Pressure adaptive contact structure for flexible circuit board

A contact structure for a flexible circuit board, the flexible circuit board including a plurality of first contact pads formed on a substrate of the flexible circuit board spaced from each other, a spacing zone arranged between adjacent ones of the plurality of first contact pads, the contact structure comprising:

• at least one protection layer formed on the substrate;
• and
• a plurality of partly surrounding weakened portions formed in the spacing zone between adjacent ones of the first contact pads, the partly surrounding weakened portions partly surrounding a circumference of each of the first contact pads respectively, contact surfaces of the plurality of first contact pads respectively maintaining contact with corresponding contact points of a contacting circuit board in adaptively adjustable manner to accommodate height differences between adjacent ones of the first contact pads, the partly surrounding weakened portions preventing the flexible circuit board about the first contact pads from being stretched and pulled.