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PCB etching redox potential detection standard solution

A technology of potential detection and standard solution, which is applied in the field of calibration standard solution, can solve the problems of abnormal redox potential detection probe detection data and inability to correct in time, and achieve the effect of avoiding poor etching and material waste

Active Publication Date: 2019-03-05
DONGGUAN SHENGYI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the object of the present invention is to provide a kind of PCB etching oxidation-reduction potential detection standard solution, to solve the problem that the abnormal detection data of the current oxidation-reduction potential detection probe cannot be corrected in time

Method used

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Embodiment 1

[0019] The present embodiment provides a kind of PCB etching oxidation-reduction potential detection standard solution, and described standard solution comprises the following components by percentage:

[0020]

[0021]

[0022] The potassium chloride is used as an active ingredient in redox potential, and the potassium chloride is dissolved in deionized water, and glycerol and inorganic sodium salt are added, and the glycerol is used to prevent the standard solution from volatilizing, and the inorganic Sodium salt is used for dissolving and separating out of stable potassium chloride, makes the stability of standard solution better, and in the present embodiment, described inorganic sodium salt can be NaCl, NaCl. 2 SO 4 、NaNO 3 、Na 2 CO 3 , NaHCO 3 Wait.

Embodiment 2

[0024] The present embodiment provides a kind of standard solution of PCB etching oxidation-reduction potential detection, and described standard solution comprises the following components by percentage:

[0025]

Embodiment 3

[0027] The present embodiment provides a kind of standard solution of PCB etching oxidation-reduction potential detection, and described standard solution comprises the following components by percentage:

[0028]

[0029] In summary, the PCB etching oxidation-reduction potential detection standard solution of the present invention is used to detect the redox detection probe, so as to detect abnormal redox detection probes in time and correct them, thereby avoiding the abnormal detection data of the probes The resulting poor etching and material waste.

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Abstract

A standard solution for PCB etching redox potential detection comprises the following components by mass: 16%-26% of potassium chloride, 70%-82% of deionized water, 1.5%-3.5% of glycerol and 0.5%-1.5% of an inorganic sodium salt. The standard solution for PCB etching redox potential detection is used for detection of redox detection probes, and facilitates the timely detection and correction of abnormal redox detection probes so as to avoid poor etching and material waste caused by abnormal probe detection data.

Description

technical field [0001] The invention relates to the field of circuit boards, in particular to a calibration standard solution for acid etching oxidation-reduction potential detection probes of printed circuit boards. Background technique [0002] The etching process of the printed circuit board is to apply the etching solution to the developed copper-clad board, and use the oxidation-reduction reaction between the etching solution and copper to remove the unprotected non-conductor on the patterned printed circuit board made in the previous process. Part of the copper is etched away to form a circuit. [0003] At present, the oxidation-reduction potential of copper chloride series acid etching solution for printed circuit boards needs to be controlled between 400mV-600mV. Therefore, it is necessary to use the oxidation-reduction potential detection probe to detect at any time to ensure that the oxidation-reduction potential is between 400mV-600mV . However, the existing oxi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/416
CPCG01N27/4163G01N27/4168
Inventor 何平钟海辉张志远
Owner DONGGUAN SHENGYI ELECTRONICS