| 摘要 |
PROBLEM TO BE SOLVED: To obtain a coating contg. an opaque material or a shielding material. SOLUTION: This method for forming a coating on an electronic device comprises the steps of: applying a coating compsn., comprising phosphoric anhydride and a preceramic silicon-contg. material selected from among (i) a silsesquioxane hydrogen resin, (ii) a hydrolyzed or partially hydrolyzed compd. represented by the formula Rn Si(OR)4-n (wherein Rs each independently represents a 1-20 C aliph. substituent group, a 3-20C alicyclic substituent group, or a 6-20C arom. substituent group; and (n) is an integer of 0 to 3), (iii) a hydridopolysilazane resin, (iv) methylpolydisilylazane, and (v) boron-modified hydropolysilazane, on the surface of an electronic device; and converting the coating compsn. to a ceramic SiO2 -contg. coating. |
