| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To attain the implementation of an efficient and exact trimming in a short period of time without causing any defect by performing the test while optimizing erasing and writing speeds. <P>SOLUTION: A pulse width is calculated just before erasing and writing are carried out, and the erasing and the writing operation are performed by the optimized pulse width, then the efficient I<SB>ref</SB>trimming test is performed in a short period of time without causing any defect. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
