The ESD Problem Fabs Don’t Know They Have

Item: The ESD Problem Fabs Don’t Know They Have
Rating: 4
Author: PostSingularity Institute

by Salah Nasri (host) · View the channel on PSI

Applied Sciences & Engineering Engineering & Technology TGPProduction and industrial engineering TGPRReliability engineering

🎙 Salah Nasri (host) 👥 5K 📅 October 16, 2026 ⏱ 47 min 👁 39 📄 expert opinion 🧭 2026-10-16

Available in: English (current) Français

Keywords

ESDEOSdie-to-dieHBMionization

Summary

In this podcast episode, host Salah Nasri interviews Joshua Yoo, President and CEO of Core Insight, about electrostatic discharge (ESD) problems in semiconductor fabs, particularly for AI chips. Yoo explains that die-to-die assembly is the most critical ESD risk, with device sensitivities as low as 30V or even 5V. He recounts how fixing ESD issues at a customer site raised yield from 70% to 99.9%. The discussion covers why legacy automation tools and measurement instruments are inadequate for AI-generation devices, and how ANSI/ESD S20.20 standards are no longer sufficient. Yoo also highlights the drop in HBM sensitivity from 100V on HBM3E to 30V on HBM4, and predicts glass substrates as the next major ESD challenge. The episode includes Joshua’s background, his founding of the Korea EOS/ESD Association, and his vision for building his team at Core Insight.

137 words

Critical Evaluation

Value of the Information & Strength of the Argument

The interview provides unique insider perspectives on ESD challenges in advanced semiconductor packaging, backed by concrete case studies and specific voltage thresholds. Yoo’s arguments are well-supported by his extensive experience and patents. He effectively demonstrates that legacy ESD control methods are insufficient for AI-era devices, offering both technical explanations and practical solutions. The discussion is persuasive, though some claims lack external verification within the episode.

Scientific Rigor, Source Quality, Title Accuracy

The guest is a credible expert with 14 patents and leadership in ESD organizations. The content is consistent with known industry trends, though specific data points (e.g., yield improvement from 70% to 99.9%) are anecdotal. The title accurately encapsulates the core issue. No external sources are cited in the description, so the reliance is on the guest’s expertise. The lack of references limits independent verification.

145 words

Title / Content Match

The title accurately reflects the central theme—ESD issues in fabs that are not fully understood. It is concise and informative.

Quality & Reliability

9/10

The guest is a recognized expert with 14 patents and leadership roles; the discussion provides specific technical insights and real-world examples.

Chapters

Contribution & Novelties

The episode sheds light on emerging ESD failure modes in AI chip manufacturing, particularly the vulnerability of die-to-die interconnects and the limitations of existing measurement tools. It highlights the need for new standards and equipment designed for low-voltage sensitivities. For further exploration:

Electrostatic discharge — Fundamentals of ESD and its impact on electronics.
Human-body model — Standard ESD test model for device sensitivity.
High Bandwidth Memory — Advanced memory technology with decreasing ESD thresholds.

74 words

Radar Profile

The radar chart suggests a well-balanced profile with strong quality and reliability, moderate technical depth, and good information density. The content is highly credible but would benefit from more rigorous technical detail for specialists.

Reliability 9/10