Although related and needed the 4101A is not one of the "design" manuals. It is "Specification for Base Materials for Rigid and Multilayer Printed Boards"
DC Mbrship $50
Free Coupon $50
Discounted hdcpy: $40
Non member price: $80
+ $40 savings
It doesn't add up for a $50 mbrship. We try very hard to provide useful & educational forums for designers. If DC members got discounts on all the documents we would take away from IPC site memberships who pay $1000 per year per site. I'd like members who want to make a difference & care about the profession, not members who are members for the discounts. Although, I do realize it helps, especially in this particular point in time. I'm all ears for those who have ideas to better the Design Industry as a whole. Something we could provide as a value for the future of a designer. Of course, everyone in the design community needs to come together, participate, give input to make this happen. All ears... I'm here for you.
:-)
Thanks,
Stephannie
[log in to unmask]
>>> [log in to unmask] 01/25/02 12:55PM >>>
Is there any reason IPC does not offer 4101 to designers at a
discount? I just called and they said I would have to pay the non-member
price.
Regards,
Ted
-----Original Message-----
From: Ray Smith [mailto:[log in to unmask]]
Sent: Friday, January 25, 2002 10:29 AM
To: [log in to unmask]
Subject: Re: [DC] IPC-2221
Material note (multiple layers) should be:
METAL CLAD LAMINATE AND PREPREG MATERIAL PER IPC-4101/26
LAMINATE SHALL HAVE A MIN. TG OF 170 C. STARTING COPPER WEIGHT FOR ALL
LAYERS TO BE xx OZ/SQ FT. TOTAL FINISHED COPPER THICKNESS ON EXTERNAL LAYERS
TO BE xxxx
Raymond Smith
Sr. PCB Designer
Tellium Inc.
Oceanport, NJ.
http://www.tellium.com
-----Original Message-----
From: Ted Tontis [mailto:[log in to unmask]]
Sent: Friday, January 25, 2002 10:55 AM
To: [log in to unmask]
Subject: [DC] IPC-2221
I just received a call from our board manufacture regarding
IPC-2221. This is the note I added to the board in the drawings.
2. ALL MATERIAL SHALL BE IN ACCORDANCE WITH IPC-2221, PLASTIC SHEET TYPE
BASE MATERIAL, GLASS BASED PREIMPREGNATED WOVEN E-GLASS WITH A Tg RATING OF
150 DEG. C BASE MATERIAL SHALL MEET UL 94V-0
I was told that I should have used IPC 4101, I am still new to the
IPC standards and I thought that 2221 called for the board standards of both
fabrication and assembly. Was I too general, is IPC 4101 more specific in
regards to the substraight material, or did I forget to add something to my
notes.
Thank you,
Ted Tontis C.I.D.
Engage Networks
316 N. Milwaukee Street
Suite 214
Milwaukee WI, 53202
PH 414-273-7600 ext. 7607
FX 414-273-7601
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