Device for maintaining developing solution stability

A developing solution and stable technology, applied in the field of devices for maintaining the stability of the developing solution, can solve the problems of time-consuming and laborious, difficult manual maintenance of the developing solution, etc., and achieve the effect of improving production efficiency and liberating labor force

Inactive Publication Date: 2013-07-17
KUN SHAN POWER STENCIL
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention solves the problems of difficult, time-consuming and labor-intensive maintenance of the

Method used

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  • Device for maintaining developing solution stability

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Embodiment

[0018] figure 1 Shown is a device for maintaining the stability of the developing solution provided by the present invention, which includes: a developing cylinder 8, a developing solution adding cylinder 1, a metering pump 2, a pH meter 3, a programmable logic controller (PLC) 4, a pipeline 5, Signal line 6, valves 7 and 7'.

[0019] The developing solution adding tank 1 is used to hold the new developing solution, and its water outlet is connected with a normally open valve 7; the metering pump 2 is used to add the developing solution in the developing solution adding tank to the developing tank, and the metering pump is connected to the water outlet. There is a normally open valve 7' at the outlet; the developing solution in the system is transported through the pipeline 5.

[0020] PH meter 3 is an online PH meter for continuous measurement, and its function is to monitor the pH value of the developer in the developing cylinder in real time online; PLC4 is used to receive...

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Abstract

The invention relates to a device used for maintaining the stability of a developing solution. The device comprises a developing tank 8, a developing solution addition tank 1, a metering pump 2, a pH meter 3, a programmable logic controller (PLC) 4, a pipeline 5, a signal lien 6, and valves 7 and 7'. The valve 7 is connected at a water outlet of the developing solution addition tank 1. The valve 7' is arranged at a water outlet of the metering pump 2. The pipeline 5 is used for delivering the developing solution. The pH meter 3 is a continuous-measuring on-line pH meter. The PLC 4 is used for receiving pH meter real-time monitoring signals and controlling the starting and working times of the metering pump. The signal line 6 is used for collecting and transmitting the signals of the PLC 4. With the device used for maintaining the stability of the developing solution, the developing solution can be subjected to intelligent real-time full-automatic monitoring and adjustment, and can be added automatically. Therefore, labor intensity is reduced, and production efficiency is improved.

Description

technical field [0001] The invention specifically relates to a device for maintaining the stability of a developing solution, which is used for manufacturing SMT mask plates. Background technique [0002] With the development of science and technology and the continuous improvement of living standards, people are pursuing miniaturization and precision of various electronic and electrical products. However, the traditional method of perforating and inserting components can no longer reduce the size of the products. This promotes the development of Surface Mounting Technology (SMT). SMT is a new generation of electronic assembly technology, which compresses traditional electronic components into devices with only a few tenths of the volume, thereby realizing electronic products. High density assembly, high reliability, miniaturization, low cost and automation of production. [0003] SMT solves the problem of collective circuit cost of high pin count, and uses alternative mate...

Claims

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Application Information

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IPC IPC(8): G03F7/30G03F7/32
Inventor 魏志凌高小平樊春雷
Owner KUN SHAN POWER STENCIL
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