Conductive Pad

Fig. 6. Photomicrograph illustrating the assembling of the thin film sensor array with the printed circuit board, a. sensor array, b. counter electrode, c. pacer, d. channel for conductive adhesive with conducting pad of PCB, e. inlet hole for conductive adhesive,/ outlet hole for conductive adhesive, g. bonding pads...

Another fully conductive pad design is shown in Fig. 11.27. The pad is fully immersed in electrolyte solution as the polymeric perforated pad in the hybrid-ECMP system. The fully conductive pad is made of polymer as the matrix, with embedded conductive particles serving as conducting medium to carry the... 

Figure 11.28 is the schematic of an ECMP platen that carries a conductive pad. The counterelectrode (cathode) is in the back of the conductive pad. It can be segmented into three or more zones similar to the platen for the hybrid-ECMP process. 

FIGURE 11.27 Picture of a fully conductive pad, conductive polymer matrix with through pad perforations (from Ref 34). 

FIGURE 11.28 Schematic of a platen carrying the conductive pad (from Ref. 34). 

Imaging the position and depth of depletion layers below conductive pads and passivation layers, by utilizing the increasing penetration depth (range) with increasing electron energy... 

High conductivity pad materials are more effective in large sizes. Even so, Gardner (33) has reported worthwhile reduction in the maximum temperature... 

---