Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8169843 | Wafer test trigger signal generating circuit of a semiconductor memory apparatus, and a wafer test circuit using the same | — | 2012-05-01 |
| 8009497 | Auto-refresh control circuit and a semiconductor memory device using the same | — | 2011-08-30 |
| 7852134 | Circuit for controlling pulse width of auto-refresh signal and circuit for generating internal row address for auto refresh | — | 2010-12-14 |
| 7826300 | Semiconductor memory apparatus | Jeong-Woo Lee, Won Jun Choi | 2010-11-02 |
| 7715259 | Word line driving circuit and method of testing a word line using the word line driving circuit | Jeong-Woo Lee, Won Jun Choi | 2010-05-11 |
| 7679981 | Semiconductor device | Ki-Chang Kwean | 2010-03-16 |
| 7558144 | Circuit for controlling pulse width of auto-refresh signal and circuit for generating internal row address for auto refresh | — | 2009-07-07 |
| 7529146 | Semiconductor device | Ki-Chang Kwean | 2009-05-05 |