发明名称 Charged particle lithography system with sensor assembly
摘要 The invention relates to a charged particle lithography system for transferring a pattern onto a target, said system comprising:;a target positioning device comprising a target holder having a first side for holding the target,;a charged particle optical unit for generating a charged particle beam, modulating said charged particle beam, and directing said charged particle beam towards the first side of the target holder, and;a sensor assembly comprising a converter element for converting charged particles which impinge on said converter element into light, wherein the converter element is arranged on said target positioning device, a light sensor for detecting the light, wherein the light sensor is arranged at a distance from said target positioning device, and a light optical lens which is arranged between the converter element and the light sensor for directing light originating from said converter element to said sensor.
申请公布号 US9153415(B2) 申请公布日期 2015.10.06
申请号 US201414581728 申请日期 2014.12.23
申请人 MAPPER LITHOGRAPHY IP B.V. 发明人 Scheffers Paul IJmert
分类号 G21K5/10;G21K5/00;G21K4/00;H01J37/22;H01J37/20 主分类号 G21K5/10
代理机构 Blakely Sokoloff Taylor & Zafman LLP 代理人 Blakely Sokoloff Taylor & Zafman LLP
主权项 1. Charged particle lithography system for transferring a pattern onto a target, said system comprising: a target positioning device comprising a target holder having a first side for holding the target, a charged particle optical unit for generating a charged particle beam, modulating said charged particle beam, and directing said charged particle beam towards the first side of the target holder, and a sensor assembly comprising a converter element for converting charged particles which impinge on said converter element into light, wherein the converter element is arranged on said target positioning device, a light sensor for detecting the light, wherein the light sensor is arranged at a distance from said target positioning device, and a light optical lens which is arranged between the converter element and the light sensor for directing light originating from said converter element to said sensor.
地址 Delft NL