Field inversion generated in the CMOS double-metal process due to PETEOS and SOG interactions

Autor: Lu-Min Liu, Shu-Lan Ying, Chung-Hsin Fang, Tien-Li Chen, Mou-Shiung Lin, Shun-Liang Hsu, Chun-Yen Chang
Rok vydání: 1993
Předmět:
Zdroj: IEEE Transactions on Electron Devices. 40:49-53
ISSN: 0018-9383
DOI: 10.1109/16.249423
Popis: Severe field inversion was observed in circuits fabricated by the CMOS double metal process using PETEOS/inorganic SOG/PEOX as the intermetal dielectrics and PEOX/PECVD nitride as the passivation layer. The authors performed detailed studies and concluded that the field inversion is caused by the interaction between PETEOS and non-carbon-based SOG, triggered by the H/sup +/ released from PECVD nitride during the sintering. No field inversion was observed when PEOX/inorganic SOG/PEOX was used as the intermetal dielectrics. The effect of field inversion on the circuit yield is also discussed. >
Databáze: OpenAIRE