Issue link: https://iconnect007.uberflip.com/i/1457913
MARCH 2022 I DESIGN007 MAGAZINE 87 effort it takes to design and manufacture FHE devices. Reference Designs and Managed Reuse Blocks Now that we've seen how the materials data- base and the FHE PDK streamline the FHE design and manufacturing aspects, we will move on to what is one of the more important steps in the FHE design process: reference designs and managed reuse blocks. With these reference designs, when you start a brand new FHE design, you don't have to design and pull together everything from scratch. Because you don't have to create it from scratch, you don't have to go through all the effort of creating both the physical and the logical design for whichever manufac- turing process you're using. You just pick it from the managed library, and you add the connections between the blocks, and that's it. at's the plug-and- play approach that we're developing to really accelerate product development in the FHE space. For example, if you want Bluetooth, you sim- ply pull the module that supports Bluetooth 5. If you want wireless charging, you pull the wireless charging module. If you want envi- ronmental sensing, you pull the modules that provide those aspects. Obviously, this simpli- fies the entire process and greatly simplifies the designing aspect. To show how we're using that capability in our actual designs, let's look at our first refer- ence design. is is based off the semiconduc- tor nRF52840 Bluetooth 5 IC. is device uses an ultra-thin 50-micron thick, thinned bare die, Figure 4: Using HyperLynx DRC on an FHE PDK. Figure 5: Reuse of known-good circuit blocks accelerates the design process.