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Equation 2 · Part 1 · How Chiplets and Advanced Packaging Actually Work

Symbol n

nn
nn

What this part means

n 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

n is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

…of die positions to a single bonding pass [ 2 ] . The underlying arithmetic is straightforward and worth making explicit, because it is the actual reason “known-good die” testing exists as a discipline: if a stack of n dies each independently has yield y , and defects are uncorrelated across dies, the compound yield of the finished stack before any pre-screening is approximately yny^n — falling multiplicatively with every additional die stacked. Testing and discarding bad dies before they are committed to an…

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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.

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Sources cited in the surrounding passage

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