grams of dow d e r 560 were slowly added to the stirring dow d e r 332 5 the contents of the flask were stirred for 1 hour until both compounds were mixed 6 next 10 01 grams vectomer 4010 available from morflex were added drop wise 7 the mixture was stirred for 30 minutes 8 dow uvi 6976 the dow chemical company was added in an amount of 2 by weight based upon the combined weight of the ingredients already added taken as 100 by weight 9 the contents of the flask were mixed for 60 minutes 10 the mixture was allowed to cool slightly and then poured into an appropriate container using normal spin coating and uv curing techniques the formulation can be coated onto various types of wafers silicon quartz glass etc a cee 100cb spinner hotplate was used to apply formulation 4 to wafers the spin speed was 1 000 5 000 rpm the acceleration was 4 500 rpm sec and the spin time was 60 seconds the films were then baked for 6 sec at 112 u00b0 c a canon pla 501f parallel tight mask aligner with xenon lamp was used to cure the films the output was 2 7 mj sec cm 2 at 365 nm the time was 9 minutes and the total exposure dose was 1 5 j cm 2 representative film processing data for these materials are in table 7 the transmission data of the films shown in the graph of fig1 and expressed as a percentage were obtained using a.