| 摘要 |
PURPOSE: A back side plate of a plasma display panel and a method for manufacturing the same are provided to prevent a form of a diaphragm from being transformed in a resist thin film process or in a plasticity process and, continuously, form a diaphragm of a PDP back side plate to embody a mass production. CONSTITUTION: A method for manufacturing a back side plate of a plasma display panel is consisted of seven procedures. A first procedure is to mount a material to be etched and convey it to a diaphragm processing part. A second procedure is to shake and, simultaneously, spray an etching liquid to the material to be etched. A third procedure is to carry out the material from the diaphragm processing part. A fourth procedure is to remove an etching liquid remained on the material. A fifth procedure is to measure the size of a diaphragm formed on the material and control a shake spray operation of the etching liquid and a conveyance speed of the material. A sixth procedure is to mix an etching liquid used and a new etching liquid and supply to the diaphragm processing part. A seventh procedure is to detect a concentration, a temperature, and a quantity of the etching liquid to control the supply for the diaphragm processing part. |
