京瓷石英晶体制造工艺(英文版)
从培育人工水晶到生产晶体谐振器、晶体振荡器,京瓷晶振集团作为业内领先的大企业,贯彻一条龙式的研发与生产,面向全球市场提供大量石英贴片晶振产品.至始至终京瓷都发挥集团的综合实力,用独有的技术和视角实现符合时代与市场要求社会价值.下面所介绍到的是京瓷石英晶体制造工艺(英文版).
Quartz Crystal Units Manufacturing Process |
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Synthetic Crystal |
This is a product made by fusing Lasca and growing a seed quartz crystal under high temperature and high pressure condition (at 350?C: and 1,000 atmospheric pressure in a container called synthetic crystal growing furnace (Autoclave) filled with alkaline solution. It usually requires 40 to 90 days to grow. |
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Lumbered |
Grind axial plane of X, Y and Z of synthetic quartz crystal to define crystal axes. |
Cutting |
Cut the synthetic quartz crystal at the prescribed cut angle. The frequency temperature characteristics will be determined by the angle. |
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Cutting |
Cut & lap a block to make wafers |
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Lapping |
Lap quartz crystal (cut at wafer cutting process) to the extent of the prescribed thickness. Lap the quartz crystal to the extent of the prescribed frequency. |
Cutting |
After pasting together the thickness lapped quartz crystal, process them to the prescribed dimensions. |
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Beveling |
Lap edges of each piece of crystal blank so as to bring the vibration to the center area. (Generally, applied to the quartz crystal whose frequency is less than 10 MHz.) |
Etching |
Remove the processed layer during the lapping process chemically, boost the frequency accuracy simultaneously and wash the chemical solution later. |
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Electrode Base Plating•Assembly |
Put the washed quartz crystal blank in evaporation mask and form silver electrode in high vacuum chamber. Then the quartz crystal blank is mounted on a holder and fixed by conductive adhesive. |
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Frequency Adjustment•Sealing |
Adjust the frequency of the assembled quartz crystal blank to the target frequency in high vacuum. To prevent the deterioration of the etching characteristics, the cap is sealed in the nitrogen or in the vacuum. |
Final Inspection |
Inspect the characteristics of hermeticness, insulation,frequency characteristics, impedance, etc. |
京瓷的第一个字母“K”环起了陶瓷晶振这一英文的第一个字母“C”,它由象征追求更广阔的领域,展翅面向未来的企业商标和企业标识构成.1982年10月,公司由“京都陶瓷株式会社”变更为“京瓷株式会社”之际,便开始启用这一标识.作为象征性标记的颜色,选择了富有热情和挑战意味的红色.
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