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Why the componets missed when I use Chip Assembly Router?

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Ning Fu

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Hi everyone,

I am a graduate student. Now I am designing a comparator with Cadence.
This comparator need a resistor. I made it including schematic,symbol,layout and extracted. When do the comparator layout, the window shows all the component including the resistor I made. But when I do the Chip Assembly Router, the resistor missed in the window and a note said"component R never defined". Could you please tell me what wrong is in my design?

Thanks.

Ning
 

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