| 摘要 |
<p>A thermal jet ink printing system is provided with an improved printhead. The printhead is formed by monolithic integration of MOS transistors switches (78, 80, 82) onto the same silicon substrate (48) containing the resistive elements. In a preferred embodiment, the transistor switches and resistive elements are formed from a single layer of polysilicon (78, 79) with the resistive element formed on a thermally grown field oxide layer (72) having a thickness ranging from about one to four mu m. The integrated circuit chips are formed by MOS technology, are thermally stable and can be operated at higher voltages than known chips.</p> |
