I present our efforts to develop a molecule chip: a microfabricated device for trapping ultracold molecules near a surface and interfacing them with photons in a microwave resonator. This work is a step towards a cavity quantum electrodynamics system, where molecular qubits could be coupled and controlled via microwave photons. Such a system would feature both the strong coupling of a molecular transition to cavity photons, similar to those found in superconducting systems, as well as long coherence times as can be found in typical atomic systems. I present the design and construction of a chip capable of trapping ultracold molecules, together with simulations informing the design choices. I report the microfabrication processes used to make the chip, characterize the quality of these processes and describe the design and construction of the apparatus needed to load molecules onto the chip and detect them. I also present a scheme for background-free imaging of molecules near the surface. Finally, I show how a microwave resonator could be used to control the state of a trapped molecule, and describe a scheme for generating non-classical states in a trapped spin-ensemble.