Equation 2 · Part 1 · Advanced Semiconductor Fabrication in Practice: An Advanced Technical Guide
Symbol D_0
What this part means
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol D_0→Article meaning
The passage around this formula
A finished, fully-processed 300-millimeter wafer at an advanced node carries somewhere in the neighborhood of several hundred to a few thousand individual dies, and not all of them will work. The simplest model process engineers reach for treats random defects as a Poisson process across the wafer: given an average defect density (critical defects per unit area) and a die’s critical area (the area within which a defect is actually fatal to that die’s function), the expected fraction of working die is
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
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Sources cited in the article section
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