Coating Materials for Electronic Applications: Polymers, Processes, Reliability, Testing

Appendix

CONVERSION FACTORS

Table A.01: Thermal Conductivity Units and Equivalents

Cal/(sec cm C)

BTU/(hr ft F)

W/(m.K)

W/(cm C)

W/(in C)

1

241.9

418.6

4.186

10.63

4.13 10 -3

1

1.73

0.0173

0.044

2.39 10 -3

0.578

1

0.01

0.0254

0.239

57.8

100

1

2.54

0.094

22.74

39.4

0.394

1

Table A.02: Dimension Units and Equivalents

Mil

Inch

Centimeter

Millimeter

Angstrom

Micrometer

Microinch

1

0.001

0.00254

0.0254

254,000

25.4

1000

1000

1

2.54

25.4

2.54 10 8

25,400

1 10 6

394

0.394

1

10

1 10 8

1 10 4

3.94 10 5

39.4

0.0394

0.1

1

1 10 7

1 10 3

3.94 10 4

3.94 10 -6

3.94 10 -9

1 10 -8

1 10 -7

1

1 10 -4

3.94 10 -3

0.0394

3.94 10 -5

1 10 -4

0.001

10,000

1

39.4

0.001

1 10 -6

2.54 10 -6

2.54 10 -5

254

0.025

1

Table A.03: Pressure and Force Conversion Factors

To Convert From:

To:

Multiply By:

Pascals (Pa)

pounds per in 2 (psi)

1.45 10 -4

Pounds

Newtons

4.44

Dynes/cm 2

pounds per in 2 (psi)

1.45 10 -5

Newtons/mm 2

GigaPascals (GPa)

1 10 -3

MPa

Newtons/mm 2

1

Pascals [Pa]

Dynes/cm 2

10

Table A.04: Viscosity Conversion Factors

To Covert From:

To:

Multiply by:

Poise

Centipoises

100

Centipoises

Poise

0.01

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