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    • 2. 发明申请
    • Methods for converting reticle configurations
    • 转换标线配置的方法
    • US20050077266A1
    • 2005-04-14
    • US10686342
    • 2003-10-14
    • Randal ChanceJ. RolfsonAzeddine Zerrade
    • Randal ChanceJ. RolfsonAzeddine Zerrade
    • C03C15/00G03F1/00C23F1/00B44C1/22C03C25/68
    • G03F1/32C03C15/00G03F1/26G03F1/72
    • The invention includes methods of converting reticles from configurations suitable for utilization with later generation (shorter wavelength) stepper radiations to configurations suitable for utilization with earlier generation (longer wavelength) stepper radiations. The invention can be utilized for converting a reticle from a configuration suitable for 193 nanometer wavelength radiation to a configuration suitable for 248 nanometer wavelength radiation. In such aspect, a quartz-containing material of a substrate can be protected with a patterned layer consisting essentially of molybdenum and silicon while the quartz-containing material is subjected to a dry etch. The configuration suitable for 248 nanometer wavelength radiation can be constructed so that a phase of 248 nanometer wavelength radiation is shifted by about 180° upon passing through combined thicknesses of the patterned layer and the quartz-containing material, relative to 248 nanometer wavelength radiation which passes only through the quartz-containing material.
    • 本发明包括从适合于利用后代(较短波长)步进辐射的配置转换掩模版到适于利用早期生成(更长波长)步进辐射的配置的方法。 本发明可用于将掩模版从适于193纳米波长辐射的配置转换成适合于248纳米波长辐射的配置。 在这种方面,可以用基本上由钼和硅组成的图案层来保护衬底的含石英材料,同时对含石英的材料进行干蚀刻。 可以构造适合于248纳米波长辐射的配置,使得248纳米波长辐射的相位相对于通过图案化层和含石英的材料的组合厚度相对于相对于通过的248纳米波长辐射而偏移大约180度 仅通过含石英材料。
    • 7. 发明申请
    • Partial edge bead removal to allow improved grounding during e-beam mask writing
    • 部分边缘珠去除以允许在电子束掩模写入期间改进接地
    • US20060130969A1
    • 2006-06-22
    • US11329504
    • 2006-01-11
    • J. Rolfson
    • J. Rolfson
    • C23F1/00
    • G03F1/40G03F1/86
    • A method to provide a ground point for second, or subsequent, e-beam mask-writing steps by selectively removing the photoresist edge bead of a photomask substrate to expose the underlying chrome layer. The selective removal leaves at least one tab of photoresist edge bead over the chrome layer. After the first e-beam mask writing step and subsequent etch, the tab can be removed to expose a portion of the chromium layer that can act as a new ground point for a second e-beam etch. Also, a nozzle for use in selectively removing the edge bead to leave a tab of photoresist edge bead.
    • 通过选择性地去除光掩模衬底的光致抗蚀剂边缘以暴露下面的铬层来为第二或随后的电子束掩模写入步骤提供接地点的方法。 选择性去除在铬层上留下光致抗蚀剂边缘珠的至少一个突片。 在第一电子束掩模写入步骤和随后的蚀刻之后,可以去除突片以暴露可以充当第二电子束蚀刻的新接地点的铬层的一部分。 而且,用于选择性地去除边缘珠以留下光致抗蚀剂边缘珠的突片的喷嘴。
    • 9. 发明申请
    • MULTI LAYER, ATTENUATED PHASE SHIFTING MASK
    • 多层,衰减相位移位面
    • US20070202418A1
    • 2007-08-30
    • US11741460
    • 2007-04-27
    • J. Rolfson
    • J. Rolfson
    • G03C5/00G03F1/00
    • G03F1/32G03F1/29
    • The present invention provides an attenuated phase shift mask (“APSM”) that, in each embodiment, includes completely transmissive regions sized and shaped to define desired semiconductor device features, slightly attenuated regions at the edges of the completely transmissive regions corresponding to isolated device features, highly attenuated regions at the edges of completely transmissive regions corresponding to closely spaced or nested device features, and completely opaque areas where it is desirable to block transmission of all radiation through the APSM. The present invention further provides methods for fabricating the APSMs according to the present invention.
    • 本发明提供了衰减相移掩模(“APSM”),其在每个实施例中包括尺寸和形状以确定期望的半导体器件特征的完全透射区域,在完全透射区域的边缘处对应于隔离的器件特征的略微衰减的区域 在完全透射区域的边缘处的高度衰减的区域对应于紧密间隔或嵌套的器件特征,以及完全不透明的区域,其中期望阻止通过APSM的所有辐射的透射。 本发明还提供了制造根据本发明的APSM的方法。