Electronics Forum | Thu Apr 11 14:31:15 EDT 2002 | aaelect
We're having some problems with 0402's tombstoning. On a board with about 300 parts we're getting about 12 to 20 tombstones per board. The caps seem to do it more often than the res. The pads appear to be in accordance with IPC SM 782 amendment 1, S
Electronics Forum | Wed Jun 12 10:42:06 EDT 2002 | stepheno
Check your land patterns. I believe someone once made a typo on specs for land pattern spacing and the specs are still being used by some people. I worked for a CM that had a customer that spaced the pads for 0402's too far apart. It was the only
| https://unisoft-cim.com/crosschecking-pcb-component-footprint-and-bom-footprint.html
(correct solder pad size and land pattern) for the same component listed in the Bill of Materials (BOM). The mismatch of component footprint spacing is usually an error created when components on the PCB assembly ( PCBA
| https://www.eptac.com/instructors/
+ Advanced Designer Certification Chairman of IPC-2221/2222 Designer Subcommittee Chairman of IPC-2226 HDI Design Subcommittee Co-chairman of IPC-7351 Land Pattern Subcommittee Previous Chairman of IPC
