Piezoelectric Resonator Joining Frame Uniform Width

The patent applies local quality by varying the width of the joining member frame: the width is increased at corner portions where stress concentration occurs during thermal expansion/contraction, and maintained at a standard width at straight portions. This localized dimension adjustment ensures adequate joining material volume at critical stress points while avoiding excess material elsewhere, thereby maintaining hermeticity without unnecessary material consumption.

The patent implements local quality by introducing width variations in the joining member frame: corner portions have increased width to accommodate stress concentration during thermal cycles, while straight portions maintain a standard uniform width. This selective dimensioning provides adequate joining material volume at critical corners without increasing material consumption across the entire frame, thus resolving the contradiction between manufacturing simplicity and material efficiency.

The patent applies local quality by increasing the width of the joining member frame at corner portions where stress concentration occurs during thermal expansion and contraction. This localized width increase ensures sufficient joining material volume at critical stress points, preventing void formation and maintaining hermeticity, while the straight portions maintain standard width to avoid excessive material consumption.

The patent implements local quality by modifying only the corner portions of the joining member frame with increased width to address stress concentration during thermal cycles. The straight portions maintain a simple standard width. This minimal geometric variation at critical locations reduces stress concentration and improves strength without significantly increasing overall device complexity, as the modification is localized rather than global.