| 摘要 |
PURPOSE:To ensure a moderate length of bonding wire while allowing uniformization of printing record density by varying the pattern width of an individual conductor by several stages in a conductor resistance correction area. CONSTITUTION:In an ''n'' area of individual conductors L1-Lm connected to resistors R1-Rm, when the individual conductors are formed with the pattern with less than that of those contacting heating resistors, the pattern width is varied by several staircases or monotonously in the single conductor so as to uniformize the conductor resistors of the individual conductors L1-Lm. That is, in a conductor resistance correction area ''n'', the smallest pattern width at the lower part is set at 0.04mm., a value which will not lower the yield in practice while the area ''W'' is provided with an intermediate pattern width at the upper part. For example, the pattern width of the area is set at 0.08mm. and in the discrete conductors contacting the resistance, the pattern width at 0.115mm.. |
