← All parts of this equation

Equation 4 · Part 1 · How Chiplets and Advanced Packaging Actually Work

Symbol y^n

yny^n
yny^n

What this part means

yny^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

yny^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

…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 irreversible bond recovers the yield loss that would otherwise compound across the stack, at the cost of the test infrastructure itself: burn-in racks, edge probing at…

Read this part in the article →

Learn the underlying idea

An exponent tells how a base is used in multiplication. In x³, x is the base and 3 is the exponent: x³ = x × x × x.

Open the illustrated exponents: repeated multiplication and powers 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.