Crystal device, crystal oscillator, and crystal oscillator

The invention provides a crystal device, a crystal oscillator and a crystal oscillator which can improve crystal impedance (CI) characteristics and reduce deterioration caused by vibration noise. This crystal device is provided with a susceptor (11) on which a blank (20a) is mounted in a package (10), the blank (20a) is bonded to a second pattern part (11a2), a second pattern part (11b2), a second pattern part (11c2), and a second pattern part (11d2) formed on the surface of the bottom surface of a recess at four points across the susceptor (11), and the planar area of the blank (20a) is 10-30% of the planar area of the package (10). In particular, the planar area of the blank (20a) is 13% or more and 18% or less relative to the planar area of the package (10). 本发明提供一种能够改善晶体阻抗(CI)特性并且减少振动噪声引起的劣化的晶体器件、晶体振子及晶体振荡器。本发明的晶体器件包括在封装体(10)内搭载坯料(20a)的基座(11)，坯料(20a)以四点隔着基座(11)粘合于形成于凹部底面的表面的第二图案部(11a2)、第二图案部(11b2)、第二图案部(11c2)、第二图案部(11d2)，相对于封装体(10)的平面的面积，而将坯料(20a)的平面的面积设为10％以上且30％以下，尤其是相对于封装体(10)的平面的面积，而将坯料(20a)的平面的面积设为13