ATE Throughput Calculator

Work out ate throughput instantly with clear inputs, formula shown and shareable results.

About ATE Throughput Calculator

ATE throughput is 3,600 divided by test time, times sites, times uptime — then multiplied by yield for good die out. The tester-hours-per-million figure is what capacity planners use to decide how many testers a product ramp needs.

Formula

ATE throughput

gross = 3600 / test time x sites x uptime; good = gross x yield

Worked example

With the default values below, ATE Throughput Calculator returns Good die per hour of 5,299. Change any input above and every figure here is recalculated in your browser.

Inputs used

Test time: 2.2 s
Test sites: 4 sites
Yield: 92 %
Tester uptime: 88 %

Results

Good die per hour: 5,299 die/h
Gross die per hour: 5,760 die/h
Good die per day: 127,181 die
Tester hours per million good die: 189 h

Step by step

1Values used
2ATE throughput
3Good die per hour= 5,299 die/h
4Gross die per hour= 5,760 die/h
5Good die per day= 127,181 die
6Tester hours per million good die= 189 h

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why include yield in throughput?

Because failing die consume full test time but produce no revenue. Early-ramp low yield can double the effective test cost per shipped part.

How is test time reduced?

Adaptive test flows that stop early on failure, concurrent test of independent blocks, and moving coverage into built-in self-test that runs at full speed.