Due to evolving technology and increased performance demands, alternative laminates are being required to fabricate high frequency printed circuit boards. Previous designs have required standard "pure" laminates such as FR4, Getek or Polyimide. However, many customers on the leading edge of technology are now calling out for a combination of materials, known as "hybrids" in their designs. The following are laminates Westak currently uses as a standard process or are in the research and development stage.

1. Standard FR-4

Material

Manuf.

Product

Process

UL

Tg

Td

DK

Tetrafunctional

Isola

PCL-FR-226

Std

Yes

145°C

310°C

4.5

Multifunctional

Isola

FR-404

Std

Yes

135°C

310°C

4.5

Multifunctional

Nelco

N4000-2

Std

Yes

135°C

310°C

4.5

2. Lead Free

Material

Manuf.

Product

Process

UL

Tg

Td

DK

Tetrafunctional II

Isola

PCL-FR-370

Std

Yes

170°C

310°C

4.5

Multifunctional

Isola

FR-406

Std

Yes

170°C

310°C

4.5

Multifunctional

Nelco

N4000-6

Std

Yes

180°C

310°C

4.5

Tetrafunctional

Isola

PCL-FR-250HR

Std

No

150°C

340°C

4.5

Tetrafunctional

Isola

PCL-FR-370HR

Std

Yes

180°C

340°C

4.5

Multifunctional

Isola

IS 410

Std

Yes

180°C

340°C

4.5

Multifunctional

Nelco

N4000-11

Std

No

180°C

340°C

4.5

3. Halogen Free

Material

Manuf.

Product

Process

UL

Tg

Td

DK

Halogen Free epoxy

Isola

PCL-HF-571

Std

No

150°C

N/A

4.5

Halogen Free epoxy

Nelco

N4000-7EF

Std

No

165°C

N/A

4.5

Halogen Free epoxy

Isola

IS 500

Std

No

150°C

N/A

4.5

4. Special

Material

Manuf.

Product

Process

UL

Tg

Td

DK

Polyphenylene Oxide (PPO)

Isola

GETEK

Std

Yes

180°C

N/A

3.8

Modified Epoxy

Isola

FR-408

Std

Yes

180°C

N/A

3.6

Cyanate Ester/Epoxy

Nelco

N4000-13

Std

Yes

185°C

N/A

3.8

Polyphenylene Ether (PPE)

Isola

LD-621

Std

No

210°C

N/A

3.6

Polyphenylene Ether (PPE)

Isola

Gigaver

Std

No

210°C

N/A

3.6

Polyphenylene Ether (PPE)

Nelco

N6000

Std

No

210°C

N/A

3.6

Hydrocarbon/Ceramic

Rogers

RO-4350

Std

No

280°C

N/A

3.48

Hydrocarbon/Ceramic

Rogers

RO-4003

Std

No

280°C

N/A

3.48

Hydrocarbon

Isola

IS 640ML

Std

No

220°C

N/A

3.45

Aromatic/Polyolefin

Arlon

25N

Std

No

225°C

N/A

3.28

Teflon

Arlon

Diclad

Special

No

N/A

N/A

2.2-3.0

Teflon

Rogers

Ultralam

Special

No

N/A

N/A

2.2-3.0

Teflon

Taconic

TLY

Special

No

N/A

N/A

2.2-3.0

BT Epoxy

Isola

PCL-GI-180

Std

No

200°C

N/A

4.5

BT Epoxy

Nelco

N5000

Std

No

200°C

N/A

4.5

BT Epoxy

Isola

G200

Std

No

200°C

N/A

4.5

Polyimide

Isola

PCL-GI-789

Special

No

260°C

405°C

4.5

Polyimide

Nelco

N7000-2V0

Special

No

220°C

405°C

4.5

Polyimide

Isola

P96

Special

No

260°C

405°C

4.5