发明授权
US4835550A Thick film type thermal head 失效
厚膜式热敏头

Thick film type thermal head
摘要:
A thick film type thermal printing head is characterized by having as a protective film a surface layer of at least one amorphous glass layer and an underlying layer of at least one crystallized glass layer or inorganic material-filled amorphous glass layer to increase reliability and life of the printing head.
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