diff --git a/AUTHORS b/AUTHORS index b03479b..b76be25 100644 --- a/AUTHORS +++ b/AUTHORS @@ -93,6 +93,7 @@ Werner Almesberger modules/sot.fpd modules/evqq7.fpd modules/dfn.fpd + modules/lga.fpd Xiangfu diff --git a/modules/HIERARCHY b/modules/HIERARCHY index 764b311..306f730 100644 --- a/modules/HIERARCHY +++ b/modules/HIERARCHY @@ -325,6 +325,8 @@ Dual DIP-38-300mil DIP-40-300mil Quad + LGA + LGA-16-3x3 QFN QFN16-LFCSP_LQ QFN28-Atmel diff --git a/modules/INFO b/modules/INFO index 908ff17..c296811 100644 --- a/modules/INFO +++ b/modules/INFO @@ -557,3 +557,13 @@ F: e-switch320 # # http://www.ck-components.com/index.php?module=media&action=Display&cmpref=13325&lang=en&width=&height=&format=&alt= # + +# ST LGA patterns (e.g., LGA-3x3-16 for LIS3DH) +F: LGA +# +# http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/TECHNICAL_NOTE/CD00134799.pdf +# +# Instead of using an asymmetric solder mask opening, we make the pads a bit +# larger on the outside. That way, the solder mask opens as well, plut the +# pads can be reached with a soldering iron. +# diff --git a/modules/Makefile b/modules/Makefile index f24051e..8484f0b 100644 --- a/modules/Makefile +++ b/modules/Makefile @@ -6,7 +6,7 @@ MODULES=8_10-card 8_10-socket-ra \ fiducial \ header he-2row-dip he-shrouded \ ir \ - ledsmd \ + lga ledsmd \ mdip meander-2450MHz mic-ra-dip mini-usb\ pads pads-array phonejack \ qfn qfp \ diff --git a/modules/lga.fpd b/modules/lga.fpd new file mode 100644 index 0000000..3c06023 --- /dev/null +++ b/modules/lga.fpd @@ -0,0 +1,95 @@ +/* MACHINE-GENERATED ! */ + +frame piny { + set name = i*f+a + + __0: vec @(dx*(py/2+pe), px/2) + __1: vec @(-dx*py/2, -px/2) + pad "$name" . __0 +} + +frame pinsy { + set y = e*(i-(ny-1)/2) + + set x = sx/2-py/2-b + + table + { dx, f, a } + { -1, -1, ny } + { 1, 1, pins-ny-nx+1 } + + loop i = 0, ny-1 + + __0: vec @(x*dx, y) + frame piny . +} + +frame pinx { + set name = i*f+a + + __0: vec @(px/2, -dy*py/2) + __1: vec @(-px/2, dy*py/2) + __2: vec .(0mm, dy*pe) + pad "$name" . __0 +} + +frame outline { + set corner = gap*2-(w+0.2mm)/sqrt(2) + + __0: vec @(sx/2, sy/2) + __1: vec __0(gap, gap) + __2: vec @(-sx/2, -sy/2) + __3: vec __2(-gap, -gap) + rect . __1 w + __4: vec @(-sx/2, sy/2) + __5: vec .(-gap, gap) + __6: vec .(corner, 0mm) + __7: vec __5(0mm, -corner) + line . __6 w +} + +frame pinsx { + set x = e*(i-(nx-1)/2) + + set y = sy/2-py/2-b + + table + { dy, f, a } + { -1, 1, ny+1 } + { 1, -1, pins } + + loop i = 0, nx-1 + + __0: vec @(x, y*dy) + frame pinx . +} + +package "LGA-$pins-${sizex}x${sizey}" +unit mm + +table + { nx, ny, sx, sy, e, b, px, py, pe } + { 3, 5, 3mm, 3mm, 0.5mm, 0.1mm, 0.25mm, 0.35mm, 0.2mm } + +set pins = 2*(nx+ny) + +set sizex = sx/1mm + +set sizey = sy/1mm + +set w = 5mil + +set gap = 0.2mm+w/2+0.1mm + +frame pinsx @ +frame pinsy @ +frame outline @ +measx outline.__2 >> outline.__0 -1.5mm +measy outline.__2 >> outline.__0 1.5mm +measx pinsx.__0 -> pinsx.__0 -1.5mm +measx pinx.__2 -> pinx.__0 py+0.5mm +measy pinx.__1 -> pinx.__0 0.2mm +measy pinx.__2 -> pinx.__1 0.2mm +measy outline.__3 >> outline.__5 1.5mm +measx outline.__3 >> outline.__1 -1.5mm +measy pinx.__1 >> outline.__2 -0.5mm