炉管(Furnace)设备工艺经验8年笔记
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Furnace Introduction
ØFurnace concept(炉管基本介绍)
ØFurnace Type (炉管的分类)
ØWafer transfer system (炉管传送系统介绍)
ØProcess application(工艺应用); AP and LP Recipe body ;Furnace Gas Flow; Profile log(温度曲线;压力曲线)
ØFurnace monitor operation flow (Wafer level 的监控)
ØFinal summary and Q&A
8年行业经验汇集于此,拿走不谢。
l分类
Ø按照厂商分:TEL / KE / ASM / CT / NAURA / SPTS(以色列)
Ø按照Process Pressure: AP / LP
Ø按照Process Temperature: High Temperature / Middle Temperature / Low Temperature
Ø按照Process function:氧化(Oxidation) ; 扩散(Diffusion)与驱入(Drive in); 退火(Anneal); 回流(Reflow); 合金(Alloy); 低压化学气相淀积(LPCVD); Si3N4; Poly-Si; SiO2(LTO/MTO/HTO); PSG/BPSG
lWhy furnace?
ØHigh throughput, 150 wafers/run
ØWell known, “simple” and “old” technology
ØAP furnace and LPCVD furnace
Ø“Cheaper”
lDisadvantage:
ØLager thermal budget, dopant lateral diffuse;
ØCan’t easy control device accurately.
Ø错误发生时,产品不易补救,报废量高
Ø石英器材消耗量大
1个Batch,process 150pcs production wafer Side dummy/fill dummy/Monitor Stocker 里面可以放2个batch
可以做到每5pcs 一抓取;从上到下的wafer分布顺序