Allegro autosilk top, silkscreen top and assembly top three what's the difference

Autosilk top, silkscreen top and assembly top

Autosilk Top: The final Gerber, automatically generated screen printing layer. will automatically adjust the location of the screen, as well as the resistance to open the window, the screen will automatically disappear, to avoid the place of tin-coated silk screen printing (general Painting screen printing layer, the pad will not be painted on the screen, so there is no screen printing on the hole pad, there will be no impact. , so I rarely use the Autosilk top layer, after all, when the final screen printing, all need to adjust the position. I usually use silkscreen top directly.

Silkscreen top: When the library is built, the layers that are placed in ref des, and when the PCB is produced, are painted to the characters on the board, the device frame, or the company logo. I Gerber, generally directly out of this layer.

Assembly Top: Install the screen printing layer. Because some companies need to install drawings, some for manual welding, like to put character screen inside the device, such as the resistance, like to put its silk screen in the resistance symbol in the middle of the frame. such as resistance, and so on, want to print out to place in the installation of the resistance corresponding to the drawing position. Then we will use to install the screen printing layer. Usually can not use, or usually only with silkscreen top.
So the three silk printing layer each has its own role. In general, Cadence software defines these layers to be flexible, and each person's usage may be slightly different, all of which are not related, as long as you achieve the purpose you want to use