The present invention in one embodiment provides a compound of Formula I: or a pharmaceutically acceptable salt thereof, wherein the variables shown in Formula I are as defined in the specification. According to various embodiments, photoresponsive materials and light are delivered in a controlled fashion to produce a patterned distribution of a material in the skin. Body also provides runner surfaces upon which body may slide when body ends of body are moved away from board and is shaped to reduce wear on biasing means. In a variation of the interconnect structure, a metal column is fabricated onto the interconnection pad prior to electroplating the solder layer. The insulating strip body is formed to receive a clipped-on covering profile that covers the openings.