以下为句子列表：
英文: As shopping-mall-style chips continue to sprawl outward, for example, it becomes increasingly hard to keep the photolithographic image in focus at the edges.
中文: 而且连接到远处的导线太长，会导致讯号延迟，因而减低了晶片的效能及复杂的功能。
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英文: Back then, chip designers considered it risky to add two or three layers of metal on top of the silicon wafer because each new layer added hills and valleys that made it difficult to keep photolithographic patterns in focus.
中文: 当时的晶片设计者认为在矽晶圆上加上两三层金属有点冒险，会使晶圆表面凹凸不平，增加光刻过程中聚焦的困难。
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英文: The methods and systems (including amplitude division double-beam interference system, three-beam interference system, liquid immersion type deep UV interference system and full automatic interference photolithographic system) for amplitude division maskl
中文: 研究和比较了振幅分割无掩模激光干涉光刻方法和系统，包括振幅分割双光束干涉系统、三光束干涉系统、液浸式深紫外干涉系统及全自动干涉光刻系统。
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