What does yield mean in manufacturing?

Yield. It refers to the percentage of non-defective items of all produced items, and is usually indicated by the ratio of the number of non-defective items against the number of manufactured items.

What is manufacturing throughput?

Manufacturing throughput time is the actual amount of time required for a product to pass through a manufacturing process, finally converting from raw materials into finished goods. It includes the time of processing of raw materials into a component or sub-assembly.

What is the difference between first pass yield and throughput yield?

FPY stands for First Pass Yield, which is a yield metric. RTY stands for Rolled Throughput Yield. Both FPY and RTY take rework, retest or other auxiliary processes into account. RTY calculates with the number of defects, so it counts in defect distribution as well.

How do you calculate throughput yield?

Throughput Yield (TPY) is the number of acceptable pieces at the end of the end of a process divided by the number of starting pieces excluding scrap and rework (meaning they are a part of the calculation). Rework IS a part of the TPY calculation.

How is manufacturing yield calculated?

Production yield is a metric that results from dividing the number of good parts produced divided by the total number of parts started in production.

Why is yield important in manufacturing?

The economic performance of many modern production processes is substantially influenced by process yields. Their first effect is on product cost. In some cases low yields can cause costs to double or worse. Yet measuring only costs can substantially underestimate the importance of yield improvement.

What do you mean by throughput?

Throughput is the amount of a product or service that a company can produce and deliver to a client within a specified period of time. The term is often used in the context of a company’s rate of production or the speed at which something is processed.

What is the difference between throughput and output?

Output refers to the product or quantity of product, produced by certain operation, machine, factory – whatever. Throughput is the rate at which this product is being produced.

What is meant by first time yield?

First Time Yield, the most common way to calculate process yield, is the probability of a defect-free output from a process. FTY is unit sensitive, meaning it does not take into account whether the output unit is defective, and is calculated by dividing the number of units produced from a process by its inputs.

What is a good throughput yield?

Throughput yield (YTP) is the number of good units that are produced divided by the total number of units that go into each step of the process. The throughput yield of the printing process is 95\%. Then, 950 labels go to the laminating process, and 800 of the laminated labels are acceptable.