Archived posting to the Leica Users Group, 2008/05/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Having made this suggestion tongue in cheek, let me address the problems.... First, there were and probably are circular chips made. Not many, but some. When you make a wafer of chips, you then CUT the wafer into many parts, called chips ( ! ). This is done with a saw. First in horizontal rows then in vertical rows. Pretty easy. Straight cuts. Ever try to cut a round thing out?? Ain;t easy. Second, if you ( could ) make round chips, you would waste the area between the circles.... draw it and you will see what I mean. Waste is not in the IC designers' dictionary. So mostly all chips are rectangular. Now let's consider circuit elements on the chip. Some truly are not rectangular. But again there must be a reason else you are wasting chip area. It has been 40 years since I actually made an active device in a lab. Too long ago to remember all the reasons you do not want a circular circuit element. Frank Filippone red735i@earthlink.net Why not a circular sensor? Aren't the chips manufactured on circles? Tom