Interconnect processes

What is the phenomenon called in which, through capacitive coupling between adjacent wires, a signal change on one wire appears as noise on the other?

  1. AIR drop
  2. BCrosstalk
  3. CElectromigration
Show answer and explanation

Answer: B. Crosstalk

When wires are close together, a signal change on one is transmitted to the other through the capacitance between them, causing noise and delay variation. This is called crosstalk. Countermeasures include wider spacing, shield wires between them, and low-k materials.

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More Interconnect processes questions

  1. What is the main purpose of placing a cap layer such as cobalt on top of copper wiring?
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  3. Which is closest to the number of wiring layers in advanced logic LSIs?
  4. What is an advantage of metals such as ruthenium (Ru), being considered as alternatives to copper for fine wiring?
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