such that the magnitude of the separated space formed between the o ring and the roll type substrate is minimized accordingly the air flowing into the high vacuum chamber may be minimized fig1 is a perspective view of an exemplary embodiment of a manufacturing method of a roll type substrate used in a vacuum roll to roll device according to the invention fig1 is an enlarged cross sectional view of portion p of fig1 referring to fig1 an exemplary embodiment of a manufacturing method of a roll type substrate according to the invention includes unwinding a flexible substrate 100 from an unwinding roller cutting a lateral side of the substrate 100 in an opposite direction to a progressing direction an arrow direction of fig1 of the substrate 100 of by using a cutter k including a knife having an oblique line shape and rewinding the roll type substrate 100 of which the lateral side is cut through the rewinding roller referring to fig1 the cutter k according to the exemplary embodiment is similar to a triangle knife used for engraving and the knife portion 900 of the cutter k forms the angle u03b8 s with respect to the upper surface of the substrate 100 accordingly the lateral side of the roll type substrate 100 cut by the cutter k is tapered with the angle u03b8 s the roll type substrate 100 formed as described above forms the shape like the exemplary embodiment described in fig3 fig1 is a perspective view of another exemplary embodiment of a manufacturing method of a roll type substrate used in a vacuum roll to roll device according to the invention.