Technische Universiteit Eindhoven

Harmen Joseph Sebastiaan Dorren

Oded Raz

Pinxiang Duan

Elbertus Smalbrugge

A completely digital optical receiver is provided. The optical receiver includes a photodiode configured to provide a photodiode output responsive to an on-off keyed (OOK) optical input. Two or more digital inverters connected in series with each other are configured to receive the photodiode output and provide an amplified digital output. A digital clock and data recovery (CDR) circuit receives the amplified digital output and provides a clock output and a data output. A digital photodiode discharging circuit is connected to the photodiode and controlled by the clock output of the CDR circuit.

Fully digital CMOS based optical receiver

A method and device for interconnecting stacked die surfaces with electrically conductive traces is provided that includes bonding, using a first layer of a photoresist compound, a second die () on top of a first die (), heating the first layer above a pyrolyzation point of the photoresist compound, where the photoresist compound transitions to a stable layer, depositing a second layer of the photoresist compound (PR), using lithography, from a top surface of the first die () to a top surface of the second die (), heating the second photoresist compound layer to a liquid state, where the liquid photoresist compound forms a smooth convex bridge between the first die () top surface and the second die () top surface, and depositing an electrically conductive layer on the smooth convex bridge, where an electrically conductive trace is formed between the first die () top surface and the second die () top surface.

Growing community of inventors

Eindhoven, Netherlands

Harmen Joseph Sebastiaan Dorren