Printed boards and printed board assemblies. Design and use - Land pattern design. Generic requirements for dimensional drawings of surface mounted components (SMD) from the viewpoint of land pattern design subscription-only These include all the standard

These include all the standard encodings

Electrical resistivity

an example of a technical datasheet

Either reflected light or the light transmitted through the surface could be used for the measurement

Printed boards and printed board assemblies. Design and use - Land pattern design. Generic requirements for dimensional drawings of surface mounted components (SMD) from the viewpoint of land pattern design subscription-only These include all the standard1 Scope This part of IEC 61188 specifies generic requirements for dimensional drawings of SMD from the viewpoint of land pattern design. The purpose of this document is to prevent land pattern design issues caused by lack of information and or misuse of the information from SMD outline drawing as well as to improve the utilization of IEC 61188 series. This document is applicable to the SMD of semiconductor devices and electrical components.