Product Class : Quartz Crystal Element·Quartz Crystal
Anhui Hooray Electronics co., Ltd is acompany which is set up by the investment of Anhui Tongfeng Electronicscompany to specializing in producing artificial quartz crystal andcrystal blanks. It was set up in 2001 with first stage investment ofRMB Yuan 50 million to build up national biggest building for quartzcrystal growth. It can occupy 160 autoclaves ,110 autoclaves of themwith national bigger diameter，90 in diameter ￠300mm and 20 in diameter￠330mm，lt has adopted 5-point temp-controlling automaticallyequipments, Our company can produce all kinds of optocrystal 50 tonsper year, It has been now the No.1 manufacturing enterprise nationwide.Currently , The second Stage is in progress, it is expected that itwill has the capacity to produce all kinds of optocrystal 100 tons peryear up to 2005. Our company insists on market-oriented policyand obeys the rule of customer-first to develop optocrystal products tosatisfy the customers. It has established good quality guaranteesystem, According to the IEC standard, now we have get the followingquality index—Inclusion: Ia、 optical uniformity: Grade A、Etch channeldensity＜100 pcs/cm2. And we have quartz crystal inspection Lab withfull category inspection equipments and inspection projects around thecountry. There are two kinds of synthetic crystal products in our company
They are single-sided growth optical crystal & double-sided growth SAW crystal respectively
1、 Definition 1.1Single-sided growth optical crystal
Optical crystal which grows alongside the single-side of Z-surface of seed 1.2Double-sided growth SAW crystal
SAW crystal which grows alongside the double-side of Z-surface of seed 2、 Dimension
Products of our company are as follows
Single-sided growth optical crystal TYPE | DIMENSION | X±1mm | Z±2mm | Y±5mm | ZB。-55 | 56 | 24-50 | 205 | ZB。-70 | 70 | 24-50 | 205 | ZB。-75 | 75 | 24-50 | 205 | ZB。-80 | 80 | 24-50 | 205 |
Double-sided growth SAW crystal TYPE | DIMENSION | X±1mm | Z±2mm | Y±5mm | ZB。-65 | 65 | 45-80 | 240-270 | ZB。-70 | 70 | 45-80 | 240-270 | ZB。-75 | 75 | 45-80 | 240-270 | ZB。-80 | 80 | 45-80 | 240-270 |
Special specifications are available 3、 Technical term 3.1 HANDEDNESS
Right--handed unless otherwise specified 3.2 TWINNINGS
allowed in usable zones 3.3 INCLUSIONS
In usable zones the size and numbers of inclusions allowed per cm 3 are as follows μm | cm3 | 10~30 | 30~70 | 70~100 | ＞100 | Ⅰa | 2 | 1 | 0 | 0 | Ⅰb | 3 | 2 | 1 | 1 | Ⅰ | 6 | 4 | 2 | 2 | Ⅱ | 9 | 5 | 4 | 3 | Ⅲ | 12 | 8 | 6 | 4 |
3.4 Q-VALUE Q-value shall be converted from α-3585 value measured with infrared ray method according to the provisions of IEC 758.V.2.
| α-3585 value | Q-value | A | 0.024 max. | 3.0×106min. | B | 0.050 max. | 2.4×106min. | C | 0.069 max. | 1.8×106min. |
3.5 ETCH CHANNEL DENSITY
Detch is graded as followsGrade | Detch(1/cm2) | 1 | <10 | 2 | <30 | 3 | <100 | 4 | <200 | 5 | <300 |
3.6OPTIC UNIFORMITY
Along side the optic axis according ting deviation of the refractivityGrade | △n | A | ≤2×10-6 | B | ≤5×10-6 | C | ≤1×10-5 |
3.7GROWTH TAYER No growth layer shall be allowed in synthetic optical crystal
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