Equation 4 · Part 2 · How Chiplets and Advanced Packaging Actually Work
superscript
superscript
What this part means
A raised number can be a power. When it is a label or bound, it selects a case or the upper limit of a sum; the formula’s structure distinguishes these uses.
Its job in the formula
A raised mark can be a power or an index. Its position and the surrounding notation determine which.
Full expression→superscript→Article meaning
The passage around this formula
This is the direct rationale, stated by imec’s own R&D leadership, for preferring die-to-wafer hybrid bonding over wafer-to-wafer bonding for heterogeneous stacks: die-to-wafer bonding permits stacking known-good dies of unequal sizes, achieving a higher compound yield than committing an entire wafer’s worth 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 —…
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 →
Sources cited in the surrounding passage
These citations provide research context; check each source for the exact claim it supports.