網路上查到的.參考一下: , ~3 P- ]7 g! U' x( f8 y3 R" B, @: T"Diffusion ROM is based on VT change (using VT implant mask) => Hihg VT transistors not conducting, low VT ones conducting , l1 Z) i5 ~6 t' F% }0 A& G/ K6 l
VIA ROM is using via to "connect" or "not connect", resulting 0 and 1 0 N. ?' D! c$ H7 m" p- tVIA ROM may have bigger cell size "
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發表於 2008-5-30 16:57:51
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