A desktop semiconductor foundry is a hypothetical custom manufacturing device small enough to fit on a desk, and would make semiconductor parts (power transistors and/or integrated circuits). Such a device might also include the ability to fabricate electrical components (resistors, capacitors, and inductors with values different than what's possible with semiconductors). From a website about a new semiconductor fabrication plant: "With equipment, the plant will cost a total of $3 billion." [1]] So what are the prospects for home based integrated circuit design and manufacture?