3 ms·You could take your silicon chip and have it re-etched only with model diffs for an upgraded version.by deadbabe 2mo agoYou could take your silicon chip and have it re-etched only with model diffs for an upgraded version.yumraj 2mo agoHow does that work, as in re-etching of silicon? Any pointers to read?deadbabe 2mo agoSomeone will figure it out.