1、After the etchant has etched through the organic resin to expose an underlying surface (12), the etchant is washed from the organic resin and the openings (32).

2、The specimen will not etch if the clamp material is more readily attacked by the etchant.

3、Study on the electrode process kinetics of recycle of spent acidic etchant for printed circuit board

4、It was relative to the etching depths, temperature and the etchant proportion and types.

5、The PI pattern quality is affected by the PI precuring process and the etchant concentration.

6、Introduce an alkaline copper etchant used for the manufacture of printed circuit boards and the way it works.

7、Experiments further show that the continuous regeneration of acidic copper etchant can be achieved and a high cop...

8、A new method of laser assisted wet etching is proposed, which depends on the etching current characteristic and uniformity of etching image to select the suitable etchant.

9、If you don't have a microwave, put the whole bottle of etchant in a sink full of hot water for half an hour first.

10、For example, an etchant can be applied to the inner surface 450 through a descender (e. g., descender 130 in FIG. 1a) in the flow-path module.

11、The etchant penetrates between the fine grains to etch the plate forming countless tiny cells that print in a soft texture.

12、Application of TMAH solutions which is used as etchant in boron etch-stop and anisotropic etching process in the manufacturing of single-crystal and polysilicon pressure sensors is mainly discussed.

13、in the textiles industry for delinting of cotton seeds and the reclamation of wool, gasoline refining, the manufacture of organic and inorganic chlorinated compounds, and in the manufacture of semiconductors as an etchant.