Manufacturing method of membrane circuit board

A manufacturing method of a membrane circuit board, the manufacturing method comprising steps of:

• providing a screen plate, a first substrate body and a second substrate body;
• forming a conductive paste on the screen plate;
• forming a first circuit pattern on the screen plate;
• simultaneously printing the conductive paste and the first circuit pattern on the first substrate body by a screen printing process, wherein the conductive paste is connected with the first circuit pattern, and an equivalent resistance of the conductive paste and the first circuit pattern is formed, wherein the first substrate body, the first circuit pattern and the conductive paste are collaboratively formed as a first membrane substrate;
• forming a second circuit pattern formed on the screen plate;
• printing the second circuit pattern on the second substrate body by the screen printing process, wherein the second substrate body and the second circuit pattern are collaboratively formed as a second membrane substrate;
• and
• aligning the second membrane substrate with the first membrane substrate.