Aerospace & Defense Technology - December 2024 - 4

Making a Material Difference
in Aerospace &
Defense Electronics
T
4
he aerospace and defense industries demand the highest
levels of reliability, durability, and performance
from their electronic systems. Central to achieving
these standards are laminate materials, which form
the backbone of printed circuit boards (PCBs) and flexible circuits
used in a multitude of applications, from avionics to missile
guidance systems.
Building these systems, which are typically implemented in
environments that experience both temperature extremes and
wide variations of temperature over time, requires robust materials
that can stand up to punishing environmental conditions.
Laminates and films for circuit boards and flexible circuits are a
vital component of this protective material profile.
This article will delve into the challenges associated with
building boards for these systems and the materials selection
requirements that designers, OEMs and fabricators should consider.
Illustrative examples of proven DuPont laminate and film
products will be cited.
What are Laminates?
Laminates provide the backbone for increasingly complex
circuits built on both rigid and flex substrates. They provide
mechanical integrity to flex circuits while allowing designers
the freedom to fit circuits into the available footprint.
Laminate materials are composites consisting of multiple layers
of substrates, adhesives, and conductive metals, typically
copper. The substrate often involves materials like polyimide,
fiberglass-reinforced epoxy resin (FR4), or PTFE (polytetrafluoroethylene),
each chosen based on specific requirements such as
thermal stability, electrical insulation, and mechanical strength.
Board materials are a key factor in electronic system development.
Their selection is dictated by the system's desired functionality
and performance requirements; in turn, the choice of
board and application drives laminate and film selection.
Regardless, the board chosen must deliver consistent functionality,
through-hole consistency, and the ability to withstand
temperature extremes.
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Aerospace & Defense Technology, December 2024
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Aerospace & Defense Technology - December 2024

Table of Contents for the Digital Edition of Aerospace & Defense Technology - December 2024

Aerospace & Defense Technology - December 2024 - Intro
Aerospace & Defense Technology - December 2024 - Sponsor
Aerospace & Defense Technology - December 2024 - Cov1
Aerospace & Defense Technology - December 2024 - Cov2
Aerospace & Defense Technology - December 2024 - 1
Aerospace & Defense Technology - December 2024 - 2
Aerospace & Defense Technology - December 2024 - 3
Aerospace & Defense Technology - December 2024 - 4
Aerospace & Defense Technology - December 2024 - 5
Aerospace & Defense Technology - December 2024 - 6
Aerospace & Defense Technology - December 2024 - 7
Aerospace & Defense Technology - December 2024 - 8
Aerospace & Defense Technology - December 2024 - 9
Aerospace & Defense Technology - December 2024 - 10
Aerospace & Defense Technology - December 2024 - 11
Aerospace & Defense Technology - December 2024 - 12
Aerospace & Defense Technology - December 2024 - 13
Aerospace & Defense Technology - December 2024 - 14
Aerospace & Defense Technology - December 2024 - 15
Aerospace & Defense Technology - December 2024 - 16
Aerospace & Defense Technology - December 2024 - 17
Aerospace & Defense Technology - December 2024 - 18
Aerospace & Defense Technology - December 2024 - 19
Aerospace & Defense Technology - December 2024 - 20
Aerospace & Defense Technology - December 2024 - 21
Aerospace & Defense Technology - December 2024 - 22
Aerospace & Defense Technology - December 2024 - 23
Aerospace & Defense Technology - December 2024 - 24
Aerospace & Defense Technology - December 2024 - 25
Aerospace & Defense Technology - December 2024 - 26
Aerospace & Defense Technology - December 2024 - 27
Aerospace & Defense Technology - December 2024 - 28
Aerospace & Defense Technology - December 2024 - 29
Aerospace & Defense Technology - December 2024 - 30
Aerospace & Defense Technology - December 2024 - 31
Aerospace & Defense Technology - December 2024 - 32
Aerospace & Defense Technology - December 2024 - 33
Aerospace & Defense Technology - December 2024 - 34
Aerospace & Defense Technology - December 2024 - 35
Aerospace & Defense Technology - December 2024 - 36
Aerospace & Defense Technology - December 2024 - 37
Aerospace & Defense Technology - December 2024 - 38
Aerospace & Defense Technology - December 2024 - 39
Aerospace & Defense Technology - December 2024 - 40
Aerospace & Defense Technology - December 2024 - Cov3
Aerospace & Defense Technology - December 2024 - Cov4
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https://www.nxtbook.com/smg/techbriefs/24ADT10
https://www.nxtbook.com/smg/techbriefs/24ADT09
https://www.nxtbook.com/smg/techbriefs/24ADT08
https://www.nxtbook.com/smg/techbriefs/24ADT06
https://www.nxtbook.com/smg/techbriefs/24ADT05
https://www.nxtbook.com/smg/techbriefs/24ADT04
https://www.nxtbook.com/smg/techbriefs/24ADT02
https://www.nxtbook.com/smg/techbriefs/23ADT12
https://www.nxtbook.com/smg/techbriefs/23ADT10
https://www.nxtbook.com/smg/techbriefs/23ADT09
https://www.nxtbook.com/smg/techbriefs/23ADT08
https://www.nxtbook.com/smg/techbriefs/23ADT06
https://www.nxtbook.com/smg/techbriefs/23ADT05
https://www.nxtbook.com/smg/techbriefs/23ADT04
https://www.nxtbook.com/smg/techbriefs/23ADT02
https://www.nxtbook.com/smg/techbriefs/22ADT12
https://www.nxtbook.com/smg/techbriefs/22ADT10
https://www.nxtbook.com/smg/techbriefs/22ADT09
https://www.nxtbook.com/smg/techbriefs/22ADT08
https://www.nxtbook.com/smg/techbriefs/22ADT06
https://www.nxtbook.com/smg/techbriefs/22ADT05
https://www.nxtbook.com/smg/techbriefs/22ADT04
https://www.nxtbook.com/smg/techbriefs/22ADT02
https://www.nxtbook.com/smg/techbriefs/21ADT12
https://www.nxtbook.com/smg/techbriefs/21ADT10
https://www.nxtbook.com/smg/techbriefs/21ADT09
https://www.nxtbook.com/smg/techbriefs/21ADT08
https://www.nxtbook.com/smg/techbriefs/21ADT06
https://www.nxtbook.com/smg/techbriefs/21ADT05
https://www.nxtbook.com/smg/techbriefs/21ADT04
https://www.nxtbook.com/smg/techbriefs/21ADT02
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