News AI chip boom sparks BT substrate materials shortage — TSMC's huge demand causes supply disruptions for NAND flash controllers, SSDs

If you are wondering what BT and ABF substrates are, like I was.
BT: Bismaleimide-Triazine, an epoxy resin
ABF: Ajinomoto Build-Up Film, a dielectric material

BT patent expired in 1995, but was invented by MGC.
Thanks. I was wondering. Horribly written article.
 
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