公开(公告)号：US20160107452A1

公开(公告)日：2016-04-21

申请号：US14980765

申请日：2015-12-28

Applicant: ROHM CO., LTD.

Inventor： Hideaki HOKI ,  Tomohiko HORIKAWA ,  Shinobu OBATA ,  Tomoharu HORIO ,  Minoru SAKAMOTO

IPC: B41J2/335

CPC classification number: B41J2/3351 ,  B41J2/335 ,  B41J2/33515 ,  B41J2/3354 ,  B41J2/33545 ,  B41J2/3357 ,  B41J2/33585 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/49175 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: The object is to provide a thermal print head capable of improving printing quality on a medium. The Solution is to provide a base member 11 including a recess 113a, a heat storage region 2 formed in the recess 113a, a resistor layer 4 formed on the base member 11, and an electrode layer 3 formed on the base member 11 and electrically connected to the resistor layer 4. The resistor layer 4 includes a heating portion 41 spanned between two portions of the electrode layer 3 spaced from each other as viewed in a thickness direction Z of the base member 11. The heating portion 41 is located so as to overlap the recess 113a as viewed in the thickness direction Z. The base member 11 is made of a material having a thermal conductivity of 100 to 300 W/(m·K).

Abstract translation: 本发明的目的是提供一种能够提高介质上的打印质量的热敏打印头。 该解决方案是提供一种基底构件11，其包括凹部113a，形成在凹部113a中的蓄热区域2，形成在基底构件11上的电阻层4和形成在基底构件11上的电极层3， 电阻层4包括在基底部件11的厚度方向Z上观察时彼此隔开的电极层3的两部分之间的加热部分41。加热部分41位于 在厚度方向Z上与凹部113a重叠。基材11由热传导率为100〜300W /（m·K）的材料构成。