Crucible Products
Quartz Crucibles
Trusted. Versatile. Superior.
In the manufacture of silicon wafers for semiconductor applications, polysilicon starting materials are placed in a fused quartz crucible, heated to high temperatures and pulled from the melt as a single crystal. Fused quartz is the oxide of the silicon molten in it, minimizing contamination concerns, and one of the few materials that can combine the high purity and high temperature properties required.
Key Features
- Customizable by dimension, purity, bubble content and coating to meet specific customer needs
- Regional sales offices worldwide ensure responsive and attentive local support
- Available from 14 to 36 inches in diameter to accommodate a wide range of hot zone designs
Potential Applications
- Semiconductor silicon ingot growth
- Semiconductor equipment parts
- Firing of various materials
- Belljar
Schematic of Crucible
Crucible Types
For semiconductor application
Momentive Technologies offers a variety of compositions, from natural to synthetic silica materials. A wide variety of customizable designs and coatings are available to optimize cost of ownership.
| Grades | Description |
|---|---|
|
530-595 |
Natural sand grade – MT Germany, MT China |
|
541 |
Synthetic silica inner surface – MT Germany |
|
T230-T240 |
Natural sand grade – MT Yamagata |
For optical glass application
Momentive Technologies offers customizable properties such as bubble content to optimize optical transmission and inner surface glass quality.
| Grades | Description |
|---|---|
|
T200 |
Synthetic silica inner surface – MT Yamagata |
Standard Sizes
| Size | OD | W1 | W2 | W3 | R1 | R2 |
|---|---|---|---|---|---|---|
|
14″ |
363 ± 3 |
8 ± 3 |
8 ± 3 |
8 ± 3 |
381 |
90 |
|
16″ |
404 ± 3 |
9 ± 3 |
9 ± 3 |
9 ± 3 |
406 |
90 |
|
18″ |
457 ± 3 |
10 ± 3 |
10 ± 3 |
10 ± 3 |
457 |
90 |
|
20″ |
507 ± 3 |
10 ± 3 |
10 ± 3 |
10 ± 3 |
507 |
100 |
|
22″ |
556 ± 3 |
10 ± 3 |
10 ± 3 |
10 ± 3 |
558 |
110 |
|
24″ |
607 ± 3 |
12 ± 3 |
15 ± 3 |
12 ± 3 |
610 |
120 |
|
28″ |
708 ± 4 |
13 ± 4 |
15 ± 4 |
13 ± 4 |
708 |
140 |
|
32″ |
809 ± 4 |
14 ± 5 |
23 ± 5 |
15 ± 5 |
810 |
160 |
|
36″ |
909 ± 5 |
17 ± 4 |
28 ± 5 |
17 ± 4 |
910 |
180 |
The information provided in these charts is for informational purposes only. It is not a product or material recommendation and it is shared with you on the express condition that you will use your own expertise and professional judgment in applying any information to a specific use case or need. This is general information only, the validity of which may be affected by individual factors that are unknown to Momentive Technologies. It is the responsibility of those using this information to ensure appropriate interpretation and application is undertaken with regards to any specific situation.
