A Chinese artificial intelligence chip start-up led by industry veteran Wei Shaojun has emerged from stealth mode, joining giants like Huawei Technologies in betting on 3D stacking to bypass US tech export controls.Dongfang Suanxin, a company headed by Wei, who is also vice-president of the China Semiconductor Industry Association, has stepped into the spotlight by launching a corporate website and social media account, positioning itself as a new but formidable player in China’s AI computing...