網路上查到的.參考一下:. N9 `0 `0 H4 c, P8 Y
"Diffusion ROM is based on VT change (using VT implant mask) => Hihg VT transistors not conducting, low VT ones conducting $ }; n* ~+ Z- Y3 D5 ?) z' U eVIA ROM is using via to "connect" or "not connect", resulting 0 and 1 , e$ X: S/ I7 K# h* p( i, Z) aVIA ROM may have bigger cell size "
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發表於 2008-5-30 16:57:51
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