Ask the Experts: Semiconductors

How can I assure the compatibility of my porous low-k materials?

What delivery challenges do I face when using the high-k precursors, such as TEMAZ, for depositing hafnium and zirconium-based high-k materials?

I am experiencing high n type background doping levels in my MOCVD process when I grow GaAs and AIGaAs devices. I think the problem is in the arsine I use. I'm buying the best grade available. What can I do?

Our LED manufacturing facility is experiencing a variety of problems with our NH3 flow rates and purity while seeing increasing costs. What are your recommendations?

How do I meet various technology node requirements without significant changes to my low-k process?

I'm experiencing oxygen-related defects in my low-temperature SiGe and silicon growth processes. What could be causing this?

I'm experiencing pattern collapse in my lithography process. What can help me overcome this problem?

I have noticed that the performance of my current fluoride stripper diminishes over time, as evidenced by poor cleaning efficacy and substrate attack. I therefore must change the stripper bath more often than desired. What can I do to simultaneously improve the consistency of the process and minimize cost of ownership?

How do I plan for the possibility of a leaking cylinder in my facility?

My LPCVD silicon nitride process has hit its limit at 680ºC. How can I reduce my thermal budget without sacrificing film quality?

What can I do to ensure robust delivery and use of tetramethylcyclotetrasiloxane?