1. Who is this source?I only joined this forum last year and haven't seen earlier posts.
But I've been aware of what you mentioned for some time—similar perspectives exist in China. The real question is: What’s the current resolution status? What’s today’s actual progress metric?
As an external observer, I consider this source exceptionally precise in characterizing China's semiconductor industrial status—concretely defining completion milestones versus remaining gaps (and where those gaps persist).
For instance, amid rampant EUV speculation, his detailed specification of one fact stands out: China achieved 5nm through extreme DUVi enhancements, not premature EUV adoption.
He acknowledged significant EUV breakthroughs but also underscored that the U.S. decisively severed China's EUV access in 2019, immediately enforcing comprehensive and effective embargoes across all EUV-related domains. Thus, expecting near-term EUV production deployment is unrealistic—there are foundational gaps to address first.
I can't vouch for his absolute accuracy, but his demonstrable work convinces me he engages regularly with China’s core semiconductor institutions/teams—though not at operational-level understanding. Crucially, his sourcing is highly credible, and he willingly clarifies technical principles in depth.
I don’t regard his technical expertise as superior to mine or others here. Yet his video revealed startling insights:
Mastery of cutting-edge semiconductor manufacturing workflows
Profound understanding of systemic challenges
Structured problem-solving frameworks
Having tracked microelectronics/semiconductor/lithography literature for over a decade, I grasp most core concepts. While perhaps less technically adept than many here, I'm far from credulous.
Countless domestic EUV/DUV claims surfaced recently—I remained silent, skeptical of all. But I trust his account. Why?
Not merely by revealing outcomes, but by:
➤ Exposing root constraints
➤ Detailing problem-solving frameworks
➤ Honestly stating: “We’re bottlenecked here—resolving this takes time”
Ultimately, that’s what ultimately builds credibility.
2. Stop using AI to write your posts