Method of making thermal printhead.

摘要

A method of making thermal printheads is provided which comprises the steps of: (a) preparing a master substrate (10) having plural rows of unit head regions; (b) forming a head glaze member (4) in each unit head region in each row so that an edge of the head glaze member (4) of the unit head region (9) aligned with that of the head glaze member of any other unit region in the same row; (c) half-cutting the master substrate (10) along the edge of the head glaze member (4) of the unit head region (9) with a half-cutting dicing blade which has an inclined edge face for partially cutting the head glaze member (4) to provide a glaze corner (11); and (d) forming an array of heating dots (8) along the glaze corner (11); wherein at least one blade positioning mark is formed on the master substrate (10) before the half-cutting step (c); and the half-cutting dicing blade is positionally set in the half-cutting step (c) by referring to the blade positioning mark.