摘要:
An ultrasonic probe provided with an ultrasonic wave-transmitting/receiving element comprising a 1-3 type or 2-2 type composite piezoelectric body exposing a piezoelectric monocrystal from at least one of the faces of the composite piezoelectric body, and an electrode mounted on at least one of the faces of the composite piezoelectric body, wherein the composite piezoelectric body comprises a piezoelectric monocrystal whose electromechanical coupling coefficient ratio k.sub.33 /k.sub.t is 1.6 or more, and a resin whose acoustic impedance Zp is 4.times.10.sup.6 kg/m.sup.2 s or less.
摘要翻译:一种超声波探头,其具有超声波收发元件,该超声波收发元件包括从复合压电体的至少一个表面露出压电单晶的1-3型或2-2型复合压电体,以及安装在复合压电体的电极 复合压电体的至少一个面,其中复合压电体包括机电耦合系数比k33 / kt为1.6以上的压电单晶,声阻抗Zp为4×10 6 kg / m 2·s以下的树脂。
摘要:
A CCD solid state imaging device can reduce a smear component. This CCD solid state imaging device comprises a plurality of photosensor sections (10) arranged in a matrix fashion, a vertical transfer register (5) having a transfer electrode (16) disposed at every column of the photosensor sections, a shunt line layer (33) connected to the transfer electrode (16) on the vertical transfer register (5), and a photo-shield layer (38) formed so as to surround the photosensor section 10 through an interlayer insulating layer (37) which covers the shunt layer (33), in which the interlayer insulating layer (37) is formed under an overhang portion (38a) of the photo-shield layer (38) to the photosensor section (10).
摘要:
In a semiconductor device such as a CCD solid-state imager having terminals connected with protection transistors, a strength against a static electricity applied between a terminal and a ground (GND) and a strength against a static electricity applied between a terminal and a substrate and a strength against a static electricity between terminals can be improved.