In a method of connecting chassis parts to produce a chassis assembly, at least one end of a first chassis part is connected with a second chassis part in an overlap zone by a form fit and an interference fit through an internal high pressure joining process. In one embodiment, the system may be used to produce a break apart frame that includes a first section and a second part which is disengagably connected to the first part by fastening members. For programmed cells, an upshift in threshold voltage due to a parasitic cell can be avoided by providing a higher pass voltage on an adjacent later-programmed word line than on an adjacent previously-programmed word line. A corrosion inhibitor is preferably added to the ink composition to adjust the zeta potential 2.