Jean Hoerni invented the planar process. The planar process is a manufacturing process used in the semiconductor industry to build individual components of a transistor, and in turn, connect those transistors together. This is the process by which integrated circuits are built. The concept of this was to view a circuit in its two-dimensional projection, allowing the use of film negatives to mask the projection of light exposed chemicals. This process involves the procedures of silicon dioxide, oxidation, silicon dioxide etching, and heat diffusion.
This invention changed the world by making circuits available to people. Circuits are very useful in our lives.I also use circuits in my life.
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