To: Trey McAtee who wrote (37847 ) 8/26/1998 6:51:00 PM From: Fabeyes Read Replies (1) | Respond to of 53903
300-mm/ The great leap that didn't happen ELECTRONIC BUYERS NEWS via NewsEdge Corporation : What happened? A year ago, semiconductor suppliers and the companies that produce chip-manufacturing equipment were charging hard down a path toward building ICs on 300-mm (12-in.) wafers. A massive R&D effort, estimated at around $4 billion expended so far, has been under way for three or more years to develop the technologies and equipment for the big wafers. The switchover, participants said, was economically driven. Chips could be built more cheaply on larger wafers. Then came 1998, and the economics changed. Now it's not just the DRAM makers that are staring down the barrel of a serious overcapacity situation. Slash the fab capacity required and re-run your model of the future: Suddenly 8-in. wafers look a lot better. This summer, 300-mm has gone out of fashion, big-time. With business conditions for fab-gear suppliers in the tank, the tap on 300-mm R&D projects has been turned down to a trickle amidst loud industry bickering. Optimists now put the move to 300-mm wafers out somewhere after 2002. Now it's the chip interconnect revolution, with the move to copper traces and low-K dielectric layers. It's not just media noise; a lot of companies are working hard to catch up with IBM. Is copper just the fab R&D technology du jour? The history of semiconductors is littered with dead, dying, and shucked-off "emerging " technologies. Time after time, technologists see a barrier of some sort looming in front of them, and you'll hear them crying "Technology X is going to hit a wall." They then rush off to work on radical new solutions like X-ray systems to replace optical lithography. What is perpetually underestimated is the industry's ability to push the wall back. The engineering community has a congenital lack of confidence about its own ability to solve problems. Maybe it's just a tendency to play it safe. It's better, the saying goes, to err on the side of caution. Guess what? It's better yet not to err. Who cares? Why should OEM consumers of ICs pay any attention to painful gyrations two or three links back up the supply chain? The answer is money. Capital. Investment. That $4 billion, and what it otherwise could have been doing. Whose pocket did it come from? Yours! Copper and low-K, let me interject, help push the wall back on the 300-mm front. The new interconnect technologies don't just increase chip performance; they also help make higher chip density possible. The more you improve density, the more ICs you make per wafer, and the less you need a bigger wafer. Suppose we jump back three years and apply that $4 billion to copper technology: We'd be well over halfway into the transition by now. And we wouldn't have so many fab-gear suppliers gasping for air, threatening to collapse in a heap. Many will be gone in a year. The move to copper is going to take longer because the industry expended so much of its reserves on 300-mm. Badly burned industry players are going to be twice as cautious moving forward. A colossal mistake has been made. Another collective goof of this magnitude could cripple the chip industry and generate widespread economic tsunamis. This is a very delicate time, a time to be careful. But lurking in the details is a lesson about confidence and clarity of thinking: We can't afford to let excess caution cloud our judgment. ú Jeremy Young is EBN's associate publisher/editorial. Copyright - 1998 CMP Media Inc. By Jeremy Young