High precision high reliability TI-CU-AU composite electrode NTC chip.LDR sensor manufacture

　　The Ti-CU-AU composite electrode NTC chip, its titanium layer (TI), as the transition layer (thickness is 0.01 ~ 1 micrometer), mainly plays a transition role. To a certain blocking effect; the copper layer (CU) is used as a blocking layer (thickness of 0.01 ~ 2 microns), which is used to block the damage of the external transition layer and has a welding effect; Micro), also a protective layer, has high stability, which can prevent oxidation, corrosion resistance, prevent damage, and high temperature resistance.

　　The titanium layer, copper layer, and gold layer use the method of vacuum sputtering to make the composite electrode on the surface of NTC thermist ceramic substrate on the surface. Compared to the screen printing method, the vacuum sputtering method is used to prepare the metal layers, which has the following beneficial effects:

　　(1) The sputtering process is carried out in the vacuum sputtering coating equipment, which will not pollute the environment, high cleanliness, and ensure that the cleaning surface is not polluted by secondary;

　　(2) Save the complicated preparation of silver electrode seal, and can be put into use after sputtering in vacuum sputtering equipment;

　　(3) The thickness of the metal layer obtained by sputtering can reach less than 1 % of the thickness of the silver -print electrode layer, saving materials, and the sputtering process makes the composite electrode tightly fit the NTC thermist ceramic substrate, which is basically basically during the cutting process. Do not peel or produce burrs;

　　(4) The sputtering process is easy to control. The metal layer coating area obtained by vacuum sputtering is large and covered with uniform coverage. It is firmly combined with NTC thermist ceramic substrates. The surface is very dense, which can effectively prevent external erosion. High and reliable, can eliminate the performance changes caused by high temperature sintering after silver layer after printing;

　　(5) There is no process of drying and sintering electrode layer to avoid discharging harmful gases and polluting the air.

Read recommendations:

The heating resistance manufacturer of the lacquer cable.Patch type Thermistor

Intelligent lighting control device and NTC temperature sensor.Infrared Body Sensing Module

HR008

PIR Lens 2136-1

PIR Lens 8003-3