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Method for manufacturing end electrode of sheet-type capacitor

A manufacturing method and capacitor technology, applied in the direction of fixed capacitor leads, fixed capacitor parts, ion implantation plating, etc., can solve the problems of difficult sputtering and sealing of chip capacitors, and achieve shortened production cycle and uniformity Good, the effect of saving production costs

Inactive Publication Date: 2011-04-27
GUANGDONG FENGHUA ADVANCED TECH HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is very difficult to sputter termination of chip capacitors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Use a specially designed capacitor alignment machine to load the chamfered and cleaned capacitors on the special jig for skilled personnel to expose the length of the sealed end, and then send them into the oven, bake them at 85°C for about 20 minutes, and then install them. to the vacuum coating chamber. The vacuum coating chamber is a magnetically controlled field and is located in a purification workshop. The degree of purification of the purification workshop is more than 10,000 grades, and the frequency of the magnetic control field is 1200 ± 200 Hz. Turn on the rough vacuum pump, and when the vacuum reaches 10Pa, turn on the fine pump cryopump until the vacuum reaches 5×10 -3 After Pa, the magnetron sputtering coating system was turned on for electrode-capped sputtering. The alloy target is a nickel-chromium alloy, Ni:Cr=80:20, the sputtering temperature is 50°C, and the sputtering time is set for 15 minutes. The electrode film thickness of the obtained product ...

Embodiment 2

[0013] Use a specially designed capacitor alignment machine to load the chamfered and cleaned capacitors on the special jig for skilled personnel to expose the length of the sealed end, and then send them into the oven. After baking at 85°C for about 25 minutes, install them. to the vacuum coating chamber. The vacuum coating chamber is a magnetically controlled field and is located in a purification workshop. The degree of purification of the purification workshop is more than 10,000 grades, and the frequency of the magnetic control field is 1200 ± 200 Hz. Turn on the rough vacuum pump, and when the vacuum reaches 10Pa, turn on the fine pump cryopump until the vacuum reaches 5×10 -3 After Pa, the magnetron sputtering coating system was turned on for electrode-capped sputtering. The alloy target is a nickel-chromium alloy, Ni:Cr=75:25, the sputtering temperature is 70°C, and the sputtering time is set to 18 minutes. The resulting product has uniform electrode film thickness, ...

Embodiment 3

[0015] Use a specially designed capacitor arrangement machine to load the chamfered and cleaned capacitors on the special jig for skilled personnel to expose the length of the sealed end, and then send them into the oven, bake them at 85°C for about 28 minutes, and then install them. to the vacuum coating chamber. The vacuum coating chamber is a magnetically controlled field and is located in a purification workshop. The degree of purification of the purification workshop is more than 10,000 grades, and the frequency of the magnetic control field is 1200 ± 200 Hz. Turn on the rough vacuum pump, and when the vacuum reaches 10Pa, turn on the fine pump cryopump until the vacuum reaches 3×10 -3 After Pa, the magnetron sputtering coating system was turned on for electrode-capped sputtering. The alloy target is a nickel-chromium alloy, Ni:Cr=82:18, the sputtering temperature is 90°C, and the sputtering time is set for 12 minutes. The resulting product has uniform electrode film th...

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Abstract

The present invention discloses a producing method of terminal electrode of blade capacitor, comprises steps like cleaning of capacitor terminal, drying and sealing, wherein the sealing step plating electrode film by sputtering. The invention simplifies MLCC producing process, shortens producing cycle, improves production efficiency, saves production cost and meets environment protection requirement.

Description

technical field [0001] The invention relates to an improvement of a manufacturing method of a chip capacitor, in particular to a manufacturing method of capacitor terminal electrodes. Background technique [0002] At present, the end-capping technology of multilayer ceramic dielectric capacitors (MLCC) at home and abroad is completed by dipping, drying, and sintering processes. The electronic pastes used are generally Ag / Pd or Cu materials, and the technology is relatively mature. Palladium is a rare and precious metal, and copper is an important strategic material, and it must be sintered in a protective atmosphere, so the energy consumption is high and the cost is high; at the same time, the production process generally takes 3-4 hours from dipping to sintering, and the cycle is long. Low efficiency; the volatilization of solvents during the drying and sintering process causes environmental pollution and has a certain impact on the health of operators, which is not compati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/228C23C14/14C23C14/35
Inventor 陈鉴波赖永雄李旭杰付振晓唐浩
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG