David / Ingemar,

But,.... does anyone REALLY know whether red phosphorus bearing materials were (or were not) used for tantalums? We DO know they were used on plastic encapsulated devices/chips!

I guess it makes little difference if the power supply circuit fails slightly before, or after, the rest of the circuit ..... unless you are in an airplane ... and someone is gunning for you ..... or you REALLY think you need a pacemaker.

Not to beat a dead horse to horseburger ... but still curious, nonetheless

Steven Creswick

-----Original Message-----
From: Ingemar Hernefjord (KC/EMW) [mailto:[log in to unmask]]
Sent: Wednesday, October 29, 2003 8:54 AM
To: [log in to unmask]
Subject: Re: [TN] Phosphorous in epoxy molds

Gosh, you mean I'll be talking to the walls...walls..walls...walls...

/Inge

-----Original Message-----
From: David Douthit [mailto:[log in to unmask]]
Sent: den 29 oktober 2003 13:48
To: TechNet E-Mail Forum.; Ingemar Hernefjord (KC/EMW)
Subject: Re: [TN] Phosphorous in epoxy molds

Inge,
The molding compound was manufactured by a major Japanese company.
It was shipped world wide to anyone who wanted to buy it.
Didn't seem to be a major problem to most users.
It was a serious problem for a number of computer manufacturers. The military got rather excited also!
They don't want to talk about it.
David A. Douthit
Manager
LoCan LLC
"Ingemar Hernefjord (KC/EMW)" wrote:
Nikkei, CALCE and others warned for red P particles in IC plastic packages. Could cause migration between terminals and electrical failures.This was last year. Didn't seem to be a major problem to most users. Anyone who knows if such P 'doped' molds were used by tantalum cap makers too?
Ingemar Hernefjord
Ericsson Microwave Systems
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