Isola Releases IS550H Material


Reading time ( words)

Nolan Johnson speaks with Michael Gay of Isola and Chris Hunrath of Insulectro about the release of their new halogen-free, high-thermal reliability material, which they hope fills the gap in the market between epoxies and polyimides.

Nolan Johnson: I understand there’s something new on the market for us to talk about. Why don’t you tell us what it is and what the application is?

Michael Gay: Quite a few years ago, the automotive industry OEMs were looking for an alternative to ceramic-based materials for high temperature applications. They wanted something that was less costly. They wanted something that would fill in the gap between typical FR-4 applications and ceramics. A consortium called The Help Project was developed with several large OEMs and other industry participants in the automotive sector who wanted to work together and develop this material. We started with about a half-dozen different candidates and then whittled it down, making comparison to products like 370HR, which is a typical FR-4 lead-free compatible material. We started doing evaluations and we came up with the product we now call IS550H.

Johnson: And this is a new product?

Gay: Yes, it’s brand new. We launched this product about four or five weeks ago. The product is manufactured in Asia. It’s really directed toward the automotive industry, but because of the properties of the material, it can actually be applied to other industries where high temperatures and high voltage CAF performance are required.

Johnson: From the automotive application perspective, how is this a response to the demands of OEMs?

Chris_Hunrath.jpgChris Hunrath: High-speed charging is an obvious area of concern, and one of the ways you accomplish that is using higher voltage. You need something with very good dielectric properties. Epoxy is good, but this material is better. Rapid charging drives this heavy copper requirement as well as the ability to make circuits and embed them in the dielectric material. With thermal performance, in the organic substrates, it has always been the domain of polyimide, with epoxies, multifunctional epoxies, and some materials in between. But there was a space between polyimide and epoxy, and we knew that polyimide doesn’t do certain things very well. It absorbs moisture, but it gets brittle as it cures. It is very decomposition resistant, but it does have some other drawbacks.

As Michael mentioned, ceramics are very good in certain applications for high temperature, but you can’t do everything you want to do in circuitry in ceramics that you can easily do with a PCB material or organic PCB material. This just gives the engineers and designers a whole lot of options when they’re designing circuits. The base resin chemistry (I don’t believe it’s proprietary) is something called benzoxazine, and it’s a newer resin system. It’s been around for a long time, but it’s newer than epoxy. The way it cross-links and the way it behaves in high temperature applications is different. It has actually been used in aircraft bodies. You’ve heard the airline industry is moving away from aluminum parts to composite parts. Well, this is the resin that is being used. Resin has to be able to flow and fill large features very well, but it also has to withstand temperature variations. Think of an aircraft on the runway vs. an aircraft in the upper atmosphere—we see some pretty wide temperature changes. This resin chemistry does all those things very well.

To read this entire interview, which appeared in the April 2021 issue of PCB007 Magazine, click here.

Share

Print


Suggested Items

Catching Up With RBP Chemical and Schlötter

01/20/2022 | Dan Beaulieu, D.B. Management Group
It’s always great to see two very good companies form a mutually beneficial alliance. I was lucky enough to watch this particular strategic partnership come to fruition this year between RBP Chemical and Schlötter. I wanted to talk to both companies, so I sat down with Matthias Hampel, global executive representative-PCB and electronics at Schlötter, and Ernest Litynski, president of RBP Chemical Technology, to get the inside story.

Insulectro Passionate About Educational Programs

12/10/2021 | I-Connect007 Editorial Team
Ken Parent, Chris Hunrath, and Michelle Walsh discuss their educational and training vision, programs that they are bringing to the industry, and why. There’s a gap, they say, in the talent pool from entry level to engineers. “There’s a huge demand now,” says Chris Hunrath. “The quicker we can fill that gap and train new people, the more PCBs can be built and more of the new products and technology will be accepted into the industry.” We are living in a people-constrained business today.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

12/10/2021 | Nolan Johnson, I-Connect007
Right now, it seems that almost everyone I know is talking about the future. Doesn’t matter whether it’s with my family, loved ones, friends, industry colleagues, or neighbors I meet on the street, conversations are almost entirely forward-looking. This being the holiday season, some reminiscing is to be expected, but I’m just not hearing it in the chatter all around me–this year is different somehow. And it shows in this edition of my must-reads for the week as well. This week we bring you forward-looking discussions with ,,,



Copyright © 2022 I-Connect007. All rights reserved.