Design strategies for future lithographic technologies - (or, OPC will never die)

被引:5
|
作者
Schellenberg, FM [1 ]
机构
[1] Mentor Graph Corp, San Jose, CA 95131 USA
来源
EMERGING LITHOGRAPHIC TECHNOLOGIES VII, PTS 1 AND 2 | 2003年 / 5037卷
关键词
RET; OPC; resolution enhancement; maskless lithography; immersion lithography; EUV; nanoimprint;
D O I
10.1117/12.484931
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Resolution Enhancement Technologies (RETs) have extended the life of optical lithography well into the regimes of k(l) = 0.3. Although there are a number of RETs widely in use now, all involve some degree of optical and process correction (OPC). This puts additional strain on the data handling and management capabilities for process calibration and mask preparation. Alternative lithographic technologies, such as Extreme UV (EUV), electron projection lithography (EPL), direct-write maskless lithography (MLL), and even nanoimprint techniques have been proposed and are under rapid development. All these alternatives create patterns using a wavelength (or the dimension of the writing tool itself) smaller than the desired feature. Since these should comfortably increase kl back to the values enjoyed many years ago, it is generally assumed that the issues associated with OPC and the data management for RETs will go away. This is not true. Although these will no longer have "optical proximity" effects to compensate, each of these processes introduces its own signature of distortions, which in turn will require compensation and the associated data management. In this paper, we will inventory the state of development for each of these technologies, and outline the expected compensations and requirements placed on data management that are associated with the adoption of the technology. These effects include electron proximity effects and pattern stitching for EPL, Flare induced proximity effects for EUV, gray scale mapping for various maskless techniques, and even local process biasing for various nanoimprint approaches.
引用
收藏
页码:591 / 598
页数:8
相关论文
共 3 条
  • [1] Lithographic tradeoffs between different assist feature OPC design strategies
    Word, J
    Zhu, SH
    DESIGN AND PROCESS INTEGRATION FOR MICROELECTRONIC MANUFACTURING, 2003, : 293 - 304
  • [2] Lithographic comparison of assist feature design strategies
    Reblinsky, K
    Bach, T
    Schulze, S
    Commons, M
    OPTICAL MICROLITHOGRAPHY XV, PTS 1 AND 2, 2002, 4691 : 891 - 898
  • [3] OPC and design verification for DIM using die-to-database inspection
    Kim, JungChan
    Yang, HyunJo
    Song, JooKyoung
    Yim, DonGgyu
    Kim, JinWoong
    Hasebe, Toshiaki
    Yamamoto, Masahiro
    DESIGN FOR MANUFACTURABILITY THROUGH DESIGN-PROCESS INTEGRATION, 2007, 6521