Hey Anne Marie, that’s pretty good MARVELOUS! LOL.
If there is any way I can ever help the great people on this forum, I’m there!
Have a nice weekend.
Thanks,
dean
From: Anne Marie Mulvihill [mailto:[log in to unmask]]
Sent: Friday, March 27, 2015 6:35 AM
To: [log in to unmask]
Subject: RE: [DC] Question of the Week - Laminates and Temperature
Dean, you are absolutely a HOOT!!!!!
Thank you so much for posting up the detailed directions to a place of wonder - for Jack and everyone else.
All kidding aside: it is always great to see people taking time to share their knowledge.
Especially when it is as extensive as yours – which I MARVEL at.
Anne Marie
Anne Marie Mulvihill
IPC Director of Education
+ 1-847-597-2827 tel
-----Original Message-----
From: DesignerCouncil On Behalf Of Dean Stadem
Sent: Thursday, March 26, 2015 6:38 PM
To: DesignerCouncil
Subject: Re: [DC] Question of the Week - Laminates and Temperature
Jack, get a copy of IPC-D-279 and check out section 4.0. Also please read through IPC-D-275.
The IPC put all of that information there just for you, Jack, because they just knew that someday you would realize you were not happy with plain old FR-4 anymore.
Just for you, completely detailed and all laid out. No need to go anywhere else. Not even Barnes and Noble. Nope, nossir, it's all right there. Everything you ever wanted to know about PWB substrate materials. Everything.
Suffer from insomnia? Well, here is a sure cure.
But speaking from experience, nothing could be better for a fellow Viking such as yourself than to curl up in the fish house on a cold March night with a little battery-operated LED lamp and soak in IPC-D-279 while listening for that little "jingle, tink" from the reel on the wall!
There are also a number of reference documents listed in one or both of those two standards, in case you just can't wait for the next edition. Sorry, but they would not let me put the ads for the X-ray glasses and opportunities for further education from the Close Cover Before Striking Institute of Advanced Electronics Design in the back pages.
As the Marvel editors used to say...'Nuff said.
Dean
-----Original Message-----
From: DesignerCouncil [ <mailto:[log in to unmask]> mailto:[log in to unmask]] On Behalf Of Jack Olson
Sent: Thursday, March 26, 2015 11:35 AM
To: <mailto:[log in to unmask]> [log in to unmask]
Subject: [DC] Question of the Week - Laminates and Temperature
Ok, let me say right here, I really was NOT going to try and make up a "Question of the Week" just for something to do. If you guys WANT to discuss different topics on a regular basis, I'm all for it. but I honestly need to ask about this (I'm not just "stirring the pot").
So I'm showing my ignorance by asking this, but I'm not sure where to go for help...
During the transition to meeting RoHS requirements and designing for RoHS compatibility we have begun specifying a higher quality of material than we used to, conforming to IPC-4101/126
What I would like to understand is:
How to know when I should be looking for a EVEN BETTER material (related to high-temperature applications and long-term thermal cycling). What IS the next step up? What would be used in an automotive engine compartment, for example?
I am usually designing products like displays that are in a more benign environment, but where can I learn more about this?
Jack
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