDIAR ,  VAN DE KERKHOF MARCUS ADRIANUS ,  VAN DEN EINDEN WILHELMUS THEODORUS ANTHONIUS JOHANNES ,  VAN DER WOORD TIES WOUTER ,  WONDERGEM HENDRIKUS JAN ,  ZDRAVKOV ALEKSANDAR NIKOLOV

IPC: G03F1/62 ,  G03F1/64 ,  G03F7/20

Abstract: A method for manufacturing a membrane assembly for EUV lithography, the method comprising: providing a stack comprising: at least one membrane layer supported by a planar substrate, wherein the planar substrate comprises an inner region and a border region around the inner region; and a first sacrificial layer between the planar substrate and the membrane layer; selectively removing the inner region of the planar substrate, wherein the step of selectively removing the inner region of the planar substrate comprises using an etchant which has a similar etch rate for the membrane layer and its oxide and a substantially different etch rate for the first sacrificial layer; such that the membrane assembly comprises: a membrane formed from the at least one membrane layer; and a border holding the membrane, the border comprising the border region of the planar substrate and the first sacrificial layer situated between the border and the membrane layer.

公开(公告)号：CA3066546A1

公开(公告)日：2018-12-20

申请号：CA3066546

申请日：2018-06-08

Applicant: ASML NETHERLANDS BV

Inventor： VLES DAVID FERDINAND ,  ANDE CHAITANYA KRISHNA ,  DE GROOT ANTONIUS FRANCISCUS JOHANNES ,  GIESBERS ADRIANUS JOHANNES MARIA ,  JANSSEN JOHANNES JOSEPH ,  JANSSEN PAUL ,  KLOOTWIJK JOHAN HENDRIK ,  KNAPEN PETER SIMON ANTONIUS ,  KURGANOVA EVGENIA ,  MEIJER MARCEL PETER ,  MEIJERINK WOUTER ROGIER ,  NASALEVICH MAXIM ALEKSANDROVICH ,  NOTENBOOM ARNOUD WILLEM ,  OLSMAN RAYMOND ,  PATEL HRISHIKESH ,  PETER MARIA ,  VAN DEN BOSCH GERRIT ,  VAN DEN EINDEN WILHELMUS THEODORUS ANTHONIUS JOHANNES ,  VAN DER ZANDE WILLEM JOAN ,  VAN ZWOL PIETER-JAN ,  VERMEULEN JOHANNES PETRUS MARTINUS BERNARDUS ,  VOORTHUIJZEN WILLEM-PIETER ,  WONDERGEM HENDRIKUS JAN ,  ZDRAVKOV ALEXANDAR NIKOLOV

IPC: G03F1/62 ,  G03F1/64

Abstract: The invention relates to a pellicle assembly comprising a pellicle frame defining a surface onto which a pellicle is attached. The pellicle assembly comprises one or more three-dimensional expansion structures that allow the pellicle to expand under stress. The invention also relates to a pellicle assembly for a patterning device comprising one or more actuators for moving the pellicle assembly towards and way from the patterning device.