With the acquisition of Advanced Micro Foundry, GlobalFoundries said it believes it would be the world's largest silicon photonics maker. US chip manufacturer GlobalFoundries said on Monday (Nov 17) it has acquired Advanced Micro Foundry (AMF), a Singapore-based chipmaker that focuses on silicon photonics, a fast-growing field that is being used in artificial intelligence data centres and quantum computers. GlobalFoundries did not disclose financial details of the deal.  Silicon photonics