In his recent blog post on Semiconductor International, Dick James talks about SanDisk’s success with stacking 9 chips in a microSD memory card. At the end of the post, he poses the following question, “If we can build nine-stacks of 30 µm-thick dice with wire bonding, will TSVs ever become economic in the commodity chip arena?” I found this an interesting question to pose to our panel. Bob – since you’re in the memory stacking business, perhaps you’d like to respond.