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Politics : Formerly About Applied Materials -- Ignore unavailable to you. Want to Upgrade?

To: Proud_Infidel who wrote (34309)	2/17/2000 12:57:00 PM
From: Katherine Derbyshire	Read Replies (1) \| Respond to of 70976

>> Two classes of new materials for the long term are under study: metal oxides and metal silicates. He listed titanium oxide as a promising dielectric. The metal silicates add oxygen to metals such as titanium or zirconium. He said some researchers are looking at ferroelectric materials for very dense interconnect lines. This includes some of the materials, such as BST (barium strontium titanate) that is also being considered by DRAM makers for very dense capacitors. << Mr. McIlvaine seems to be unclear on the distinction between gate dielectric and intermetal dielectric. No one in their right mind wants to use ferroelectrics to meet the low dielectric constant requirements of interconnects, but ferroelectrics are a candidate to meet the high dielectric constant requirements of gate oxides. Both applications pose severe problems, but gate dielectrics are the most likely show stopper. How long will SiO2 last? semiconductoronline.com{570CDD60-B4DC-11D3-9A7B-00A0C9C83AFB} What happens after SiO2? semiconductoronline.com{83BCA02B-6853-11D3-9A64-00A0C9C83AFB} Katherine