| 摘要 |
<p>A thermal recording head having an electrically resistive heat-generating portion (8, 46, 66) formed on an thin-walled end portion of a ceramic substrate (2, 32, 60) and electrically connected to recording and return-circuit electrodes (4, 6, 20, 42, 44, 64, 66). A reinforcing or heat radiating member (12, 20, 26, 28, 68) is disposed on at least one of opposite sides of the substrate such that a portion of the reinforcing or heat radiating member is located at the thin-walled end portion of the substrate. The thin-walled end portion is preferably partially defined by a shoulder surface (40) which extends from one of opposite major surface of the substrate and terminates in the end face of the thin-walled end portion. The substrate preferably has a thermal conductivity within a range between 0.002 cal.cm/sec.cm<2>. DEG C and 0.03 cal.cm/sec.cm<2>. DEG C, while the heat radiating member preferably has a thermal conductivity higher than 0.01 cal.cm/sec.cm<2>. DEG C. The conductivity of the substrate is preferably lower than that of the heat radiating member. <IMAGE></p> |
