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Fully functional four-channel transimpedance receiver array OEICs have been fabricated on 2" diameter InP substrates. Each receiver channel has a bandwidth of 200 MHz and an average input equivalent noise current of around 6 pA/ square root (Hz). The array chip is 3.7 mm*3.2 mm in size and contains 88 components. This is believed to represent the highest level of optoelectronic integration yet reported on InP.