Conductive substrate
A technology for conductive substrates and transparent substrates, applied to conductive layers on insulating carriers, electrical digital data processing, electrolytic inorganic material coatings, etc., can solve uneven etching, inability to etch metal layers and blackened layers, and size deviation And other issues
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experiment example 1
[0183] made with Figure 1A Conductive substrate of the structure shown.
[0184] (Metal layer formation process)
[0185] A copper layer as a metal layer was formed on one surface of a long transparent substrate made of polyethylene terephthalate resin (PET) with a length of 300 m, a width of 250 mm, and a thickness of 100 μm. In addition, the total light transmittance was evaluated by the method specified in JIS K 7361-1 with respect to a transparent substrate made of polyethylene terephthalate resin as a transparent substrate, and the result was 97%.
[0186] In the metal layer forming step, a metal thin film layer forming step and a metal plating layer forming step are performed.
[0187] First, the metal thin film layer forming step will be described.
[0188] In the metal thin film layer forming step, the above-mentioned transparent base material was used as a base material, and a copper thin film layer was formed as a metal thin film layer on one surface of the transp...
experiment example 2- experiment example 10
[0204] In each experimental example, the change points of the current density and the coating time of the nickel ion concentration in the blackening plating solution when forming the blackening layer, the copper ion concentration, the blackening layer and the plating time are as shown in table 1, and other according to Under the same conditions as in Experimental Example 1, a conductive substrate was fabricated and evaluated. The results are shown in Table 1.
[0205] 【Table 1】
[0206]
[0207] From the results shown in Table 1, it was confirmed that in Experimental Example 1 to Experimental Example 10, the blackened layer contained simple nickel, nickel oxide, nickel hydroxide, and copper.
[0208] In addition, the evaluation results of the etching characteristics were "0" or "Δ", and it was confirmed that these conductive substrates have a metal layer and a blackened layer that can be etched simultaneously.
[0209] In particular, in Experimental Examples 1-8, in which...
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Abstract
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