Added a placeholder padframe layout, and added an almost-complete
first draft of a datasheet for the chip.
diff --git a/mag/bump_pad.mag b/mag/bump_pad.mag
new file mode 100644
index 0000000..ac9f3b4
--- /dev/null
+++ b/mag/bump_pad.mag
@@ -0,0 +1,32 @@
+magic
+tech sky130A
+timestamp 1602626256
+<< metalrdl >>
+tri -3800 11800 0 12400 se
+tri 0 11800 3800 12400 sw
+tri -7300 10100 -3800 11800 se
+rect -3800 10100 3800 11800
+tri 3800 10100 7300 11800 sw
+tri -10100 7300 -7300 10100 se
+rect -7300 7300 7300 10100
+tri 7300 7300 10100 10100 sw
+tri -11800 3800 -10100 7300 se
+rect -10100 3800 10100 7300
+tri 10100 3800 11800 7300 sw
+tri -12400 0 -11800 3800 se
+tri -12400 -3800 -11800 0 ne
+rect -11800 -3800 11800 3800
+tri 11800 0 12500 3800 sw
+tri 11800 -3800 12500 0 nw
+tri -11800 -7300 -10100 -3800 ne
+rect -10100 -7300 10100 -3800
+tri 10100 -7300 11800 -3800 nw
+tri -10100 -10100 -7300 -7300 ne
+rect -7300 -10100 7300 -7300
+tri 7300 -10100 10100 -7300 nw
+tri -7300 -11800 -3800 -10100 ne
+rect -3800 -11800 3800 -10100
+tri 3800 -11800 7300 -10100 nw
+tri -3800 -12400 0 -11800 ne
+tri 0 -12400 3800 -11800 nw
+<< end >>
