Patent ID: 6955975

Claim:
A method for joining a silicon plate to a second plate, comprising: placing the silicon plate and the second plate one upon another; directing a laser beam at the second plate through the silicon plate, a wavelength of the laser beam being selected so that only a small amount of energy is absorbed in the silicon plate; providing strongly absorbent material on a surface of the silicon plate facing the second plate, the strongly absorbent material almost completely absorbing energy of the laser beam and being hotmelted by energy introduced by the laser beam; cooling the hotmelted material and producing a bond between the silicon plate and the second plate; providing a circumferential seam which completely surrounds an area of the surface of the silicon plate, the bond being formed using the circumferential seam; providing an electrical feed-through lead within the circumferential seam in the silicon plate through which an electrical contact to an interior space is established which is situated between the silicon plate and the second plate.