In this response, we show that the paper by Kim et al. by our group has a different research purpose and uses different modeling processes, which was not described in the previous work by Ortiz-Conde et al. The comments issued by Ortiz-Conde et al., who claim that our paper corresponds to a particular case of their previous work, are in our opinion overgeneralized. Differences compared to Ortiz-Conde's previous work are discussed in detail. We also explain how the problem on threshold voltage pointed out by Ortiz-Conde et al. can be solved through a semiempirical method from measured data.