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    • 5. 发明授权
    • Thermal ink jet printhead with crosslinked polymer layer
    • 具有交联聚合物层的热喷墨打印头
    • US06409316B1
    • 2002-06-25
    • US09536803
    • 2000-03-28
    • Shan C. ClarkThomas W. Smith
    • Shan C. ClarkThomas W. Smith
    • B41J205
    • B41J2/1635B41J2/1604B41J2/1623B41J2/1626B41J2/1631B41J2/1642B41J2/1645B41J2202/03
    • A thermal ink jet printhead having an upper substrate and a lower substrate in which one surface thereof has an array of heating elements and addressing electrodes formed thereon. The lower substrate has an insulative layer deposited on the surface thereof and over the heating elements and addressing electrodes and patterned to form recesses therethrough to expose the heating elements and terminal ends of the addressing electrodes. The upper and lower substrates are bonded together to form a thermal ink jet printhead having droplet emitting nozzles defined by the upper substrate, the insulative layer on the lower substrate, and the heating elements in the lower substrate. At least one of the upper substrate and the insulative layer comprises a crosslinked polymer formed by crosslinking a precursor polymer which is a phenolic novolac resin having glycidyl ether functional groups on the monomer repeat units thereof.
    • 一种具有上基板和下基板的热喷墨打印头,其中一个表面具有形成在其上的加热元件阵列和寻址电极。 下基板具有沉积在其表面上并且在加热元件和寻址电极之上并且被图案化以形成通过其以暴露寻址电极的加热元件和末端的凹部的绝缘层。 上下基板结合在一起以形成具有由上基板,下基板上的绝缘层和下基板中的加热元件限定的液滴发射喷嘴的热喷墨打印头。 上基板和绝缘层中的至少一个包括通过在其单体重复单元上交联具有缩水甘油醚官能团的酚醛清漆树脂的前体聚合物形成的交联聚合物。