If you buy from qulified vendor, it should not be an issue for trays (ESD
trays).  If you shipping components and assembly according to the
spec(either JEDEC or others), you should not have problem.  Brown cardboard
or paper (brown or other color) can be used if the parts/assembly is sealed
in moisture barrier bag with proper package (moisture indicator card
etc.etc), no problemo... JSED-033 tell you requirements...
                                 jk

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Lothar Thole
Sent: Monday, January 31, 2005 5:18 PM
To: [log in to unmask]
Subject: [TN] Sulfide contamination


I have heard that certain plastic trays, pallets, antistatic sheets, tapes,
etc. could contain sulfide as a plasticiser, which could lead to sulfide
contamination of components coming into contact with these items. Is this a
fact? Is sulfide contamination a risk if there is no brown paper or
cardboard involved?

Lothar Thole
Product Engineering Manager
Vision Systems

14 Park Way
Technology Park
MAWSON LAKES SA 5095
AUSTRALIA.



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