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DEEP RESEARCH · TLB/MEMORY PCB

TLB: A Memory PCB Specialist in the AI Memory Transition

A review of SSD, DDR5, CXL, and SOCAMM demand changes and memory-module PCB competitiveness

Date: 2025-09-14 · semiconductor component/PCB company view · Naver Blog

Investment decisions are your own responsibility. This material is research, not a recommendation to buy or sell.

0. Bottom line first

TLB's core investment point is the shift in server memory from conventional memory-module PCBs toward DDR5, CXL, and SOCAMM. Recovery is visible after the 2023 downturn, but memory-cycle risk and customer concentration still need monitoring.

AI server memory transitionHigher memory requirements raise PCB specifications
DDR5Server memory generation shift
CXLMemory expansion and high-performance servers
SOCAMMPotential next-generation form factor
PCBHigh-layer, high-reliability module boards
AI server growth can raise both demand and specifications for memory-module PCBs

1. Product mix shift

Official fact: According to the source table, SSD PCB share fell from 52% in 3Q 2022 to 45.4% in 2023 and 45% in 1H 2024, while DDR5 PCB rose from 12% to 33.5% and then 40%.

Category3Q 20222023 full year1H 2024
SSD PCB52%45.4%45%
DDR5 PCB12%33.5%40%
R-DIMM PCB28%12.9%10%
Other8%8.2%5%

2. Industry backdrop and growth drivers

Interpretation: AI servers are not built by compute chips alone. As DDR5, CXL, high-performance SSDs, and next-generation memory form factors spread, module PCBs need more layers, higher reliability, and better high-speed signal handling.

DDR5

Main transition

The server memory replacement cycle is changing the product mix.

CXL

Scalability

Memory pooling and expansion demand can translate into high-spec module boards.

SOCAMM

Next option

The source treats SOCAMM as a future growth engine and possible game changer.

SSD PCB

Existing base

SSD PCB remains a major revenue pillar, although its mix share has declined.

3. Competitive landscape

CategoryTLBSimtekKorea Circuit / Daeduck Electronics
Main businessMemory/SSD module PCB specialistDiversified: memory module, BoC, package substratesDiversified: FC-BGA and high-spec HDI
Key customersSamsung Electronics, SK hynix, MicronSamsung Electronics, SK hynix, othersGlobal semiconductor and IT companies
Technical strengthHigh-spec DDR5, CXL, and SSD technology leadershipGlobal No. 1 share in memory-module PCBsHigh-end non-memory substrates such as FC-BGA
Growth driverDDR5/CXL transition, SOCAMMMemory-cycle recovery, package substrate demandFC-BGA for AI accelerators and server CPUs

4. Earnings path

KRW 100mn units2022 actual2023 actual2024 forecast1H 2025 actual2025 forecast
Revenue2,269*1,7171,947 ~ 1,9691,170.52,229 ~ 2,462
Operating profit3853090 ~ 11787.6106 ~ 210
Operating margin17.0%1.7%4.6% ~ 6.0%7.5%4.8% ~ 8.5%

5. Investment checkpoints

  • Check whether DDR5 and CXL demand actually improves product mix and margins.
  • SOCAMM has meaningful upside, but mass adoption and customer expansion must be confirmed.
  • Memory downturns, customer capex delays, and PCB pricing pressure are the main risks.

Sources

Naver original