GED晶体详情介绍

GED晶振公司生产晶体坯料，从原材料石英棒到最终密封和经过充分测试的组件，用于我们的振荡器和分立晶体元件。
我们保持着养殖石英的库存，在许多情况下，其质量接近行业所能生产的最佳水平。我们控制所有制造过程，并确保支持这些过程的采购材料在不增加成本的情况下生产出具有额外质量和性能的成品。

特别注意生产的初期阶段。严格控制切割角度，高等级研磨剂，持续监测研磨板和石英晶振晶体坯料的平整度，以及在超过最低军事要求两倍的时间进行精确的化学蚀刻，所有这些都确保了锁定的高质量晶体。这些控制通过进一步的处理和最终的环境测试提供了额外的动力。
所有与晶体主表面电接触的电极都是使用特殊夹具在超纯、高真空镀膜机中通过真空沉积沉积的。这允许在晶体的一侧和另一侧之间具有电极的绝对配准的高体积。
光蚀刻掩模和纯基底涂层材料，如铝、铬、金和银，加上使用蒸发和电子束的高真空设备，可在晶体表面产生导电触点。这使得晶体的电场具有接近零的电阻和高能量捕获，并且具有最小的长期老化。贴片晶振晶体的最终频率调整完全在定制的高真空蒸发设备和我们最先进的自动化设备中完成。

几乎不需要或希望进行最终调整，因为在该过程中过量使用的额外金属量将降低晶体的整体性能并加剧杂散响应。
我们在GED有完全的密封能力，可以将我们的晶体包装成三种不同的风格中的任何一种，包括冷焊和电阻投影焊。我们每天可以从DIP石英晶体振荡器、HC-45、标准HC-49支架、特殊HC49/US支架、包括TO-5和TO-8在内的所有军用晶体封装以及表面安装封装中密封多达4000个单元，所有这些都在纯干燥的氮气环境中焊接。
我们的石英晶体和振荡器都经过100%的泄漏测试。

我们广泛使用各种类型的电子测试设备进行过程中和最终测试。军用、高Rel和商用型晶体在军用CI计以及计算机环境测试系统上进行测试，该系统可编程测量和记录频率、活动和杂散响应，低至-55°C，高至125°C。
GED的所有产品都通过激光或雕刻进行永久标记。我们所有的晶体和振荡器都有100%的保证，以满足或超过我们客户的规格。

General Electronic Devices manufactures crystal blanks from raw material quartz bars to final-sealed and fully tested components for use in our oscillators and discrete crystal elements.
We maintain an inventory of cultured quartz the quality of which, in many cases, approaches the best the industry can produce. We control all manufacturing process and assure that purchased material supporting those processes produced a finished product with extra quality and performance at no additional cost.
Special attention is given to the beginning stages of production. Tight control of the angle of cut, high grade lapping compounds, consistent monitoring of flatness of both lapping plates and crystal blanks and precise chemical etching at times exceeding two times the minimum military requirements all assure a locked-in, high quality performance crystal. These controls give that extra kick through further processing and final environmental testing.
All electrodes making electrical contact with the major surfaces of the crystal are deposited by vacuum deposition in ultra pure, high vacuum coating machines using special fixtures. This allows high volume with absolute registration of electrodes between one side of the crystal and the other.
Photo-etched masking and pure base coating materials such as Aluminum, Chrome, Gold and Silver – plus high vacuum equipment using evaporation and E-beam produce electrically conductive contact points to the crystal surface. These gives near zero resistance and high energy trapping of the crystal’s electric field with minimum long-term aging. Final frequency adjustment of the crystal is done exclusively in custom-made, high vacuum evaporation equipment and our new state-of-the-art automated equipment.
Little final adjustment is required or desirable because additional amounts of metal used in excess in this process will degrade the overall performance of the crystal and aggravate spurious responses.
We have total sealing capability at GED and can package our crystals in any of three different styles including cold weld and resistance projection welding. We can seal as many as 4,000 units a day from the DIP oscillator, HC-45, standard HC-49 holder, special HC49/US holder, all military crystal packages including TO-5 and TO-8 and surface mount packages – all welded in pure, dry nitrogen atmosphere.
Our quartz crystals and oscillators are all 100% tested for any leaking.
We make extensive use of various types of electronic test equipment for in-process and final testing. Military, High-Rel and commercial type crystals are tested on military CI meters, as well as on computerized environmental test system that can be programmed to measure and record frequency, activity and spurious responses from as low as minus 55°C to as high as 125°C.
All GED's product are marked permanently by laser or by engraving. All our crystals and oscillators are backed by a 100% guarantee to meet or exceed – the specifications of our customers.