What was one of the limitations of point-contact transistors connected to their fragility?

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Point-contact transistors, which were among the earliest types of transistors developed, had several limitations, particularly concerning their fragility. One of the main limitations related to their fragility is:

Mechanical Sensitivity:

• The point-contact transistor consists of a tiny metal point that makes contact with a semiconductor material. This delicate structure is highly sensitive to mechanical stress.
• Even slight pressure or vibration can disrupt the contact point, leading to inconsistent performance or complete failure of the transistor.
• This fragility made them unsuitable for many applications, especially in environments where physical movement or shock could occur.

In summary, the mechanical sensitivity of point-contact transistors due to their fragile construction limited their reliability and made them less suitable for widespread use compared to more robust transistor designs that followed.