QuartzCom crystal specializes in small and medium batches of special crystal oscillators
In the past, coftech purchased oscillating crystals for its own production of VC-TCXO crystals and other oscillators in Japan. For example, cofftech supplied QuartzCom, based in Grenchen, Switzerland, with precision crystals from Japan. They are used in high quality oscillators in base stations for mobile communications, radar, measuring instruments and GPS devices. However, the supply of quartz crystals required for these high-quality oscillators will be difficult in the future. This is because small batch quartz production with different frequencies is no longer attractive to large Japanese quartz manufacturers. In order to accommodate the demands of high production volumes, such as consumer goods markets, Japanese manufacturers have stopped producing precision quartz crystals, which are not very profitable for them.
To secure its own quartz crystal sourcing, QuartzCom invested in a family-run Japanese company that specializes in these quartz crystals. To that end, the Swiss company is building a new production line and has purchased modern machines that are currently being installed. Production is scheduled to begin in the third quarter of this year.
The line will focus on package sizes of 7mm × 5mm, 6.0mm × 3.5mm and 5.0mm × 3.2mm, which are very strict requirements for quartz crystal tolerances. In addition to AT cutting, SC, IT or quartz blanks with special cutting angles are used. - In the future, QuartzCom will produce a new generation of "QC-MESA" type TCXO. The "old" IC was discontinued due to a production fire at IC manufacturer AKM, which produces ics for (VC) TCXO. The new generation of integrated circuits requires higher crystal performance than before. A quartz crystal, in which the inner quartz disk (blank) is no longer simply flat and has rectangular electrodes, but has structures, steps and depressions.技術支持
Must be connected with round or oval electrodes. The structures were not wet-etched as usual, but dry-etched using a magnetron plasma process developed in Japan. This can increase frequency stability, reduce hysteresis, and eliminate or suppress frequency hops (micro-hops). Difficult designs are possible, the resistance can be significantly reduced and the q factor can be increased, which can improve the short-term stability of the oscillator. In order to reduce costs, we plan to make full use of production capacity and supply some competitors who have and will cooperate.
With these oscillating crystals, QuartzCom can take full advantage of all components in oscillator manufacturing. One of its characteristics is the vibration stability of its products. As a result, devices using oscillators from QuartzCom will never lose GPS signals. This also applies to GPS units exposed to extremely strong vibrations in tractors. Together with engineers produced in Japan, QuartzCom crystal Oscillator optimizes the cutting Angle and size of the quartz blank. In a further step, the oscillator is calibrated in a temperature chamber where the installed integrated circuit is coaxed out of its final potential. In-house software has been developed for this purpose. QuartzCom's high-end products are now used by companies all over the world, not only in the European Union, but also in China, India, Israel and the United States. QuartzCom therefore serves a special niche market: crystals and oscillators of special frequencies for small and medium volume production. In doing so, the company guarantees that the oscillator will work perfectly even under extreme conditions.

QuartzCom專業提供中小批量的特殊晶振
過去，coftech購買振蕩晶體用于自己在日本生產VC-TCXO晶振和其他振蕩器。例如，cofftech向總部位于瑞士Grenchen的QuartzCom提供了來自日本的精密晶體。它們用于移動通信，雷達，測量儀器和GPS設備的基站中的高質量振蕩器。然而，這些高質量振蕩器所需的石英晶體的供應在未來將是困難的。這是因為不同頻率的小批量石英生產對大型日本石英制造商不再具有吸引力。為了適應高產量，比如消費品市場的需求，日本制造商已經停止了精密石英晶體的生產，這對他們來說不是很有利可圖。
為了確保自己的石英晶振采購，QuartzCom投資了一家家族經營的日本公司，專門從事這些石英晶體。為此，這家瑞士公司正在建造一條新的生產線，并已經購買了現代化的機器，目前正在安裝。生產計劃于今年第三季度開始。
該生產線將專注于7mm × 5mm、6.0 mm × 3.5 mm和5.0 mm × 3.2 mm的封裝尺寸，這是石英晶體公差非常嚴格的要求。除了AT切割外，還使用SC, IT或特殊切割角度的石英毛坯。-未來，QuartzCom將生產新一代“QC-MESA”型TCXO。由于生產用于(VC) TCXO的IC的IC制造商AKM的生產火災，“舊”IC停產。新一代集成電路對晶體性能的要求比以前更高。石英晶體，其中內部石英盤(空白)不再是簡單的平坦并具有矩形電極，而是具有結構，臺階和凹陷。
必須用圓形或橢圓形電極連接。這些結構不是像往常一樣濕蝕刻，而是使用日本開發的磁控管等離子體工藝干蝕刻。這樣可以增加頻率穩定性，減少遲滯，消除或抑制頻率跳變(微跳變)。困難的設計是可能的，電阻可以顯著降低，q因子可以增加，從而可以提高振蕩器的短期穩定性。為了降低成本，計劃充分利用產能，供應一些已經和將要合作的競爭對手。
有了這些振蕩晶體，QuartzCom可以在振蕩器制造中充分利用所有組件。其特點之一是其產品的振動穩定性。因此，使用來自QuartzCom的振蕩器的設備永遠不會丟失GPS信號。這也適用于在拖拉機中暴露在極端強烈振動中的GPS裝置。與日本生產的工程師一起，QuartzCom晶振優化了石英毛坯的切割角度和尺寸。在進一步的步驟中，振蕩器在溫度室中進行校準，其中已安裝的集成電路被哄出其最終電位。為此目的開發了內部軟件。現在世界各地的公司都在使用QuartzCom歐美晶振的高端產品，不僅在歐盟，而且在中國，印度，以色列和美國。因此，QuartzCom服務于一個特殊的利基市場:用于中小批量生產的特殊頻率的晶體和振蕩器。在這樣做的過程中，公司保證即使在極端條件下，振蕩器也能完美地工作。

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QuartzCom specializes in small quantities of special crystal oscillators

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