Patent ID: 8243766

Claim:
A laser diode system comprising: at least one semiconductor substrate in which is fabricated at least one laser diode, the at least one semiconductor substrate having a first substrate surface for bonding to another substrate, the first substrate bonding surface having a predetermined smoothness and a predetermined flatness, and at least one metal substrate having a first metal surface for bonding to another substrate, the first metal bonding surface having the predetermined smoothness and the predetermined flatness, the first substrate bonding surface directly, physically contacting the first metal bonding surface so as to be held to the first metal bonding surface without an intermediate joining or soldering layer being between the first substrate and first metal bonding surfaces, whereby the at least one metal substrate is bonded, by direct substrate bonding, to the at least one laser diode substrate without the use of an intermediate joining or soldering layer between the at least one laser diode substrate and the at least one metal substrate.