| Antifuse circuit KY Lee US Patent 6,741,117, 2004 | 21 | 2004 |
| Pipe latch circuit for increasing data output speed, a semiconductor memory device with the pipe latch circuit and data output operation method of the same KY Lee US Patent 7,420,865, 2008 | 9 | 2008 |
| Internal clock driver circuit KY Lee US Patent 7,652,514, 2010 | 8 | 2010 |
| Multi-level bonding option circuit KY Lee US Patent 6,411,127, 2002 | 8 | 2002 |
| Synchronous semiconductor memory device and method for driving the same KY Lee US Patent 7,715,252, 2010 | 7 | 2010 |
| Error detecting circuit and semiconductor apparatus including the same KY Lee, MP Park US Patent 8,966,326, 2015 | 6 | 2015 |
| Data output circuit of semiconductor memory device KH Kim, KY Lee US Patent 8,305,819, 2012 | 6 | 2012 |
| Data input circuit for a semiconductor memory capable of adapting to a phase skew between a data strobe signal and an external clock signal KY Lee US Patent 7,719,904, 2010 | 6 | 2010 |
| Data strobe circuit using clock signal KY Lee US Patent 7,053,686, 2006 | 6 | 2006 |
| Power supply circuit for sense amplifier of semiconductor memory device KY Lee US Patent 7,701,798, 2010 | 5 | 2010 |
| Semiconductor device capable of adjusting operation timing using antifuse KY Lee US Patent 7,092,306, 2006 | 5 | 2006 |
| Semiconductor device, semiconductor system including the same and test method thereof KH Kim, KY Lee US Patent 9,633,746, 2017 | 4 | 2017 |
| Semiconductor device KY Lee US Patent App. 12/839,689, 2011 | 4 | 2011 |
| Data writing apparatus and method for semiconductor integrated circuit KY Lee US Patent 7,995,406, 2011 | 4 | 2011 |
| Latch circuit and flip-flop circuit including the same JB Koo, KY Lee, DH Choi US Patent 8,810,295, 2014 | 3 | 2014 |
| Synchronous semiconductor memory device KY Lee US Patent 8,259,519, 2012 | 3 | 2012 |
| Ringing masking device having buffer control unit KY Lee US Patent 7,791,965, 2010 | 3 | 2010 |
| Apparatus and methods for a data input circuit for a semiconductor memory apparatus KY Lee US Patent App. 12/169,555, 2009 | 3 | 2009 |
| Semiconductor memory device for preventing skew and timing error of output data KY Lee US Patent 7,020,029, 2006 | 3 | 2006 |
| Memory device and compressive test method for the same KY Lee US Patent 8,947,959, 2015 | 2 | 2015 |
KwangHyun KimNAND design team, SK Hynix, Inc.在 sk.com 的电子邮件经过验证
