Estimated FET Success Rate
.calculator-container {
font-family: sans-serif;
max-width: 600px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ddd;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.calculator-form h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.calculator-form p {
text-align: center;
margin-bottom: 30px;
color: #555;
font-size: 0.9em;
}
.form-group {
margin-bottom: 15px;
}
.form-group label {
display: block;
margin-bottom: 5px;
font-weight: bold;
color: #444;
}
.form-group input[type="number"] {
width: calc(100% – 22px);
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1em;
}
.calculator-form button {
width: 100%;
padding: 12px 18px;
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color: white;
border: none;
border-radius: 4px;
font-size: 1.1em;
cursor: pointer;
transition: background-color 0.3s ease;
}
.calculator-form button:hover {
background-color: #0056b3;
}
.calculator-result {
margin-top: 30px;
text-align: center;
padding: 20px;
background-color: #e9ecef;
border-radius: 8px;
}
.calculator-result h3 {
margin-bottom: 15px;
color: #333;
}
#result {
font-size: 1.4em;
font-weight: bold;
color: #28a745;
}
function calculateFETSuccessRate() {
var gateLength = parseFloat(document.getElementById("gateLength").value);
var oxideThickness = parseFloat(document.getElementById("oxideThickness").value);
var dopingConcentration = parseFloat(document.getElementById("dopingConcentration").value);
var fabricationYield = parseFloat(document.getElementById("fabricationYield").value);
var testConditions = parseFloat(document.getElementById("testConditions").value);
var resultElement = document.getElementById("result");
if (isNaN(gateLength) || isNaN(oxideThickness) || isNaN(dopingConcentration) || isNaN(fabricationYield) || isNaN(testConditions)) {
resultElement.innerHTML = "Please enter valid numbers for all fields.";
resultElement.style.color = "red";
return;
}
if (gateLength <= 0 || oxideThickness <= 0 || dopingConcentration <= 0 || fabricationYield 100 || testConditions 100) {
resultElement.innerHTML = "Please enter valid positive values. Fabrication and Test Yields should be between 0 and 100.";
resultElement.style.color = "red";
return;
}
// Simplified model for FET success rate.
// A more complex model would involve detailed physics simulations.
// This model assumes that shorter gate lengths, thinner oxides, and
// specific doping concentrations can increase sensitivity to process variations.
// Fabrication yield and test condition margin directly impact the final success rate.
// Factor for gate length (shorter can be more sensitive, hence potentially lower intrinsic success)
var gateLengthFactor = 1.0;
if (gateLength < 1) gateLengthFactor = 0.9;
if (gateLength < 0.5) gateLengthFactor = 0.8;
// Factor for oxide thickness (thinner can be more sensitive, hence potentially lower intrinsic success)
var oxideThicknessFactor = 1.0;
if (oxideThickness < 5) oxideThicknessFactor = 0.9;
if (oxideThickness 5e17) dopingFactor = 0.95;
if (dopingConcentration < 1e16) dopingFactor = 0.9;
// Intrinsic success based on device parameters
var intrinsicSuccess = gateLengthFactor * oxideThicknessFactor * dopingFactor;
// Adjust by fabrication yield
var yieldAdjustedSuccess = intrinsicSuccess * (fabricationYield / 100.0);
// Adjust by test condition margin (a tighter margin means less room for error)
var effectiveTestMargin = (100.0 – testConditions) / 100.0;
var finalSuccessRate = yieldAdjustedSuccess * effectiveTestMargin;
// Ensure the final rate is within a reasonable range (0-100%)
finalSuccessRate = Math.max(0, Math.min(1, finalSuccessRate)) * 100.0;
resultElement.innerHTML = finalSuccessRate.toFixed(2) + "%";
resultElement.style.color = "#28a745"; // Green color for success
}