Hardness of Electronic Package Material Hardness Value Table
| Material |
Rockwell |
Brinell |
Knoop |
Vickers |
Shore |
Mohs |
| Copper Film |
|
|
153.3 KP |
|
|
|
| Kovar (53Fe + 29 Ni + 17 Co) |
68.0 RW (B) |
120 |
|
|
|
|
| NEMA FR-4 Glass Fiber/Epoxy Composite |
110.0 RW |
|
|
|
|
|
| Aluminum Film |
|
|
|
0.587 VR |
|
|
| Diamond Film |
|
|
65 GPa |
72.8 VR (29 - 118 Gpa) |
|
|
| Tungsten Film |
|
|
|
19.885 VR |
|
|
| Alumina, Al(2)O(3) |
|
|
|
19.81 VR |
|
9 |
| Aluminum Nitride |
|
|
|
12.20 VR |
|
|
| Silicon Nitride |
|
|
|
17.46 VR |
|
|
Table. Hardness values of common packaging materials
KP: Knoop Hardness ; RW : Rockwell Hardness ; VR : Vickers Hardness, b: glass or mineral filled, c: casting/liquid resins
|
