After much elbow grease and hard work, here is the final PCB layout with all copper and silkscreen layers. I placed all the components and routed all the traces by hand. It was rather tricky and tedious at first, but I soon worked out a method to my madness. As you will probably notice in the top and bottom copper later close ups below, I tried to route all my horizontal traces on top and all my vertical traces on the bottom layer. The work was complicated by the amount of IC's required to implement the auto-ranging functions. This resulted in a huge amount of vias, but it simply couldn't be avoided.
Here's the final 'Design Status Report' generated by PCB Artist.
Design Status Report -------------------- Report File : H:\Documents\Purdue Homework\(7) Fall 09\ECET 297\297 DVM Project (PCB - Design Status Report).txt Report Written : Wednesday, February 03, 2010 Design Path : H:\Documents\Purdue Homework\(7) Fall 09\ECET 297\297 DVM Project.pcb Design Title : Created : 10/9/2009 23:02:58 Last Saved : 10/23/2009 20:49:28 Editing Time : 1362 min Units : mil (precision 0) Board Area ---------- 22600000 mil squared Layers ------ Name Type Side Net Top Silkscreen Silk Screen Top Top Copper Electrical Top Top Solder Mask Solder Mask Top Documentation1 Documentation Top Top Paste Mask Paste Mask Top Bottom Silkscreen Silk Screen Bottom Bottom Copper Electrical Bottom Bottom Solder Mask Solder Mask Bottom Documentation2 Documentation Bottom Bottom Paste Mask Paste Mask Bottom Component List -------------- Comp Type Package Components Pins R SM 27 54 C SM 9 18 ICL7106CPL DIP40 1 40 4023 DIL 1 14 4071 DIL 1 14 4011 DIL 1 14 4016 DIL 2 28 D DSC 3 6 2N3702 DSC 1 3 4029 DIL 1 16 4028 DIL 1 16 H4101B DIL 1 20 2WPHDR HDR2 1 2 297TestHeader DIL 1 14 NO PushButton USER 1 2 9V Battery USER 1 2 3WPHDR HDR3 2 6 H4101A DIL 1 20 4030 SOL 1 14 LED DSC 4 8 1WPHDR HDR1 11 11 4077 DIL 1 14 MMBF170 SOT23 2 6 Total: 75 342 Net List -------- Net Class Nets Track Length Vias Connections Con Length Signal 89 228339 180 0 0 Power 1 0 0 0 0 Total: 90 228339 180 0 0 Drill List ---------- Drill Diameter Holes 24 180 30 8 32 179 35 23 35 40 Total number of drill holes 430. Total number of free pads 0. End Of Report. And finally, the good stuff you're actually looking for: pretty pictures. And for those of you dedicated enough to scroll down this far.... |