Struct ProcessContext 

pub struct ProcessContext {
    pub recipe_step_id: String,
    pub recipe_step: RecipeStep,
    pub tool_state: ToolState,
    pub lot_id: Option<String>,
    pub chamber_id: Option<String>,
}

Full operational context for a single process run, passed to the DSFB engine so that admissibility gating is recipe-step-aware.

Example

use dsfb_semiconductor::process_context::{ProcessContext, RecipeStep, ToolState};

let ctx = ProcessContext {
    recipe_step_id: "STEP_002_MAIN_ETCH".into(),
    recipe_step: RecipeStep::MainEtch,
    tool_state: ToolState::Production,
    lot_id: Some("LOT-2026-0401".into()),
    chamber_id: Some("CH-A".into()),
};

// Main-etch tightens the envelope by 20 %.
assert!((ctx.admissibility_multiplier() - 0.80).abs() < 1e-9);

Fields

recipe_step_id: String

Fab-internal identifier string for the active recipe step.

recipe_step: RecipeStep

Canonical DSFB classification of the recipe step.

tool_state: ToolState

Observable tool-level state.

lot_id: Option<String>

Wafer lot / batch identifier (informational; included in traceability).

chamber_id: Option<String>

Chamber identifier (informational; included in traceability).

Implementations

impl ProcessContext

pub fn admissibility_multiplier(&self) -> f64

Admissibility envelope multiplier for this context.

The LUT below encodes industry-standard domain knowledge:

Recipe step	Multiplier	Rationale
GasStabilize	1.50 ×	Ramp transients are physically expected
MainEtch	0.80 ×	Yield-critical; tightest control window
Deposition	1.10 ×	Moderate tolerance
OverEtch	1.20 ×	Controlled endpoint; slightly relaxed
Seasoning	2.00 ×	Post-clean transients expected
Other	1.00 ×	Baseline

During a ChamberClean tool state, deviations are fully suppressed (f64::INFINITY — no finite residual can exceed an infinite envelope).

pub fn requires_warm_reset(&self) -> bool

Returns true when the grammar engine must issue a Warm Reset.

A Warm Reset clears accumulated grammar state to prevent false alarms after a chamber clean or during a seasoning cycle.

pub fn traceability_tag(&self) -> String

A terse string representation for traceability manifests.

Trait Implementations

impl Clone for ProcessContext

fn clone(&self) -> ProcessContext

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProcessContext

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ProcessContext

fn default() -> ProcessContext

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ProcessContext

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ProcessContext

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.