Labels:text | black and white | paper | font | screenshot | newspaper | printing | document OCR: 1111101991662 J. Lbb. I.D.L.F.P. Figure 5: The data of this NOR ROM becomes clearly visible when the covering metal and polysili- Figure 6: The implant-mask layout of a NAND ROM can be made visible by a dopant-selective con access lines plus the surrounding field oxide have been retnoved (HF wet etching). The image shows crystallographic etch (Dash etchand [2]). This im- 16 x 10 bits in an ST16ryz. Every bit is represented age shows 16 x 14 bits plus parts of the row selec- by either a present or missing diffusion layer connec- tor of a ROM found on an MC68HC05SC2r CPU. The threshold voltage of 0-bit p-channel transistors tion. (stained dark here) was brought below 0 V through ion implantation. of the chip will appear simultaneously, but in differ- ett colors. Automatic layout reconstructi ...
