Graded dielectric layers and methods of fabricating such dielectric layers provide dielectrics in a variety of electronic structures for use in a wide range of electronic devices and systems. ; ensuring the pressure on the composition at point of entry is greater than 29. In an exemplary embodiment, the second component is one or more glycosaminoglycans, such as chondroitin sulfate, including CS4 andor CS6, dermatan sulfate, heparin, heparan sulfate, and keratan sulfate. 82 and an Abb\xe9 value of 43\u2266vd\u226653 with good chemical consistency and excellent crystallisation stability with the following composition :SiO20. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices. The connector may comprise a continuity coil seated within a post groove in spring-loaded contact with the nut and the post for promoting continuity.