Issue link: https://resources.pcb.cadence.com/i/1180282
High Density Interconnect Working with HDI October 2019 8 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. shapes associated with the mechanical symbol. Use in conjunction with the design-level mechanical hole DRCs. For more information, see the Padstack Designer in the Allegro PCB and Package Command Reference and Types of Padstacks You Can Create in Defining and Developing Libraries in your documentation set. Non Standard Drill Types The Padstack Editor supports the following list of Non-standard drill types, most of which are used for HDI vias. These drill types are exclusively used with NC Drill applications and do not contribute toward Design Rule Checks. Use these non-standard types if you wish to separate those drills into their own individual files. ■ Laser ■ Plasma ■ Punch ■ Wet/Dry Etching ■ Photo Imaging ■ Conductive Ink Formation ■ Other For more information, see the Padstack Designer in the Allegro PCB and Package Command Reference. User-Definable Mask Layers The Padstack Editor supports up to16 user-definable mask layers. Mask layers can be used for custom applications, such as via plugging, filling, and gold deposition. DRC checking is not performed on these layers.