China rocked the Western AI moat thesis via a trifecta of volleys in the past few days: when Moonshot released its hyper-competitive Kimi K3 AI model , when CXMT soared nearly 500 percent in its public market debut, and when it came out that a secretive Chinese company was gunning for mass production of DUV lithography machines .

Now, we've just gleaned some juicy tidbits regarding China's third volley that's related to its concerted DUV push, reportedly spearheaded by none other than a subsidiary of Shanghai Electric, called Shanghai Aishegna.

We reported earlier this week that a secretive China-based company has now entered the DUV lithography business , with plans to produce 5 DUV machines this year, and another 20 in the next year.

While initial reports pointed to Shanghai Yuliangsheng Technology as the core vector behind China's latest DUV push, those tidbits remained firmly ensconced within the speculative realm.

Now, however, a new tidbit has thoroughly unmasked the identity of the mystery firm, pointing to Shanghai Aishegna, a subsidiary of Shanghai Electric and a sister concern of Shanghai Micro Electronics Equipment (SMEE).

Apparently, AIMES Technology - a SMEE spin-off - now deals with the back-end equipment required for DUV lithography, while SMEE handles Krypton Fluoride (248nm) and i-line (200nm to 400nm) lasers. And, Shanghai Aishegna handles DUV immersion lithography processes, where ultra-pure water's higher refractive index is used to bolster the system's Numerical Aperture (NA), sharpening the optical resolution and allowing the machine to etch much smaller, more tightly packed transistors on to silicon wafers.

Of course, as we noted recently, given the long timelines involved in graduating these homegrown DUV units to volume production, Shanghai Aishegna is unlikely to pose a threat to ASML in the near term.

It is, therefore, only natural for Beijing to hedge its bets. As per a new report out today, Huawei is planning to mass produce glass substrates for chips as soon as 2027 . As such, the company's partners are already preparing production lines for Through-Glass Via (TGV) and core glass interposer technologies.

Glass substrates have significant advantages over their silicon/organic counterparts. After all, they offer superior restiance to heat and warpage, while reducing overall substrate thickness, enabling higher interconnect density for large-scale AI GPUs and multi-layer stacking. It's precisely why Samsung Electro-Mechanics is currently developing glass substrates in partnership with Solbrain.

But, more importantly from China's perspective, glass substrates help improve processor density and thermal limits without necessarily depending on the restricted EUV lithography machines.

And yet, that's not all. China apparently already has a prototype for an EUV lithography machine , with actual chip production currently slated for 2028, rounding out a trifecta of multi-vector bets that China is pursuing with near-concurrence.

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