Nvidia's Blackwell chips are about twice as big as its predecessors, housing 2.6 times the number of transistors. Instead of one big piece of silicon, Blackwell consists of two advanced processors and numerous memory components joined in a single, delicate mesh of silicon, metal, and plastic. The manufacturing of each chip has to be close to perfect, presenting engineering challenges that have a sizable impact on the bottom line, with each defect rendering a $40,000 chip useless. This article looks at some of the challenges Nvidia had to overcome to produce the chip.