Source code for jitxexamples.jumpstart_kits.js1_stackup_components.hdi_stackup.main

"""Test design — the minimum needed to prove the substrate builds.

The circuit is deliberately empty. Part 1's acceptance is a verified
*substrate*: that it type-checks, translates, and renders a correct
cross-section. Placing components, routing, and applying these routing
structures to real topologies is JS2 work, so nothing here reaches
for a parts query or a route.

What this design does prove: the 41-entry stackup translates, all 12 via
structures register off the substrate walk, all 19 fabrication constraints are
present, and the four target routing structures resolve by impedance, with the
two neck structures beside them. The tests in
``tests/test_js1_hdi_stackup.py`` check each of those against the fab CSV.
"""

from jitx.circuit import Circuit
from jitx.design import Design

from .board import HDIBoard, HDISubstrate




class EmptyCircuit(Circuit):
    """No components — see the module docstring."""





class HDIStackupDesign(Design):
    """The 20-layer HDI substrate on its 80 x 80 mm board."""

    board = HDIBoard()
    substrate = HDISubstrate()
    circuit = EmptyCircuit()