万士和

Tangshan Wanshihe Electronics Co., Ltd.-A Scene of Factory Building

Tangshan Wanshihe Electronics Co., Ltd. was founded in September 2003. It is a high-tech enterprise specializing in piezoelectric sensors and film thickness monitoring quartz crystal vibrators. In 2017, the leading product film thickness monitoring quartz crystal vibrators accounted for about 40% of the Chinese market. share.

County leaders visited "Tangshan Wanshihe Electronics Co., Ltd." to inspect the work

County leaders visited our company to inspect the work and gave guiding suggestions. Wang Lijuan, chairman of Tangshan Wanshihe Electronics Co., Ltd., and Li Jian, product director, explained the company's development history, product advantages, corporate philosophy, etc.

Crystal vibration plate use and maintenance

Whether the crystal vibrator should be changed depends on the following aspects: 1.ACT size is generally larger than 400; 2.Life size, which is divided into increase and decrease and is related to the plated products. Whether the service life has reached, the general service life should be changed from about 99% to 90-92%; 3. If the RateDEV is greater than about 10%, it should be changed. If the evaporation rate is obviously abnormal, it should be changed at this time; 4. Surface quality, the surface of the crystal vibration plate is obviously film shedding or peeling phenomenon should also be replaced. 5. The sensitivity of crystal oscillator decreases with the increase of quality, so that when using quartz crystal monitoring method (crystal control method)

How to choose the right crystal oscillator?

Coating technology is changing with each passing day. For coating engineers, it is really not easy to choose a good crystal oscillator according to different coating processes. The following suggestions for your reference: 1) When plating low-stress film materials, the common coatings for gold-plated crystal vibrators are Al, Au, Ag and Cu. These films have almost no stress and can be coated at room temperature. The film is soft and easy to scratch, but it will not crack or have a negative effect on the substrate. It is recommended to use gold-plated crystal oscillator for the above coating. Experience has proved that gold-plated crystal oscillator can be plated with 60000 angstroms of gold and 50000 angstroms of silver.

Crystal vibration plate installation and precautions and skills

With the increasingly strict requirements of coating specifications, it is difficult to meet the requirements by light control alone. Crystal oscillator control has become a necessary auxiliary or control method for coating. How to correctly and effectively use crystal oscillator has become the focus of ensuring coating quality. So in order to make the long life of the crystal oscillator, the following methods and techniques for your reference: 1. Always use the camera to hold the edge of the crystal oscillator, do not touch the center of the crystal oscillator, because the active center of the crystal oscillator vibration, any ash layer, oil will reduce the vibration ability of the crystal oscillator. The new crystal oscillator should be soaked in alcohol (analytically pure) for about 1 minute before use, and then clamped with plastic tweezers and dust-free