Negative-acting aqueous photoresist composition

   
   

The invention relates to a novel negative, aqueous photoresist composition comprising a polyvinylacetal polymer, a water-soluble photoactive compound and a crosslinking agent. The water-soluble photoactive compound is preferably a sulfonium salt. The invention also relates to forming a negative image from the novel photoresist composition.

L'invenzione riguarda un romanzo negativo, la composizione acquosa nel photoresist che contengono un polimero polyvinylacetal, un residuo photoactive solubile in acqua e un agente unente con legami atomici incrociati. Il residuo photoactive solubile in acqua รจ preferibilmente un sale di sulfonium. L'invenzione inoltre si riferisce a formare un'immagine negativa dalla composizione nel photoresist del romanzo.

 
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