PCB Libraries, Inc. | https://www.pcblibraries.com/forum/proportional-throughhole-padstacks_topic90_post1476.html
hawesa Report Post Thanks(0) Quote Reply Posted: 21 Aug 2012 at 8:30am I am trying to define a set of standard or default vias to be used by the layout team here and was intending to use the chart as a starting point but I need to understand how the values are calculated
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/bga-footprint_topic2430_post10003.html
. They show a chart from the IPC showing the reduction should be 20% of the nominal ball diameter. According to NXP's recommended footprint, the reduced size would be 0.34/0.43 = 79
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/topic2430&OB=DESC.html
. Since you say they're working on IPC-7351C, that must mean B is the current rev. Does that explain the difference between Library Expert's answer and the IPC-7351A chart
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/bga-footprint_topic2430_post10003.html
. They show a chart from the IPC showing the reduction should be 20% of the nominal ball diameter. According to NXP's recommended footprint, the reduced size would be 0.34/0.43 = 79
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2430&OB=ASC.html
. They show a chart from the IPC showing the reduction should be 20% of the nominal ball diameter. According to NXP's recommended footprint, the reduced size would be 0.34/0.43 = 79
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/bga-footprint_topic2430.html
. They show a chart from the IPC showing the reduction should be 20% of the nominal ball diameter. According to NXP's recommended footprint, the reduced size would be 0.34/0.43 = 79
GPD Global | https://www.gpd-global.com/co_website/pdf/lead-former/CF8-User-Guide-801-1-07.pdf
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1 References CF-8 Bills of Material with Exploded View Drawings (P/N 801-1-05) CF-8 Component Forming Dies Catalog (P/N 800-000) CF-8 Setup Sheet (P/N 850-003) Transport Wheel Maintenance Procedure (P/N 817-1-18) Table Of Charts Chart 1 Taped
GPD Global | https://www.gpd-global.com/pdf/lead-former/CF8-User-Guide-801-1-07.pdf
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1 References CF-8 Bills of Material with Exploded View Drawings (P/N 801-1-05) CF-8 Component Forming Dies Catalog (P/N 800-000) CF-8 Setup Sheet (P/N 850-003) Transport Wheel Maintenance Procedure (P/N 817-1-18) Table Of Charts Chart 1 Taped
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/adhesive-dispensing-systems/products/nozzles/rhythm-nozzes
Rhythm Nozzles for Elastic Attachment Applications Data Sheet Universal Nozzle Comparison Chart - Core Universal Nozzle Comparison Chart - Other Media
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/adhesive-dispensing-systems/products/nozzles/rhythm-nozzles
Rhythm Nozzles for Elastic Attachment Applications Data Sheet Universal Nozzle Comparison Chart - Core Universal Nozzle Comparison Chart - Other Media
