Patent ID: 9724911
Date: 2017-08-08
CPC Classifications: B41F,B41P,H05K

Claim:
1. A method of screen printing by using a mask which has a first opening provided in a first region, a second opening provided in a second region which is thicker than the first region, and an intermediate region provided between the first region and the second region, said method comprising supplying a paste to the intermediate region; bringing a substrate into contact with the first region of the mask; moving a printing head from the intermediate region to an end portion on the first region, and then moving the printing head from the end portion on the first region to the intermediate region, to fill a portion of the paste into the first opening and to keep a remaining portion of the paste on the intermediate region; separating the substrate from the first region of the mask to form a layer of the paste corresponding to the first region on the substrate; bringing the substrate into contact with the second region of the mask; moving the printing head from the intermediate region to an end portion on the second region, and then moving the printing head from the end portion on the second region to the intermediate region, to fill at least a part of the remaining portion of the paste into the second opening; separating the substrate from the second region of the mask to form a layer of the paste corresponding to the second region on the substrate.