ATLAS
AI Stack/Advanced packaging

Advanced packaging

Severe bottleneck

CoWoS, HBM stacking, 2.5D/3D interposers, substrates, and the assembly that ties chips, memory, and IO together.

Modern accelerator performance is gated by packaging capacity, not just transistor density. CoWoS slot allocation has been the single most-watched supply variable in AI hardware.

Companies
5
5 pub · 0 priv
Public mcap
$2.25T
Public revenue
$162.05B
Wtd YoY
34%
Wtd GM
59%
Wtd OM
55%
Avg fund
59
Avg tech
83

Market structure

Current TAM
$45.00B
5y TAM
$110.00B
5y CAGR
20.0%
Companies
5
Margin structure
Capital-intensive
Concentration
Concentrated
Capex intensity
High
Commoditization
Low

Drivers

What grows the pie

  • CoWoS demand
  • HBM stacking
  • Chiplet adoption

Constraints

What can break the thesis

  • Capacity additions take ~24 months
  • Substrate supply
  • Tool deliveries

Upstream dependencies

Downstream consumers

Companies in Packaging

Ranked by composite score
CompanyMkt CapGrowthFCF%Val1YTechFundAIScoreView
TSMTSMC$2.08T35.1%17.5%21x85779277Critical Bottleneck
ASXASE Technology$69.53B17.2%-9.9%20x85516561Cyclical AI Beneficiary
AMKRAmkor Technology$16.98B27.5%-0.7%29x83555557Cyclical AI Beneficiary
UMNCFUnimicron$44.17B24.5%-0.2%32x82565856Cyclical AI Beneficiary
IBIDFIbiden$31.95B18.6%-11.4%58x81536254Cyclical AI Beneficiary