LCVD With Anode Magnetron

CATHODIC LCVD WITH ANODE MAGNETRON 2.1. IVD/Plasma Polymer/E-coat Systems 

Three kinds of adhesion tests were used to evaluate the interfacial adhesion behaviors of these systems the results are summarized in Table 32.3. As is evident from the data, excellent water-insensitive adhesion was obtained for all of the plasma interface-engineered IVD/plasma polymer/E-coat systems examined. 

In the case of direct application of E-coat to IVD specimens (one of the systems that showed excellent adhesion performance in both the tape test and the accelerated adhesion test), due to the high throw power of the E-coating process, the deep penetration of E-coat into the porous IVD structure creates mechanical interlocking and thus strong adhesion. Because of this development of mechanical interlocking, neither the tape test nor the accelerated adhesion test could distinguish the effect of plasma treatment on adhesion performance. 

Tabie 32.2 Sample Identification Codes and Associated Plasma Conditions for Sample Preparation 

TAr Plasma polymerization of TMS + Ar mixture in a closed reactor (25 mtorr TMS + Ar based on TMS/Ar ratio, lOOOV, 2 min) 

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