A method of manufacturing a joint between metal and a ceramic substrate for a high temperature sensor. First metal lines GL, GL, and GL and second metal lines BL and BL are disposed in the sequence GL, BL, GL, BL and GL. A fixture is affixed to an imaging side of the fluoroscope for providing patterns of an of array markers that are imaged in each fluoroscope image. Each of the majority of the bridging structures are electrically connected to every two adjacent second conductive units in two adjacent first conductive axes. The influence on the reproduction output, caused by the mirror image effect of the soft magnetic back layer is reduced in wide range recording densities, thereby improving the resolution by decreasing the difference between the reproduction outputs of the magnetic recording medium at the low recording density and at the high recording density.