Add Partcl to professional design help listings

_design_help/professional/partcl.md

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+---
+layout: author_page
+title: "Partcl"
+sub_title: "GPU-Accelerated Digital Implementation & Timing"
+category: "professional"
+avatar: "assets/images/design-help/partcl-logo.png"
+website: "https://partcl.com/"
+social_accounts:
+  - icon: "jam jam-globe"
+    url: "https://partcl.com/"
+---
+
+**[Partcl](https://partcl.com/)** builds Boson, a GPU-native digital
+implementation engine covering synthesis, placement, clock tree synthesis,
+and static timing analysis. By running the entire flow on GPUs, Boson turns
+full-chip iterations that traditionally take hours into minutes.
+
+For GF180MCU shuttle projects, that speed changes how you design:
+
+- **Explore before you commit**: run many architecture, floorplan, and
+  constraint experiments before the shuttle deadline instead of one or two
+- **Timing confidence before tapeout**: fast timing analysis with parasitics
+  lets you verify your design closes timing before committing to a shuttle slot
+- **Works alongside your existing flow**: use Boson for rapid QoR and timing
+  exploration while signing off with the open-source flow you already trust
+
+Partcl's team combines EDA and GPU-computing backgrounds, and offers direct
+support for teams pushing timing or turnaround limits on their designs.