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Technology Stocks : Semi-Equips - Buy when BLOOD is running in the streets! -- Ignore unavailable to you. Want to Upgrade?


To: Katherine Derbyshire who wrote (5683)6/4/1998 8:40:00 AM
From: SemiBull  Read Replies (1) | Respond to of 10921
 
<<Regarding Semitool, I don't know enough about either system to judge the relative merits, but you certainly can't ignore them. They certainly have substantial R&D experience, and may also have at least a beta production tool.>>

I think they have more than a beta tool to date, though I guess its still beta until true full blown production begins.

<<(It's hard to say,because the chipmakers are being very tight-lipped about what they're actually doing. Only IBM is claiming to be production-ready with copper, though. If there's only one customer, it's unlikely that both Novellus and Semitool are selling tools to it.)>>

I believe MOTO and AMD are as well. I believe MOTO's Hector Ruiz made that statement the week following IBM's announcement, and I've heard the same from AMD. I believe in both cases SMTL and NVLS are involved though its unclear how with the Damascus announcement. I beleive SMTL's ECD is deemed superior to NVLS (hence the buyout attempt last year) which may be why both are involved....or so I hope.
I guess the theory behind this, and please correct me if I'm wrong or this sounds illogical but as it was proposed to me is the that one supplier supplies the barrier layer tool, and the other supplies the seed layer tool.

<<Their big disadvantage vs. Novellus would be size and ability to provide the other parts of the equation.>>

Absolutely. Long term, if SMTL intends on making a business out of this they will need to team, partner or be bought out.

<<Novellus is also better positioned for alternatives to copper. For instance, a number of Japanese companies are doing serious R&D on aluminum damascene--the cost advantages of damascene, without the risky switch to copper, and DRAMs don't need copper performance yet
anyway. That's bad for Semitool, but still a potential market for Novellus.>>

Technical issues aside, I believe the domestic DRAM players (there are only two) have been looking at Cu. I'm not sure how that plays into what the Japanese are doing, but from a practical standpoint why spend all that research on developing an aluminum damascene process when most of the bugs have been worked out w/respect to Cu. Am I missing somthing here, or is this much like the Japanese insistance on employing SOG in place of CMP. The lowest cost mfg of DRAM in the world started using CMP way way back when few knew or could appreciate its advantages - lowering cost and improving yield. As Cu will improve yield b/c of aluminum's disadvantages, why buck the trend with respect to DRAM? Either way, though, I agree, SMTL will have a long term problem unless realize that they can't be a loner in this game. Your comments are sincerely appreciated.

Thanks in advance....SemiBull



To: Katherine Derbyshire who wrote (5683)6/8/1998 8:44:00 PM
From: SemiBull  Respond to of 10921
 
<<Novellus is also better positioned for alternatives to copper. For
instance, a number of Japanese companies are doing serious R&D on
aluminum damascene--the cost advantages of damascene, without the
risky switch to copper, and DRAMs don't need copper performance yet
anyway. That's bad for Semitool, but still a potential market for Novellus.>>

Motorola has copper for SRAMs

AUSTIN, Tex.--Motorola Inc. here today announced a
high-performance CMOS process technology for fast SRAMs
using enhanced contacts and copper metal interconnect. The
0.15-micron technology has been used to produce a
fully-functional 4-Mbit SRAMs, according to the company's
Semiconductor Products Sector.

Motorola said the first SRAM products using the new copper
technology will be available in sample quantities during the
fourth quarter of 1998. Until now, previous announced copper
interconnect technology has been aimed at next-generation
logic ICs, mainly microprocessors and ASICs.

Details on the new SRAM technology will be presented this
week at the 1998 Symposium on VLSI Technology in Honolulu.

"Our customers have asked us for higher levels of
performance and lower system costs," said Bertrand Cambou,
senior vice president and general manager of Motorola's
Networking and Computing Systems Group. "We're meeting
those demands with alternate process and manufacturing
technology such as copper."

Motorola and IBM Corp. have separately announced plans to
commercially produce PowerPC processors with copper
interconnect in stead of conventional aluminum wiring. IBM is
now preparing to transfer its technology to a production fab
in Burlington, Vt.., while Motorola is setting up its production
in Austin. While the two are racing each other to the market
with copper ICs, others chip makers are wrestling with the
difficult issue of putting the metal into volume production
(see feature from SBN's May 1 issue)

Motorola said its SRAM technology will reduce the size of
memory cells by 35% through enhanced contacts. The copper
interconnect will also support chip densities 10 times greater
than aluminum and last 10 times longer under stress
conditions, according to the company's process experts. While
Motorola said the new 4-Mbit SRAMs will be fast, the
company did not provide specific estimates on speed gains
from the process technology and copper interconnect.