Product Description
Bicrystalline substrates are used for the creation of the Josephson transitions on high-temperature superconductor films. The tapes for the bicrystals are grown onto a bicrystalline seed. The orientation of the wide plane is [1102] the growth direction being [1102].
The bicrystalline angle is equal to 2 × 14° [10] . The production of laser diodes and super-bright blue and green light-emitting diodes (LEDs)is in rapid development. Similar rapid growth is observed for their application fields – from traffic lights to the treatment of patients suffering.
Although there are lots substrates which are regarded as potential materials to replace sapphire substrate, it is still dominated in the substrates (for GaN LED growth) market, because of its reasonable price and relatively low mismatch.
Zhongju is capable of processing substrates according to customer needs. Currently, our sapphire substrate productions ranges from 2 to 12 inches with high quality and accurate orientation.
Table 1 Size of substrates
|
|
2 inches Substrates |
4 inches Substrates |
6 inches Substrates |
|
Diameter (mm) |
50.9±0.1 |
100.1±0.1 |
150.1±0.1 |
|
Primary Flat Length (mm) |
16±1 |
31±1 |
47.5±1 |
Table 2 Specification of substrates
|
Material |
High purity single crystal sapphire |
|
Surface Orientation |
C-plane ± 0.1° |
|
Primary Flat Orientation |
A-plane ± 0.5° |
|
Broken edge length |
≤3mm |
|
Crack |
0 |
|
Defect |
No inclusion，twin，or boundary |
|
Bubble and cloud |
Dense bubbles, clouds, and scattered bubble marked and counted as defects by length |
|
EPD |
≤1000 pits/cm2 |
CONTACT US
ShanXiZhongJuJingKe Semiconductor Co., Ltd
Contact Person: yang
Phone：86-0354-3051057
Fax：
Address: No.2, machinery park, huitong industrial park, jinzhong development zone, shanxi demonstration zone,Jinzhong,Shanxi
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