Substrate Etching Rocks
Original Publication Date: 1980-Apr-01
Included in the Prior Art Database: 2005-Feb-13
Rack R uses interchangeable and multipositionable rods 10 (Fig. 1). Each rod 10 has a center cylindrical core 11 of titanium, for example, and an outer concentric etch resistant plastic molded sleeve 12. Each sleeve has four rows of interleaved radially oriented, cylinderically shaped plugs 13 (Fig. 2). Removable pins 14 (Fig. 3) affix rods 10 to end members 15L, 15R and straps 16 in a parallel manner. Member 15 has windows or openings 15A which are in alignment with the windows 17 of slidable retainer member 18 when the latter is in lower position D, (arrow 19 in Fig. 1).