English to Polish Tech/Engineering Electronics / Elect Eng integrated circuits

PZT (cyrkonian-tytanian ołowiu) w tekście pełni rolę materiału przetwornika z podłożem. W tym znaczeniu terminu 'coupon' trafiłam na tłumaczenia 'próbka' lub 'płytka'. Problem w tym, że to patent, w którym występują też 'board' i 'sample', a jak wiadomo, lepiej unikać wieloznaczności terminów. Czy coupon można by spolszczyć jeszcze jakoś inaczej?

Więcej kontekstu dla chętnych:
- To facilitate bonding, the ASIC and PZT coupon were moved to the same side, with only the recording electrodes on the backside of the substrate.
- The attachment pads for the PZT coupon was also shrunk and placed closer to the edge of the board, with the rationale that the PZT coupon did not have to wholly sit on the board, but could hang off it.
- It was found that the curing of the solder paste would often result in translating or rotating the PZT coupon or mote during reflow.
- The polarity of the PZT coupon has a small effect on its efficiency.
- To determine whether or not the coupon is in the correct position, check if the bottom face is larger than the top face.