Reflection – Visualization for challenge on semiconductor process 

 Challenge & Selection 

 I am an engineer developing semiconductor manufacturing process . My challenge is to solve technical   problems such as a defect problem during semiconductor manufacturing process . We can improve yield   of memory device by solving defect problem . Defect problem happened during pilot production of high- end memory device . My favorite tool for finding solution is the visualization . After visualization of   process parameter and schematic of the process equipment , it is easy to engage with every stakeholders   and root - cause of problem can be captured by much higher possibility . Impact of visualization is   amazing . Semiconductor process is controlled by the recipe which is kind of table format of series of   numbers . It is not easy to capture the problem from the series of numbers but much easier to capture   the problem once after visualization of the parameter . Also , we have detailed drawings of each   hardware , but simple schematic drawing is more powerful than detailed drawings of individual   hardware . 

 Application 

 Recently , during pilot production of high - end memory device , we encountered a defect problem which   is critical to the manufacturing yield . A meeting was called after defining problem statement and success   criteria . We focused on visualizing each of the process parameters of the process . Series of control   parameter does n’t show the problem well . However , after visualization of each process parameter , one   of the process parameter shows one outstanding pulse signal which captures attention from every   stakeholder . Discussion becomes enriched after this finding . Visualization of this parameter reveals that   there is un - necessary high flow on one step of the process . Also , it visualized that plasma is turned on   before having enough time to pump out this gas . One stakeholder who is an expert on plasma added a   comment that it is a disaster to turn on the plasma before fully removing this gas . One stakeholder who   is an experienced similar problem comment that this high flow will disturb all particles to the wafer .   Once after capturing the potential risk , next focus is the visualization of problem with schematic   drawing . Each stakeholder can be aligned on the same page and mechanism was built with high   confidence level . After having strong model of the root - cause and solution , it is not hard to pull out   additional resources to find a solution of this problem . Experimental plan was made based on this root- cause and solution model and the hypothesis was justified by the experiment . Eventually , we could   achieve dramatic improvement of defectivity by this approach . 

 Insight & approach 

 By conducting visualization tool application on my work , I could learn that how much visualization is   effective to ( 1 ) find potential risk & root - cause , ( 2 ) engage with stakeholders , ( 3 ) make consensus , ( 4 )   mechanism model , ( 5 ) design experiment for solving problem . Since I experienced that visualization tool   is so effective for addressing a problem , I might also try series of other approach on this lesson for the   future . 


EMAIL: 
ID_NUM: 
NAME_STUDENT: 
PHONE_NUM: 
STREET_ADDRESS: 
URL_PERSONAL: 
USERNAME: 

### Task: You are a PII (Personal Identity Information) Detection. Given a essays written by students, you have to identify ONLY the following:
NAME_STUDENT - The full or partial name of a student that is not necessarily the author of the essay. This excludes instructors, authors, and other person names.
EMAIL - A student’s email address.
USERNAME - A student's username on any platform.
ID_NUM - A number or sequence of characters that could be used to identify a student, such as a student ID or a social security number.
PHONE_NUM - A phone number associated with a student.
URL_PERSONAL - A URL that might be used to identify a student.
STREET_ADDRESS - A full or partial street address that is associated with the student, such as their home address.
### Input: Reflection – Visualization for challenge on semiconductor process 

 Challenge & Selection 

 I am an engineer developing semiconductor manufacturing process . My challenge is to solve technical   problems such as a defect problem during semiconductor manufacturing process . We can improve yield   of memory device by solving defect problem . Defect problem happened during pilot production of high- end memory device . My favorite tool for finding solution is the visualization . After visualization of   process parameter and schematic of the process equipment , it is easy to engage with every stakeholders   and root - cause of problem can be captured by much higher possibility . Impact of visualization is   amazing . Semiconductor process is controlled by the recipe which is kind of table format of series of   numbers . It is not easy to capture the problem from the series of numbers but much easier to capture   the problem once after visualization of the parameter . Also , we have detailed drawings of each   hardware , but simple schematic drawing is more powerful than detailed drawings of individual   hardware . 

 Application 

 Recently , during pilot production of high - end memory device , we encountered a defect problem which   is critical to the manufacturing yield . A meeting was called after defining problem statement and success   criteria . We focused on visualizing each of the process parameters of the process . Series of control   parameter does n’t show the problem well . However , after visualization of each process parameter , one   of the process parameter shows one outstanding pulse signal which captures attention from every   stakeholder . Discussion becomes enriched after this finding . Visualization of this parameter reveals that   there is un - necessary high flow on one step of the process . Also , it visualized that plasma is turned on   before having enough time to pump out this gas . One stakeholder who is an expert on plasma added a   comment that it is a disaster to turn on the plasma before fully removing this gas . One stakeholder who   is an experienced similar problem comment that this high flow will disturb all particles to the wafer .   Once after capturing the potential risk , next focus is the visualization of problem with schematic   drawing . Each stakeholder can be aligned on the same page and mechanism was built with high   confidence level . After having strong model of the root - cause and solution , it is not hard to pull out   additional resources to find a solution of this problem . Experimental plan was made based on this root- cause and solution model and the hypothesis was justified by the experiment . Eventually , we could   achieve dramatic improvement of defectivity by this approach . 

 Insight & approach 

 By conducting visualization tool application on my work , I could learn that how much visualization is   effective to ( 1 ) find potential risk & root - cause , ( 2 ) engage with stakeholders , ( 3 ) make consensus , ( 4 )   mechanism model , ( 5 ) design experiment for solving problem . Since I experienced that visualization tool   is so effective for addressing a problem , I might also try series of other approach on this lesson for the   future .
### Output: 