Liquid discharge apparatus and print head drive circuit

A liquid discharge apparatus comprising:

• a print head that discharges a liquid in response to a drive signal;
• and
• a print head drive circuit that outputs the drive signal, wherein
• the print head drive circuit includes an amplification circuit that outputs the drive signal amplified by a first transistor and a second transistor,
• the first transistor includes
• a first conductor that functions as an emitter electrode,
• a second conductor that functions as a base electrode,
• a third conductor that functions as a collector electrode,
• a first layer that includes a first semiconductor region of a first conductive type having a trench and a second semiconductor region of a second conductive type provided in the trench,
• a second layer that includes a third semiconductor region of the second conductive type, and
• a third layer that includes a fourth semiconductor region of the first conductive type, a fifth semiconductor region of the first conductive type, and a sixth semiconductor region of the second conductive type positioned to be separated from the fifth semiconductor region,
• the first layer is disposed above the third conductor,
• the second layer is disposed above the first layer,
• the third layer is disposed above the second layer,
• the first conductor is disposed above the fifth semiconductor region, and
• the second conductor is disposed above the sixth semiconductor region.