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US6069398A Thin film resistor and fabrication method thereof 失效
薄膜电阻及其制造方法

Thin film resistor and fabrication method thereof
摘要:
A resistor is formed between devices in an integrated circuit by forming a patterned trench in an intralayer dielectric (ILD) deposited over the devices, filling the trench with polysilicon and planarizing the polysilicon. The resistance of the resistor is defined by determining and selecting the size and form of the trench including the width, length, depth and orientation of the trench. In some embodiments, the resistance of the resistor is also controlled by adding selected amounts and species of dopants to the polysilicon. In some embodiments, the resistance is controlled by directly saliciding the polysilicon in the trench.
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