Methods of attaching surfaces together by adhesives, and devices including surfaces attached together by adhesives

A method comprising:

• depositing a first adhesive onto a plurality of areas on a first surface of a prism bar, the first adhesive forming patterns each of which at least partially surrounds a respective region of the first surface where there is no first adhesive;
• jetting a second adhesive onto each of the respective regions of the first surface, wherein the second adhesive has a viscosity lower than a viscosity of the first adhesive;
• bringing the first surface of the prism bar into contact with a surface of a substrate to form a stack;
• and
• curing the first and second adhesives.

A method comprising:

• placing a plurality of first items into a jig;
• while the first items are in the jig, depositing a first adhesive onto a plurality of areas on a first surface of each respective one of the first items, wherein the first adhesive forms patterns each of which at least partially surrounds a respective region of one of the first surfaces where there is no first adhesive;
• jetting a second adhesive onto each of the respective regions of the first surfaces, wherein the second adhesive has a viscosity lower than a viscosity of the first adhesive;
• bringing the first surface of each of the first items into contact with a surface of a wafer to form a stack;
• and
• curing the first and second adhesives.