摘要:
Ultra-high speed semiconductors that are usually very thin and therefore very fragile still require connection to a circuit board and a heat transfer pathway. Ultra-high speed circuits and semiconductor devices are provided with a carrier plate formed on the backside of a wafer or substrate by a variety of deposition methods. The carrier plate is a series of metal layers, each being selected to enable the attachment of a relatively thick copper carrier plate to the backside of the substrate or wafer.
摘要:
Protection against x-ray radiation is provided by a thin layer of a zinc-based alloy. An electronics component housing and lid are made to include a base of a lightweight alloy, a thin coating of the zinc-based alloy and an exterior finish metal layer. The zinc-based alloy provides excellent radiation protection and other advantages, without a significant weight penalty.
摘要:
Ultra-high speed semiconductors that are usually very thin and therefore very fragile still require connection to a circuit board and a heat transfer pathway. Ultra-high speed circuits and semiconductor devices are provided with a carrier plate formed on the backside of a wafer or substrate by a variety of deposition methods. The carrier plate is a series of metal layers, each being selected to enable the attachment of a relatively thick copper carrier plate to the backside of the substrate or wafer.