Quality of mobile phone manufactures

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					Introduction
As per the final year students we had to learn statistical Quality Control subject for the first
time. This subject includes statistical quality control theory part and its applications. The
purpose of this subject is to present the technical tools that are needed to achieve quality
improvement in an organization. It is essential that products need the requirements of those
who use them. It provide the principle means by which a product is sampled, tested and
evaluated and the information in those data is use to control and improve the manufacturing
process

So According to the Assignment we selected the cellular phone industry to analyzed the three
products. Farther we moved to brand name Nokia, Sony Ericsson and Samsung. They are the
leading cellular manufactures in this industry. Not like as pass, now cellular phones are
evaluated with high technology and advance features. Therefore it is became a need of every
human being. As well as it’s is become a crucial item of every person. It became with keypad
in the pass and now it available with touch system. It’s very difficult to emerging the future
versions of cellular phone. Because the technologies developing day by day.
    Quality improvement methods of NOKIA

    Nokia is the most popular brand in the mobile phone industry. This Finnish icon is the
    world’s largest manufacturer of mobile devices and has around 40% of the global device
    market. Nokia was established in . Nokia has always used innovation as a key of success.
    Billion customers and relationships with hundreds of operators around the world, Nokia may
    well manage to hold its place.

    Not only they consider profit but also focus on quality of the product, in follow shows that
    their quality considerations.

    It is important to define tools that can be used to control the quality of the application during
    development. Quality control is a continuous process that extends throughout the
    development process, and it should be possible to backtrack later to identify the origin of
    mistakes that might have been made during the project.



    Quality control tools include, for example, technical reviews and review minutes, checklists,
    expert evaluations, and user feedback. The tools should be linked to specific phases and
    outputs of the development process.



    To evaluate quality, define specific and exact requirements for application that can be used as
    quality metrics. The metrics can require the following:

     Reduction in the number and severity of errors, and improvements in the findings of
      reviews and testing;

     Improving the rate of success at meeting project deadlines and milestones;

     Conforming to the requirement specification;

     Responsiveness to feedback from external experts, including the evaluations of usability
      experts.

    In addition to testing and evaluating the product that is under development, must regularly
    evaluate the application development process itself. Audit the existing process and gather
    feedback from the development team to determine whether there is any need for change.
Following tests are done to clarify quality of the products.

Components / Subassembly Test

Testing the quality of the transducers, microphones or subassemblies is important to reduce
the failure rate at the final test. Sorting out defective modules at this early stage is much more
efficient than rejecting the costly completed phones at the end of the production line.

Assembled PCB Test

It is recommended to test the mobile phone PCB (printed circuit board) after its production or
before inserting it into the mobile phone housing. Missing or defective components, passive
components with wrong value and PCB errors can be detected in this manner.

Final Acoustic Testing

The FX100 Audio Analyzer is ideally suited for the acoustic testing of transducers and
microphones of mobile phones. The optional Rub and Buzz detection ensures a 100%
correlation to the human ear, so making tests by human operators obsolete. It is the first
solution that enables the manufacturers to conduct a reliable automated quality test. The
system includes phantom power supply for the measuring microphone. The typical test cycle
time is < 1 second incl. a patented noise cancellation algorithm that immunizes the
measurement process against factory noise.

Nokia is followed some concepts to upgrade their image. In below describe some concepts.

Power saving concept

In Nokia phone has a power saving telecommunication equipment called as Base Transceiver
Stations (BTSs).Power saving is the major aspiration is that customers considered because
everyone try to save energy. Energy saving mean money saving. Building environmentally
friendly networks starts with energy efficiency in all the layers of the solutions.
Nokia Environmental Policy


Nokia company following eco-friendly system like reducing wastage and remove disposable
things environmental friendly, using environmental manufacturing practices.
Eg:- Nokia use disposable things to manufacture phone parts such as phone frame, transistors
etc. This system called as recycling.
Quality Improvement Methods of SONY ERICSSON

Sony Ericsson Company is a largest mobile phone manufacturer in the world. It is a Sweden
company. They produce various kinds of mobile phones. Every time they doing rapid
innovations and producing phones with new options to differentiate their products from
competitors. It establish in 1876 by Las Magnus Ericsson.

Sony Ericsson Company uses various technologies to improve their products quality.

      Green Heart Concept
      User Friendliness
      Produce phones to fulfill customers various needs.
      Acquiring Quality standards
      Use higher technology for manufacturing task.
      Attending various ages of peoples to ensure their products quality.


Green Heart Concept


In the Green Heart concept Sony Ericsson company try every time to produce their products
environmental friendly. This is one of strategy they use to improve the quality of products
and acquire the market. Because in the current situation according to the busy life style
human needs are rapidly change as a result of this situation the mobile phone evolving in to a
mobile computing device passes advanced PC- Like functionality. The demand for these
smart phones with processors is increase highly. Because people can do more work by using
these smart phones. Because these smart phones has more advance features than normal
mobile phones. Those are voice SMS, High quality audio and video, Advance 3D games,
Faster internet Browsing, Email, High quality camera, productivity applications, Bespoke
applications And Global Positioning System (GPS). These phones require more energy and
more Hardware resources than normal cell phones. That is badly affected to the environment.
Because they have to use more resources to produce these phones as well as have to use more
energy to these phones.
As well as consumption trends are equally affected to the environment. The mobile phone is
consumer electronic device with the highest replacement rate in the history. In Europe nearly
800 million mobile phone users replace their phones on average every 18 months. This
activity badly affect to the environment. Because those mobiles are produce by using
chemicals and not environmental friendly materials.
Sony Ericsson company use concept namely Green Heart to reduce these kind of bad
affections. They produce their phones by using recycled materials. As well as these phones
can recycle after replacing them. That concept helps them to improve their products quality
and to do the emotional effect to consumers to buy green products to protect the
environmental balance. As a result of following this concept Sony Ericsson Company can
win the 2nd place in the Green Peace Ranking.

Green Peace released the 16th version of their Guide to Greener Electronics, where they rank
the 18 top manufacturers of personal computers, mobile phones, TVs and games consoles
according to their policies on toxic chemicals, recycling and climate change. Green Peace’s
three goals with the ranking is to get companies to:

      Clean up their products by eliminating hazardous substances.
      Take back and recycle their products responsibly once they become obsolete.
      Reduce the climate impacts of their operations and products.

As well as they produce mobile phone batteries and mobile phone chargers according to the
energy server policy. That means their batteries and chargers are powerful and they use fewer
energy. That is directly it helps to reduce energy consumption and save the environment.

Now Sony Ericsson company include user manual in the mobile phone it is another result of
the Green Heart concept. If they produce one million mobile phones they have to use 350
tons of papers to make user manuals. 13000 trees and 75000 cubic meter of water want to
produce those papers. As the result of above activity we can save environment.

User Friendliness
Sony Ericsson phones produce more user friendly because by using them we can fulfill our
wants quickly. As well as if the person who use Sony Ericsson phone in the first time he can
achieve his wants quickly and easily.
As a Example if we have to create our mobile’s internet settings in Sony Ericsson phone we
can go to the internet settings and select one of them or edit them. But in Nokia phone we
have to go two places one place for select settings and other place to edit settings. That is not
easy to the person who use the Nokia phone in the first time.
Produce phones to fulfill customers various needs.
Sony Ericsson Company produces various types of phones to match the various needs of
customers. They produce
       walkman phones ( W series) for the users who like to listen songs every time with
        high audio performance.
       Cyber shot camera phones ( C series ) and camera phones ( k series) for the users who
        likes to use high quality camera.
       PDA or Smart phones ( P series ) for the users who likes to use advance mobile
        phones with higher performances.


Acquiring Quality standards


As well as Sony Ericsson company acquire quality standards


       IS0 9001 (Quality Management System)
       ISO 14001 (Environmental Management Standard)

       OHSAS 18001 (Occupational Health & Safety Management System)

Use higher technology for manufacturing task
Mobile phone manufacturing process is very complicated process. In this process Sony
Ericsson company use computerized machines in higher technologies. Because defective rate
of computerized system is very low. By using this kind of system they can eliminate waste
and improve their products quality.


Attending various ages of peoples to ensure their products quality
Sony Ericsson Company has product testing institute to check their products quality. In this
institute they use customers’ ideas to ensure the quality of their products. They attending
small children, seniors, Guido’s, Models, Glam rockers to compare their products quality
with same phones in various brands.
Quality Improvement Methods of SAMSUNG

Samsung Electronics was founded in 1969 in Daegu, South Korea as Samsung Electric
Industries, originally manufacturing electronic appliances such as TVs, calculators,
refrigerators, air conditioners and washers

Samsung Electronics sold 235 million mobile handsets in the year 2009. At the end of 3rd
Quarter 2010 Samsung had surpassed the 70 million unit mark in shipped phones, giving it a
global market share of 22% trailing Nokia by 12% Overall, Samsung sold 280 million mobile
phones in 2010, corresponding to a market share of 20.2.

Production Process of Samsung mobile

      Industrial Design

      Conceptual design

      Creating the initial requirement document

      Interaction design and prototyping

      Visual and information design

      implementation

Samsung’s quality policy

Its quality policy is best on an effective quality system which is used for produce best
products and services that exceed their customers’ requirements and expectations. All
executives and employees of SAMSUNG are making continuous efforts to achieve the very
best quality in all products and services which it offer for customer

Samsung obtained ISO/TS16949, the international standard for automotive industry, in 2004.
And it also achieved TL9000, the international standard for Telecommunication industry, in
Oct. 2001. In addition, Samsung is continuously upgrading the quality management system in
all stages ranging from order receipt, development, production to shipment.

Some Achievements Samsung Telecommunication

      ISO 9002 Certification

      Double Productivity Award received from SEC Korea.

      Excellence in Consumer Electronics Award
      Rajiv Gandhi Excellence Award

      Samsung Quality Award – Gold Level

      National Quality Circle Award



Environment Policy

Recycling

Recycling is the first step toward environmental protection. That is why Samsung Electronics
has actively participated in a recycling program for end-of-life electronic appliances. Through
the program, Samsung is leading the efforts to create a recycling-based society where
discarded products are reused as resources for manufacturing, and at the same time it is
making great contributions to preserving the environment and using resources efficiently.
When developing mobile phones, Samsung takes account of not only the performance, price,
quality, and design, but also environmental issues that can arise in the manufacturing process

Eco- Declaration

Samsung produces mobile phones that carry Product Eco-Declaration (PED), a description of
environmental features of all phones such as weight, energy consumption, and reusability.
Samsung is continuously expanding the application of the system into more of its mobile phones.



Electromagnetic waves

Specific Absorption Rate (SAR) is a measure of the rate at which radio frequency energy is
absorbed by the body when using a mobile phone. The national and international standards
impose upper limits on SAR. All of Samsung mobile phones are designed to meet the
standards.



Samsung Unveils Environment-Friendly Mobile Phones
Samsung follow the environmental friendly methods in their production process. Also
Samsung introduced series of environment friendly phones such as W510, F268. When
producing W510, Samsung did not use any heavy metals, such as Lead, Mercury, and
Cadmium. Charger of those phones also made accordance with environment protection.

				
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posted:9/21/2012
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