MIM is a sandwich structure composed of a metal, insulator, and metal three-layer film. The MIM structure for liquid crystal display is shown in Figure 1. There are two main types: (1) Figure 1 (a) is a relatively common "T" structure. The process of this structure is relatively simple, and the MIM developed in the early stage is basically this form. However, the MIM area of ​​this structure is relatively large, and has a large parasitic capacitance, which is disadvantageous for improving contrast and improving display quality. If you want to reduce the area, you need a large area, high resolution lithography equipment. Not only does it increase the difficulty of the production process, the yield rate decreases, but also increases the cost, and is not suitable for large-scale display. (2) Figure 1 (b) shows the lateral MIM structure developed, which is formed laterally on the scan line.
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MIM decisive action
The M IM component is characterized by a non-linear change in its volt-ampere characteristics. LCD display is the use of this feature of MIM. When the applied bias voltage reaches a certain value V (closed voltage), the electrical conductivity of the MIM changes abruptly and rapidly changes from the insulated state to the conductor state. The current through the MIM also increases rapidly. MIM is in the "on" state. When the applied bias voltage on the MIM is less than VT, the MIM returns to its original state and the MIM is in the "lizard" state. The insulation properties of the insulation are not damaged throughout the "pass," "lizard" process. Figure 2 shows the volt-ampere characteristic of MrM.
MIMI communication mechanism
Therefore, under the action of a strong field, a large amount of electrons on the donor level enter the insulating layer conduction band. And avalanche breakdown occurs under the action of a strong field. The relationship between its volt-ampere characteristics can be expressed by the formula (1). For the MIM whose insulating layer is Ta zO, the 13 PF value of the MIM obtained in the actual work does not conform to the PooIe-Frenkel3L~ argument and conforms to Schottky's theoretical value s (13 PF).
=2 13 s). The appearance of this abnormal Poole-Frenke1 effect is mainly due to the existence of only neutral trap levels in the Ta zO film, so the Poole-F reakel effect cannot be exhibited. In this case, the conductivity is also low. In order to solve this problem, a deep donor level must be formed in the Ta:O film by a heat treatment process to meet the requirements of the liquid crystal display. Part of the non-equilibrium defects can also be removed during the process to improve the stability of the MIM.
Is mainly used for adult health care products and toys micro vibration motor is a Dc Motor, the motor shaft with an eccentric wheel, when the motor rotation, eccentric circle particle is not turn the heart of the motor, make motor is constantly out of balance state, caused by inertial effect.
Characteristics: small volume, strong vibration;
Features: small size, fast speed, stable performance, low price, can use battery drive,Can change the different materials of the pendulum head
Method of use: the best stable in horizontal plane, installed on the dc vibration motor output shaft parts, cannot use a hammer to knock, knock prone to press into the dc vibration motor drive, may cause damage to internal components, and cannot be used in the case of blocked.
Operating temperature range:
vibration motor should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a vibration motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
vibration motor should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
The longevity of vibration motor is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.
â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you Looking forward to your inquiry. Welcome to our factory.
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