Method of improving production through cost of yield measurement

A method for controlling production or manufacturing costs by obtaining yield measurements of unit manufacturing for a multiplicity of products or production lines having a plurality of processes, comprising the steps of:

• determining a started units number for said plurality of processes;
• determining a cost per unit for each said unit of said plurality of processes;
• calculating an expected approved units number for said plurality of processes by multiplying said started units number by an expected yield measurement;
• calculating an actual approved units number for each of said plurality of processes by multiplying said started units number by an actual yield measurement;
• calculating an unapproved units number for each of said plurality of processes by subtracting said expected approved units number from said actual approved units number;
• calculating cost of yield measurements for said plurality of processes by multiplying said unapproved units number by said cost per unit;
• and
• providing a comparison of said cost of yield measurements for said plurality of processes.

A method for controlling and improving production or manufacturing costs by obtaining yield measurements of unit manufacturing for a multiplicity of products or production lines having a plurality of processes, comprising the steps of:

• determining an initial started units number for said plurality of processes;
• determining a cost per unit number for each said unit of said plurality of processes;
• calculating an actual yield measurement by dividing an initial approved units number by said initial started units number for each of said plurality of processes;
• providing a comparison of said actual yield measurement for said plurality of processes;
• calculating expected yield measurements by dividing an expected approved units number by said initial started units number for each of said plurality of processes;
• providing a comparison of said expected yield measurements for said plurality of processes;
• calculating an initial actual approved units number for said plurality of processes by multiplying a subsequent started units number by said actual yield measurement;
• calculating subsequent expected approved units numbers for said plurality of processes by multiplying said subsequent started units numbers by said expected yield measurement;
• calculating cost of yield measurements for said plurality of processes by multiplying said subsequent expected approved units number by said cost per unit;
• and
• providing a comparison of said cost of yield measurements for a plurality of processes.

A method for controlling production or manufacturing costs by obtaining and comparing measurements of unit manufacturing costs for production or manufacturing of a plurality of products or production lines, comprising the steps of:

• determining a started units number for each of a plurality of processes;
• determining an approved units number for each of said plurality of processes;
• determining a unit production cost for each said unit of each said process;
• calculating an unapproved units number by subtracting said units started number from said approved units number;
• calculating cost of yield measurement for each of said plurality of processes by multiplying said unapproved units number by said unit production cost for each of said plurality of processes;
• and
• providing a comparison of said cost of yield measurement for each of said plurality of processes.

A method for controlling and improving production or manufacturing costs by obtaining and comparing yield measurements of unit manufacturing for a plurality of products or production lines comprising the steps of:

• determining a started units number for each of a plurality of processes;
• determining an approved units number for each of said plurality of processes;
• determining a unit production cost for each said unit of each said process;
• calculating an actual yield measurement by dividing said approved units number by said started units number for each of said plurality of processes;
• providing a comparison of said actual yield measurements for each of said plurality of processes;
• calculating a number of unapproved units by subtracting said started units number from said approved units number;
• calculating cost of yield measurement for each of said plurality of processes by multiplying said number of unapproved units by said unit production cost for each unit;
• and
• providing a comparison of said cost of yield measurement for each of said plurality of processes.

A computer program product for controlling production or manufacturing costs by obtaining measurements of unit manufacturing for a multiplicity of products or production lines and having a started units number for a plurality of processes, said computer program product having:

• computer readable program code means for determining an approved units number for said plurality of processes;
• computer readable program code means for determining a unit production cost for each said unit in said plurality of processes;
• computer readable program code means for calculating an unapproved units number for each said process;
• computer readable program code means for calculating a cost of yield measurement for each of said plurality of processes by multiplying said unapproved units number by said unit production cost for said each said unit;
• and
• computer readable program code means for comparing said cost for each unapproved unit for each said process.

A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform steps for controlling production or manufacturing costs by obtaining measurements of unit manufacturing for a multiplicity of products or production lines and having a started units number for a plurality of, said method steps comprising:

• determining an approved units number for said plurality of processes;
• determining a unit production cost for each said unit in said plurality of processes;
• calculating an unapproved units number for each said process;
• calculating a cost of yield measurement for each of said plurality of processes by multiplying said unapproved units number by said unit production cost for said each said unit;
• and
• comparing said cost for each unapproved unit for each said process.