title: "Samsung ex-engineer gets 7 years jail after court says 10nm DRAM secrets were" sold to CXMT excerpt: "A South Korean court jailed a former Samsung engineer for leaking hundreds" of DRAM process steps, a case that could shake the wider memory market. category: esports date: '2026-04-23T14:05:31+08:00' author: Aimirul tags:
- Samsung
- DRAM
- CXMT
- semiconductors
- HBM
- South Korea featured: false coverImage: /images/esports/samsung-ex-engineer-gets-7-years-jail-after-court-says-10nm-dram-secrets-were-sold-to-cxmt.jpg
Samsung’s long-running chip espionage case just got a major update, and it is the kind of story that matters far beyond Korea’s tech industry.
A South Korean court has sentenced a 56-year-old former Samsung employee, identified as Jeon, to seven years in prison after finding him guilty of leaking key DRAM manufacturing secrets to Chinese memory maker CXMT. The ruling comes after prosecutors previously indicted 10 former Samsung employees in the same corporate espionage case.
According to the case details cited by Reuters and reported by Tom’s Hardware, Jeon was found to have passed along more than 600 detailed steps related to DRAM production. The court said the information involved “core national technology”, which is a serious label in South Korea because it treats advanced chip know-how as strategically important, not just commercially valuable.
The court also said the leak may have caused damage worth potentially trillions of won. The main reason is the alleged competitive boost it gave CXMT, which was able to move faster than expected and debut 10nm-class HBM2 memory earlier than many would have anticipated.
That jump is a big deal. CXMT was producing 17nm DRAM in 2022, then reportedly advanced to 10nm in 2023. Prosecutors argued that Samsung’s stolen intellectual property helped power that rapid progress, especially since access to the most advanced lithography equipment has been a major challenge for Chinese chipmakers.
Jeon reportedly left Samsung and later worked for CXMT around the same period. Investigators believe he shared the process knowledge through handwritten notes. In return, prosecutors said he received 2.9 billion won, or about US$2 million, along with stock options and other contract incentives.
Samsung’s side of the damage is also massive on paper. Estimates in the report put the company’s 10nm DRAM R&D spending at around 1.6 trillion won, roughly US$1.08 billion, over five years. So from the court’s perspective, this was not some minor internal leak. It was the alleged transfer of years of expensive development work to a rival.
Interestingly, the court did note one mitigating factor. It said Jeon’s relatively low compensation at Samsung at the time of the crime was taken into account when deciding the sentence. Even so, the final punishment was still severe, which shows how seriously South Korea is treating semiconductor IP theft.
Why should Malaysia and SEA readers care? Simple: memory supply chains affect everything from gaming laptops and prebuilt PCs to phones, handhelds, AI hardware and even enterprise servers used by regional companies. When DRAM makers shift focus toward high-margin HBM for AI accelerators, the rest of the market can feel the squeeze. That is already why brands like HP, Asus and Dell were mentioned as looking more closely at Chinese memory suppliers amid broader shortages.
For SEA consumers, this does not mean your next RAM upgrade suddenly changes tomorrow. But it does show how messy the memory market has become. Competition is heating up, AI demand is warping supply priorities, and legal fights over chip technology are now directly shaping which companies can scale fast enough to meet global demand.
One more point worth watching: CXMT is listed under the U.S. Section 1260H roster of firms suspected of supporting the Chinese military, though it has not been banned in the U.S. at this point. That keeps the political angle alive too, especially as more global PC brands look for alternative memory sources.
For gamers, builders and tech bros in Malaysia, this is one of those behind-the-scenes chip stories that can eventually hit real-world pricing, availability and brand trust. Not glamorous, but definitely not small either.
Source: Tom's Hardware
