SUCCESSFUL CHEMICAL DE-LAYERING

PROTOCOLS FOR IC DIE TO DATE

•

gNOMINAL STRUCTURE - Four / Six Metal (AI) die Stack
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Passivation - Si3N4 over SiO2
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gMetal 6 - ARC-Ti/W-Al(Cu)-Ti/W
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SiO2 dielectric
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gMetal 4 - ARC-Ti/W-Al(Cu)-Ti/W
• SiO2 dielectric
• Metal 3 - ARC-Ti/W-Al(Cu)-Ti/W etc.

 

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