PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351-smd-pth-reference-calculators_topic785_post11250.html
Jeff.M Report Post Thanks(0) Quote Reply Posted: 16 Feb 2021 at 11:10am I believe the formula you're referring to (Smin + Stol[RMS]) dates back to the IPC-SM-782 document from 1993
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic785.html
Jeff.M Report Post Thanks(0) Quote Reply Posted: 16 Feb 2021 at 11:10am I believe the formula you're referring to (Smin + Stol[RMS]) dates back to the IPC-SM-782 document from 1993
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic785&OB=DESC.html
Jeff.M Report Post Thanks(0) Quote Reply Posted: 16 Feb 2021 at 11:10am I believe the formula you're referring to (Smin + Stol[RMS]) dates back to the IPC-SM-782 document from 1993
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_creating-a-centroid-cpl-file-bottom-side-data_topic2611.xml
. The IPC-SM-782 was around for 18 years with Pin 1 Lower Left. One person (Jamie Smith) who never attended any Land Pattern meetings or any IPC development meetings attended the 2004 IPC APEX meeting and he questioned the Pin 1 Zero Component Orientation should be changed to the Upper
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/ipc7351-smd-pth-reference-calculators_topic785&OB=ASC_page2.html
Jeff.M Report Post Thanks(0) Quote Reply Posted: 16 Feb 2021 at 11:10am I believe the formula you're referring to (Smin + Stol[RMS]) dates back to the IPC-SM-782 document from 1993
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351-smd-pth-reference-calculators_topic785&OB=ASC_page2.html
Jeff.M Report Post Thanks(0) Quote Reply Posted: 16 Feb 2021 at 11:10am I believe the formula you're referring to (Smin + Stol[RMS]) dates back to the IPC-SM-782 document from 1993
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/ipc7351-smd-pth-reference-calculators_topic785_post9685.html
Jeff.M Report Post Thanks(0) Quote Reply Posted: 16 Feb 2021 at 11:10am I believe the formula you're referring to (Smin + Stol[RMS]) dates back to the IPC-SM-782 document from 1993
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/v2020-library-expert-enterprise-features_topic2423.html
) IPC has been promoting adding 0.05 mm (2 mil) annular ring to every pad since IPC-SM-782's release in March 1987. The concept was that the fabrication etching process could "over-etch" and therefore reduce the resulting pad size
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2423&OB=DESC.html
) IPC has been promoting adding 0.05 mm (2 mil) annular ring to every pad since IPC-SM-782's release in March 1987. The concept was that the fabrication etching process could "over-etch" and therefore reduce the resulting pad size
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/v2020-library-expert-enterprise-features_topic2423_post9968.html
) IPC has been promoting adding 0.05 mm (2 mil) annular ring to every pad since IPC-SM-782's release in March 1987. The concept was that the fabrication etching process could "over-etch" and therefore reduce the resulting pad size
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