super-large

large

medium

small

3/09/2022

Improved Thermal Interface Materials
for Cooling High-Power Electronics

Aismalibar says

Heat has been a significant concern in electronics since the beginning of the electronics age when hot glowing vacuum tubes were first used to receive and transmit data bits. The transistor and integrated circuit effectively solved that basic problem, but increases in integration resulted in increased concentration of heat, exacerbated by relentless increases in operating frequency. While improvements in electronics technology have been able to mitigate many thermal issues at chip level thanks to improved semiconductor designs devised to operate at lower voltages (thus requiring less energy) the thermal management challenge continues to vex electronic product developers.

Moreover, with ever denser heterogeneous integration solutions now being introduced, this is expected to remain a concern to Improved Thermal Interface Materials for Cooling High-Power Electronics be addressed for the foreseeable future. Thermal engineers have long known that thermal energy must ultimately be “returned to the air” but getting it there in an efficient way is of great importance. They know also that there are but three basic ways of removing heat from a system: conduction, convection, and radiation; of these, conduction is by far the most efficient.

Thermal Interface Material Solutions

A recent development, underpinning Aismalibar’s new TIM concepts, is a new coating technology referred to by the company as its “air gap filler,” which in addition to its excellent thermal and electrical insulation properties, the need to employ an often complex and messy TIM thermal paste application.

A key objective of the air gap filler product is to eliminate voids which otherwise can result in “hot spots” at the interface.

Discover the full article at IConnect007

Other news

BOND SHEET CURED + AIR GAP FILLER

Ultra-thin dielectric layer, high dielectric strength,
high thermal conductivity and low thermal resistance.
Montaje_1

Air Gap Filler μm (mils)

50(2,0)

Bond Sheet Cured μm (mils)
70(2,8) 80(3,1) 100(3,9)

Air Gap Filler μm (mils)
50(1,2)

Air Gap Filler μm (mils)
50(2,0)

Bond Sheet Cured μm (mils)
70(2,8)
80(3,1)
100(3,9)

Total thickness
Dielectric capacity
Thermal resistance Rth
Thermal conductivity
Bond Sheet Cured 70µm (ASTM 5476)
70 µm
4 KV
0,041 K/W
2,2 W/mK
Technical data sheet
Bond Sheet Cured 100µm (ASTM 5476)
100 µm
6 KV
0,058 K/W
2,2 W/mK
Technical data sheet
Bond Sheet Cured 70µm + Air Gap Filler
120 µm
4,2 KV
0,07 K/W
2,2 W/mK
Technical data sheet
Bond Sheet Cured 100µm + Air Gap Filler
150 µm
6,2 KV
0,088 K/W
2,2 W/mK
Technical data sheet
Air gap filler + Bond Sheet Cured 70µm + Air gap filler
170 µm
4,4 KV
0,099 K/W
2,2 W/mK
Technical data sheet
Air gap filler + Bond Sheet Cured 100µm + Air gap filler
200 µm
6,4 KV
0,117 K/W
2,2 W/mK
Technical data sheet
Bond Sheet Cured 80µm High Tg (ASTM 5476)
80 µm
4 KV
0,031 K/W
3,2 W/mK
Technical data sheet
Bond Sheet Cured 80µm High Tg + Air gap filler
130 µm
4,2 KV
0,051 K/W
3,2 W/mK
Technical data sheet
Air gap filler + Bond Sheet Cured 80µm HTg + Air gap filler
180 µm
4,4 KV
0,070 K/W
3,2 W/mK
Technical data sheet
Dielectric capacity Dielectric capacity Thermal resistance Rth Thermal resistance Rth Thermal conductivity Thermal conductivity
Bond sheet cured 70µm (ASTM5476)
Total thickness
70µm
Dialectric capacity
4KV
Thermal resistance Rth
0,041K/W
Thermal conductivity
2,2W/mK
Technical data sheet
Bond Sheet Cured 100µm (ASTM 5476)
Total thickness
100µm
Dialectric capacity
6KV
Thermal resistance Rth
0,058K/W
Thermal conductivity
2,2W/mK
Technical data sheet
Bond Sheet Cured 70µm + Air gap filler
Total thickness
120µm
Dialectric capacity
4,2KV
Thermal resistance Rth
0,07K/W
Thermal conductivity
2,2W/mK
Technical data sheet
Bond Sheet Cured 100µm + Air gap filler
Total thickness
150µm
Dialectric capacity
6,2KV
Thermal resistance Rth
0,88K/W
Thermal conductivity
2,2W/mK
Technical data sheet
Air gap filler + Bond Sheet Cured 70µm + Air gap filler
Total thickness
170µm
Dialectric capacity
4,4KV
Thermal resistance Rth
0,99K/W
Thermal conductivity
3,2W/mK
Technical data sheet
Air gap filler + Bond Sheet Cured 100µm + Air gap filler
Total thickness
200µm
Dialectric capacity
6,4KV
Thermal resistance Rth
0,117K/W
Thermal conductivity
3,2W/mK
Technical data sheet
Bond Sheet Cured 80µm High Tg (ASTM 5476)
Total thickness
80µm
Dialectric capacity
4KV
Thermal resistance Rth
0,031K/W
Thermal conductivity
3,2W/mK
Technical data sheet
Bond Sheet Cured 80µm High Tg + Air gap filler
Total thickness
130µm
Dialectric capacity
4,2KV
Thermal resistance Rth
0,051K/W
Thermal conductivity
3,2W/mK
Technical data sheet
Air gap filler + Bond Sheet Cured 80µm High Tg + Air gap filler
Total thickness
180µm
Dialectric capacity
4,4KV
Thermal resistance Rth
0,070K/W
Thermal conductivity
3,2W/mK
Technical data sheet
Bond sheet cured 70µm (ASTM5476)
Total Thickness
70 µm
Dialectric capacity
4 KV
Thermal resistance Rth
0,041K/W
Thermal conductivity
2,2W/mK
Technical data sheet
Technical data sheet
Bond Sheet Cured 100µm (ASTM5476)
Total Thickness
100 µm
Dialectric capacity
6 KV
Thermal resistance Rth
0,058 K/W
Thermal conductivity
2,2 W/mK
Technical data sheet
Technical data sheet
Bond Sheet Cured 70µm + Air gap filler
Total Thickness
120 µm
Dialectric capacity
4,2 KV
Thermal resistance Rth
0,07 K/W
Thermal conductivity
2,2 W/mK
Technical data sheet
Technical data sheet
Bond Sheet Cured 100µm + Air gap filler
Total Thickness
150 µm
Dialectric capacity
6,2 KV
Thermal resistance Rth
0,88 K/W
Thermal conductivity
2,2 W/mK
Technical data sheet
Technical data sheet
Air gap filler + Bond Sheet Cured 70µm + Air gap filler
Total Thickness
170 µm
Dialectric capacity
4,4 KV
Thermal resistance Rth
0,99 K/W
Thermal conductivity
3,2 W/mK
Technical data sheet
Technical data sheet
Air gap filler + Bond Sheet Cured 100µm + Air gap filler
Total Thickness
200 µm
Dialectric capacity
6,4 KV
Thermal resistance Rth
0,117 K/W
Thermal conductivity
3,2 W/mK
Technical data sheet
Technical data sheet
Bond Sheet Cured 80µm High Tg (ASTM 5476)
Total Thickness
80 µm
Dialectric capacity
4 KV
Thermal resistance Rth
0,031 K/W
Thermal conductivity
3,2 W/mK
Technical data sheet
Technical data sheet
Bond Sheet Cured 80µm High Tg + Air gap filler
Total Thickness
130 µm
Dialectric capacity
4,2 KV
Thermal resistance Rth
0,051 K/W
Thermal conductivity
3,2 W/mK
Technical data sheet
Technical data sheet
Air gap filler + Bond Sheet Cured 80µm High Tg + Air gap filler
Total Thickness
180 µm
Dialectric capacity
4,4 KV
Thermal resistance Rth
0,070 K/W
Thermal conductivity
3,2 W/mK
Technical data sheet
Technical data sheet

ALPRIMER (ISOLAL)

Aluminum laminate coated with a thermal conductive ultra-thin dielectric layer.

Imagen1

Insulation thickness µm (in)

100(3,9)

Aluminium thickness um (In)

1000 (0.039)/ 1500 (0.059)/2000(0.078)/3000 (0.12)

Dielectric capacity (KV)
ALP
6
Technical Data Sheet

BOND SHEET CURED + THERMAL TAPE

Adhesive film with thermal transmission combined with an ultra-thin dielectric layer.

Thermal Tape um (mllc)

50 (1.9)

Dielectric thickness µm (mlic)

70(2,8)/80(3,1) / 100(3,9)

Total Thickness (µm)
Dielectric capacity (KV)
Thermal Resistance Rth (K/W)
Thermal Conductivity
Bond Sheet Cured 70µm + Thermal Tape
120
4,5
0,09
2,2 W/mk
Technical Data Sheet
Bond Sheet Cured 100µm + Thermal Tape
150
6,5
0,107
2,2 W/mk
Technical Data Sheet
Air Gap Filler + Bond Sheet Cured 70µm + Thermal Tape
170
4,7
0,119
2,2 W/mk
Technical Data Sheet
Air Gap Filler + Bond Sheet Cured 100µm + Thermal Tape
200
6,7
0,136
2,2 W/mk
Technical Data Sheet
Bond Sheet Cured 80µm High Tg + Thermal Tape
130
4,5
0,08
3,2 W/mK
Technical Data Sheet
Air Gap Filler + Bond Sheet Cured 80µm High Tg + Thermal Tape
180
4,7
0,099
3,2 W/mK
Technical Data Sheet