中国电子学会电子制造与封装技术分会会刊

中国半导体行业协会封测分会会刊

无锡市集成电路学会会刊

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电子与封装 ›› 2021, Vol. 21 ›› Issue (9): 090403 . doi: 10.16257/j.cnki.1681-1070.2021.0914

• 微电子制造与可靠性 • 上一篇    下一篇

高浓度硅外延纵向电阻率分布研究

尤晓杰;王银海;葛华;韩旭   

  1. 南京国盛电子有限公司,南京 211100
  • 收稿日期:2021-03-29 发布日期:2021-05-07
  • 作者简介:尤晓杰(1990—),男,山东青岛人,西安电子科技大学先进材料与纳米科技学院硕士研究生,南京国盛电子有限公司工程师,主要研究方向是硅外延工艺。

Study on Vertical ResistivityDistribution of Silicon Epitaxy with High Doping Concentration

YOU Xiaojie, WANG Yinhai, GE Hua, HAN Xu   

  1. Nanjing Guosheng Electronics Co., Ltd., Nanjing 211100, China
  • Received:2021-03-29 Published:2021-05-07

摘要: 研究了桶式N型外延中发现的波浪形貌纵向电阻率分布现象,分析和验证了可能影响因素(温度、生长速率、转速、挂件、掺杂浓度),得到如下结论,波浪形貌的纵向电阻率分布是在高掺杂浓度时因桶式基座面气流干扰产生的现象,且该现象通过基座面尺寸的调整可以消除。

关键词: 桶式外延炉, 基座, 波浪形貌, 纵向电阻率分布, 掺杂浓度

Abstract: By studying the phenomenon of wavy resistivity distribution which was found in n-type epitaxy produced with barrel furnace, and analysing the related factors (temperature, growth rate, rotating speed, pendant, doping concentration), such conclusion is found, wavy resistivity distribution is an phenomenon caused by disturbance of barrel substrate at the condition of high doping concentration. Also, the phenomenon can be eliminated by adjusting the size of the substrate.

Key words: barrelepitaxialfurnace, substrate, waveshape, verticalresistivitydistribution, dopingconcentration

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