Lanthanum Aluminate LaAlO3 single crystal substrate

Major capability parameter

Crystal structure

M6（normal  temperature）

M3（>435℃）

Unit cell constant

M6 a=5.357A   c=13.22 A

M3 a=3.821 A

Melt point（℃）

2080

Density

6.52（g/cm3）

Hardness

6-6.5（mohs）

Thermal expansion

9.4x10-6/℃

Dielectric constants

ε=21

Secant loss（10ghz)

～3×10-4@300k,～0.6×10-4@77k

Color and appearance

To anneal and conditions differ from brown to brownish

Chemical stability

Room temperature is not dissoluble in minerals, the temperature is greater than 150 ℃ in soluble h3po4

Characteristics

For microwave electron device

Growth method

Czochralski method

Size

10x3，10x5，10x10，15x15，，20x15，20x20，

Ф15,Ф20，Ф1″，Ф2″,Ф2.6″

Thickness

0.5mm，1.0mm

Polishing

Single or double

Crystal Orientation

＜100＞  ＜110＞  ＜111＞

redirection precision

±0.5°

Redirection the edge:

2°（special in 1°）

Angle of crystalline

Special size and orientation are available upon request

Ra:

≤5Å（5µm×5µm）

Pack

100 clean bag，1000 exactly clean bag