Metal working – Method of mechanical manufacture – Electrical device making
Patent
1990-12-06
1991-10-08
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
29621, 346 76PH, H05B 300
Patent
active
050541900
ABSTRACT:
A substantially rectangular insulating substrate is prepared. Next, pairs of lead electrodes are formed on the substrate such that they extend in parallel with regular intervals and slantwise with reference to the longitudinal direction of the substrate. The electrodes are formed by use of a lithography technology, including deposition and etching. Then, a resistor material is pasted on the substrate and the electrodes by screen printing, to thereby form a strip-shaped resistor extending in the longitudinal direction. Finally, a protective layer is formed on the resultant structure, so as to prevent the resistor and the electrodes from being oxidized or worn away, thereby completing the fabrication of a thermal head. In this thermal head, each of those portions of the strip-shaped resistor which are defined by a pair of adjacent lead electrodes serves as a parallelogrammatic heating resistor used for recording one pixel.
REFERENCES:
patent: 2910664 (1959-10-01), Lanning
patent: 4259564 (1981-03-01), Ohkubo et al.
patent: 4446355 (1984-05-01), Sato et al.
patent: 4514736 (1985-04-01), Moriguchi et al.
patent: 4698643 (1987-10-01), Nishiguchi et al.
patent: 4806106 (1989-02-01), Mebane et al.
Inoue Nobuhiro
Nakano Akira
Oshima Nobuhiro
Echols P. W.
Kabushiki Kaisha Toshiba
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