← All parts of this equation

Equation 20 · Part 1 · Patterning at the Limit: What Actually Happens When a Chip Is Manufactured

Symbol Y

Y=e−DSY = e^{-D S}
YY

What this part means

Y is part of the quantity the equation computes from the expression on the right.

Its job in the formula

Y is part of the quantity the equation computes from the expression on the right.

The passage around this formula

with D the defect density, S the die area, and c a cluster parameter [ 16 ] . As c →\to ∞\infty the expression tends to the Poisson model Y = e−DSe^{-D S} , which assumes defects fall independently and uniformly.

Read this part in the article →

Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

Open the illustrated variables: a letter stands for a value guide →

See this notation across published equations →

Sources cited in the surrounding passage

These citations provide research context; check each source for the exact claim it supports.