Method for fabricating tantalum capacitor and products
A tantalum capacitor and voltage technology, applied in the field of tantalum capacitor preparation, can solve the problems of high cost, high energy consumption, unstable product properties, etc., and achieve the effects of low cost, improved reliability and life, and reduced leakage current
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Embodiment 1
[0027] according to image 3 The steps shown to prepare a tantalum capacitor where:
[0028] The conditions of the heat treatment step are: temperature 250°C, heating time 15 minutes. The treatment method is to put the product that has undergone the first chemical transformation in a high-temperature drying oven that has reached the set temperature, and quickly close the door of the drying oven to avoid temperature drop. Too much, then timing, after the time is up, take out the product and cool it to room temperature naturally;
[0029] The conditions for the second formation are: voltage 50V, temperature 20°C, and time 20 minutes; the treatment method is to immerse the heat-treated product in the formation solution and set the voltage.
[0030] The conditions and treatment methods of other processes are the same as those of the prior art.
[0031] After the leakage current test, the leakage current of the product prepared by the above method is obviously lower than that of ...
Embodiment 2
[0032] Embodiment 2 chemical formation process
[0033] Tantalum capacitors were prepared according to the method described in Example 1, except that the heat treatment conditions were: temperature 350°C, time 20 minutes, and the conditions of the second chemical conversion treatment were: voltage 60V, temperature 60°C, time 45 minutes.
[0034] After the leakage current test, the leakage current of the product prepared by the above method is obviously lower than that of the product prepared by the conventional process.
Embodiment 3
[0035] Embodiment 3 chemical conversion process
[0036] Tantalum capacitors were prepared according to the method described in Example 1, except that the heat treatment conditions were: temperature 450°C, time 30 minutes, and the conditions of the second chemical conversion treatment were: voltage 70V, temperature 90°C, time 70 minutes.
[0037] After the leakage current test, the leakage current of the product prepared by the above method is obviously lower than that of the product prepared by the conventional process.
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