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October 1999

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Subject:
From:
Bill Davis <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 11 Oct 1999 09:39:29 -0700
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text/plain (89 lines)
Try these as well- (they're free...)

go to www.jedec.org

look up Jedec Pub JEP124 (Pkg guidelines), J-STD-020a (JIS Sensitivity
Classifications) and JEP113-b (symbols/labels).

> Bill Davis, Ph.D.
> S3, Inc.
> Senior Scientist
> 408.325.7868
> [log in to unmask]
>
>

-----Original Message-----
From: Jack Crawford [mailto:[log in to unmask]]
Sent: Friday, October 08, 1999 1:26 PM
To: [log in to unmask]
Subject: Re: [TN] level 6 moisture sensitive smt components


IPC/JEDEC J-STD-033 April 1999 Standard for handling, Packing, Shipping and
Use of
Moisture/Reflow Sensitive Surface Mount Devices will provide this guidance.

Hardcopy cost is $20 for IPC Members

==========================================
APEX - the industry's premier trade show in Electronics
Manufacturing, March 12-16, 2000, Long Beach, California.
More information on website www.ipc.org/html/apex.htm
-----------
Jack Crawford, IPC Director of Assembly Standards and Technology
2215 Sanders Road, Northbrook IL  60062-6135
[log in to unmask]
847-790-5393
fax 847-509-9798

>>> "<Richard Tilbrook>" <[log in to unmask]> 10/08/99 02:36AM >>>
Hi,

I am enquiring into the acceptable conditions [ie. temp. and Relative
Humidity] for long term storage [ie. 8 to 10 months] of level 6 moisture
sensitive smt components.

I am aware that moisture sensitive components of levels 2 through 5 require
an RH of less than or equal to 20% RH for long term storage, but does this
apply to levels 5a and 6, or is a lower RH necessary? I ask as I have no
level 5a information to check on, and level 6 information is individual to
the component.

Thankyou for taking the time to read this,

Regards,

Richard Tilbrook,
Junior Engineer,
British Aerospace.

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