Electrical parts and method for manufacturing the same

A method of manufacturing an electrical part, said method comprising the steps of:

• (i) providing an electrical element;
• (ii) covering the electrical part with an addition reaction curable silicone composition;
• (iii) curing the addition reaction curable silicone composition to form a cured silicone resin;
• (iv) irradiating the surface of the cured silicone resin with ultraviolet radiation;
• and
• (v) resin sealing the ultraviolet irradiation treated cured silicone resin with a sealing resin;
• wherein the addition reaction curable silicone composition comprises:
• (A) an organopolysiloxane having an average of at least silicon-bonded alkenyl groups per molecule;
• (B) an organohydrogenpolysiloxane having an average of at least two silicon-bonded hydrogen atoms per molecule;
• (C) an addition reaction catalyst;
• and
• (D) a composition selected from the group consisting of
• I. a mixture of
• (a) an organosiloxane having silanol groups;
• (b) an epoxy group containing alkoxysilane;
• and
• (c) an organosiloxane having the average unit formula
• (R.sup.1 SiO.sub.3/2).sub.a (R.sup.2.sub.2 SiO.sub.2/2).sub.b (R.sup.2.sub.3 SiO.sub.1/2).sub.c (R.sup.3 O.sub.1/2).sub.d
• wherein R.sup.1 is an epoxy group containing monovalent organic group;
• each R.sup.2 is individually selected from the group consisting of substituted and unsubstituted monovalent hydrocarbon groups;
• R.sup.3 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;
• a, b, and d are>0;
• and c is.gtoreq.0;
• II. a mixture of components (a) and (b);
• III. a mixture of components (a) and (c)
• IV. a reaction mixture of components (a), (b), (c);
• V. a reaction mixture of components (a) and (b);
• and
• VI. a reaction mixture of components (a) and (c).