Solder mask inkjet inks for manufacturing printed circuit boards

A method of manufacturing an electronic device, the method comprising:

• jetting a radiation curable solder mask inkjet ink onto a dielectric substrate including an electrically conductive pattern;
• and
• curing the jetted solder mask inkjet ink;
• wherein
• the solder mask inkjet ink includes:
• a photoinitiator;
• a free radical polymerizable compound;
• and
• an adhesion promoter according to Formula I:
• wherein
• n represents an integer from 0 to 2;
• R2 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aryl group;
• E is selected from the group consisting of COR10 and a nitrile;
• R10 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl group or heteroaryl group, OR11, and NR12R13;
• R11, R12, and R13 are independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, and a substituted or unsubstituted aryl group or heteroaryl group;
• and
• R12 and R13 may represent atoms that form a 5 to 8 membered ring;
• if n=0, then:
• R1 is selected from the group consisting of a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl group or heteroaryl group, R3C═O, R4C═S, and R5SO2;
• R3 and R4 are independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl group or heteroaryl group, OR6, NR7R8, and SR9;
• R5, R6, and R9 are independently selected from the group consisting of a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, and a substituted or unsubstituted aryl group or heteroaryl group;
• R7 and R8 are independently selected from a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, and a substituted or unsubstituted aryl group or heteroaryl group;
• and
• R7 and R8 may represent atoms that form a 5 to 8 membered ring;
• if n=1 or 2, then:
• R1 is selected from the group consisting of a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, and a substituted or unsubstituted aryl group or heteroaryl group.