7 soldermask defined results

BGA PAD SIZE - PCB Libraries Forum

PCB Libraries, Inc. | https://www.pcblibraries.com/forum/bga-pad-size_topic3004.html

.5mm and below the padstack will always be Soldermask defined? And if it's Soldermask defined, then it will automatically be a Non-Collapsing type therefore should follow the pad oversize rule

PCB Libraries, Inc.

BGA PAD SIZE - PCB Libraries Forum

PCB Libraries, Inc. | https://www.pcblibraries.com/forum/bga-pad-size_topic3004_post11995.html

.5mm and below the padstack will always be Soldermask defined? And if it's Soldermask defined, then it will automatically be a Non-Collapsing type therefore should follow the pad oversize rule

PCB Libraries, Inc.

•  Planar Microvoids have been seen to affect solder joint •  reliability for BGAs, especially if they occur in sufficient •  density on soldermask defined lands

| https://www.eptac.com/wp-content/uploads/2012/06/eptac_07_18_12.pdf

PCB Fabrication Tolerances | Imagineering

Imagineering, Inc. | https://www.pcbnet.com/capabilities/fabrication/tolerances/

) The board size Tolerances on Standard Spec defined boards is +/- 0.005″ Note: We rout to your board size using the center of the board outline from the outside

Imagineering, Inc.

•  Head-on-Pillow phenomenon •  Standards and their adoption •  Reliability concerns 13 Limitations and Issues 3.5.8 Pad Cratering – defined as a separation of the pad from the PCB resin/weave composite or within the composite immediately adjacent to the pad, also know as “laminate crack

| https://www.eptac.com/wp-content/uploads/2013/08/eptac_08_21_13-1.pdf

Auction - Multi-Layer Technologies | The Branford Group

| http://www.thebranfordgroup.com/dnn3/Auction/MULA0623.aspx

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