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To: John Walliker who wrote (105407)	7/10/2000 6:39:49 AM
From: Amy J	Read Replies (1) \| Respond to of 186894

RE: "ceramic capacitors" Hi John, Yes, you're right. I forgot (until you reminded me) about TCs being replaced by ceramic caps. Bingo - that's it. Thread, I had a glitch and completely forget that TCs are being successfully replaced by ceramic caps. His report should have included this information. Regards, Amy J

To: John Walliker who wrote (105407)	7/10/2000 10:58:55 AM
From: Ali Chen	Respond to of 186894

<High density ceramic capacitors are now available with much higher capacitance values and volumetric density. They can now be used in many situations where tantalums were used previously> This is not much about capacitor capacity but more because of progress in power FET switchers. AMD's reference designs use switchers at up to 2MHz which allows very small coils, and they use ceramics only (since TC just do not work, and there is no need for high capacitance at these frequencies). No heat sinks for FETS is required also :)