Meet the product engineers behind the Samsung Galaxy S5

Advertorial by Samsung: The opinions expressed in this story may not reflect the positions of PhoneArena!

Product engineering is an extremely intensive and sophisticated process involving a great deal of trial and error across teams to make things right. For its latest flagship smartphone, the Galaxy S5, Samsung focused on going back to the basics to deliver the capabilities that mattered most to consumers. Tasked with this mission along with Samsung's commitment to “people inspired innovation,” the product engineering team worked to ensure the Galaxy S5 was equipped with a great camera, a brilliant display and enhanced device protection features. In this post, we'd like to introduce you to three key engineers who helped bring the Galaxy S5 to life: Joncheon Wee, one of the men behind the development of the Galaxy S5's IP67 water and dust resistance features, Ki Hyoung Son, from Samsung's camera research and development group, and Jeong-Hun Kim, who helped with the development of Samsung Galaxy S5's Super AMOLED display.

Jongcheon Wee
Principal Engineer in the R&D Group

Jongcheon is a principal engineer in the R&D Group at Samsung. More specifically, he was recently involved in developing the dust and water resistance feature for the Galaxy S5. He has been working at Samsung Electronics for 18 years, and he started working on the water and dust resistance project in 2009 after being inspired by in-depth consumer feedback. “I feel that I have witnessed the boom of water and dust resistant technology first-hand, and with the Galaxy S5, I have worked very hard to bring users' actual value for their everyday lives.”

It is quite difficult to manage the quality of water resistant cell phones, and the team needs to work together to make all parts of the device water and dust resistant. A single leak can be a problem, so adopting the water resistant feature for a flagship model was a very challenging task. The Galaxy S5 had to be tested extensively, going through extreme experiments by enduring free fall and environment tests at a wide range of temperatures to ensure it would be water resistant in all conditions. The process was very grueling.

To provide the best quality product to consumers, all departments, including product development, manufacturing and inspection teams devoted themselves to improving the defective rate of the Galaxy S5. The proudest moment for Jongcheon was when his team tested 100 Galaxy S5 devices, putting them in a one-meter-deep water tank for 30 minutes. After the test, not one had water in it. “Thanks to everyone's efforts, we were able to make water resistance one of the Galaxy S5's key differentiating features.”

Ki Hyoung Son
Senior Engineer in the Camera R&D Group

Ki Hyoung is a senior engineer in the Camera R&D Group. After receiving a B.A. in Computer Engineering and an M.A. in Image Processing, he started work at Samsung's mobile division in 2007. Ki Hyoung is part of a specialized group focused on developing cameras that are used in smartphone devices. With the Galaxy S5, he aimed to bring feature improvements that consumers demanded the most, including faster autofocus.

Developing a camera is composed of two key phases. The first phase involves identifying the functions that need to be added or improved. From the beginning, the camera on the Galaxy S5 was intended to be one of the device's main features. The Galaxy S5 was the first device to include real time HDR and phase difference detection function. While adding new features can be a challenging process, the outcome is very rewarding when the set goals are achieved.

The second phase of the process involves bringing the camera to high-definition standards, which is Ki Hyoung's responsibility. “The process requires tuning to bring out the best color, heighten the definition, bring to life each detail within the image and reduce noise,” explains Ki Hyoung. “The tuning process is carried out manually. When we test the camera, we take hundreds of pictures at a time. This manual process ensures that we meet Samsung's high standards to offer a world-class camera for our consumers.”

Jeong-Hun Kim
Senior Engineer in the Display Lab

Jeong-Hun is a senior engineer in the Display Lab and has worked at Samsung for 10 years. Jeong-Hun and her team began working on the development of the Galaxy S5 last year. She was in charge of carrying out tests to enhance the display's definition, focusing on adjusting the display in changing environments so that users could have an optimal viewing experience in any light setting: night, day, indoors or outdoors.

The process of improving visibility in different settings is carried out manually with a naked eye, and tests are conducted both indoors and outdoors. The team may run into problems at times due to the weather. “Sometimes in the winter, we cannot carry out tests if it rains or snows all throughout the week,” explains Jeong-Hun. “During the summer, we can fully prepare ourselves with abundant sunlight even if the temperature is high, but in the winter, we can get impatient as the light settings change dramatically depending on the time of day. The manual testing process is worth the anguish in order to get the most optimized visual experience for our consumers.” When testing indoors, Jeong-Hun uses fluorescent lights, incandescent lights and LED lights to test the displays in all kinds of lighting situations.

“My favorite thing about my job is that I can do anything and Samsung always encourages it,” says Jeong-Hun. “All of the employees have passion and positive attitudes with the belief that they can do anything.”

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Related phones

Galaxy S5
  • Display 5.1" 1080 x 1920 pixels
  • Camera 16 MP / 2.1 MP front
  • Processor Qualcomm Snapdragon 801, Quad-core, 2500 MHz
  • Storage 32 GB + microSDXC
  • Battery 2800 mAh(21h 3G talk time)



2. Duketytz

Posts: 534; Member since: Nov 28, 2013

HOW MANY TIMES DO WE NEED THESE ARTICLES? Sorry for the caps, my phone was too enraged at this.

5. tech2

Posts: 3487; Member since: Oct 26, 2012

Donate some money to PA so they don't have to post these articles. If you don't like reading em simply DON'T OPEN AND READ THEM !

9. nohatenofanboy

Posts: 515; Member since: Jul 15, 2014

whut ?

12. tech2

Posts: 3487; Member since: Oct 26, 2012

The article clearly says 'sponsored' in the beginning. So obviously, PA is receiving financial benefit for posting this article. If someone doesn't want this article to appear on the site then simply donate an equal amount to the financial benefit PA received to avoid this article. Simplesss....

14. nohatenofanboy

Posts: 515; Member since: Jul 15, 2014

you are right

30. donfem

Posts: 708; Member since: Mar 30, 2011

I guess english and reading is difficult for some. :)

25. engineer-1701d unregistered

so now we have faces to the people that we need to find have them give me all fired Thank You PAafter looking at these people now I see why is 5 looks as crappy as it does

26. engineer-1701d unregistered

I love how they did not have the designers name or face in the article

4. StraightEdgeNexus

Posts: 3689; Member since: Feb 14, 2014

They have done a great job. It is a step up from previous SOAP iterations, but I would like an actual aluminium or Stainless steel frame around the sides.

17. Arte-8800

Posts: 4562; Member since: Mar 13, 2014

And the back They have stopped using quality cosmetics after the S1 They believe and love plastic There phones use to have quality materials before. That's one thing they don't give a rats about there phone, using cheap junk plastic. Even though consumers and tech websites along with editors writing negative about.

27. engineer-1701d unregistered

No metal on the back it slides out of the hand to easy

34. LGGThree

Posts: 7; Member since: Aug 03, 2014

Oh great job from you also .atleast u said good about some brand ... normally u dont like any new features done by sony or LG and always writing negative comments about LG and sony . Just remember every company is working hard for their products Ofcourse im a LG fan.

6. techloverNYC

Posts: 601; Member since: Nov 20, 2012

Not hating but water resistance and the half baked finger print scanner is not all that innovation. Heart sensor is as useless or gimmicky as gimmick feature will get on a smartphone.

7. tagont

Posts: 4; Member since: May 22, 2014

I agree. Get rid of the heart rate sensor and give us a better finger print scanner. Also decrease the bezel and leave the screen at 5 inch.

8. YodhaMali

Posts: 49; Member since: Jan 05, 2013

One thing I find impressive about Galaxy S flagships and Note series phones is their cameras. Their very detailed images, less noise reduction algorithms and the impeccable 1080p and 2160p footages are among the best right now.

10. nohatenofanboy

Posts: 515; Member since: Jul 15, 2014

I wanna see the design engineer

18. Arte-8800

Posts: 4562; Member since: Mar 13, 2014

He needs to be fired along with the Ceo Samsung phones are not good looking Look at there Tv, Laptop, Cameras, and stainless steel commercial microwaves. It screams quality and design. But there mobile section is in a mess.

20. nohatenofanboy

Posts: 515; Member since: Jul 15, 2014

completely agree. even samsung fridges loos better. 9 serie laptops looking elegant. mobile phones loos cheap look at the rim around phone, cheap looking plastic.. hope they change

24. vandits

Posts: 9; Member since: May 29, 2014

True that. Whoever it is, they need to be banned from designing...ever.

29. andynaija

Posts: 1255; Member since: Sep 08, 2012


31. marcski07

Posts: 600; Member since: Apr 25, 2014

nope to tv. they have sh*t tons of big bezeled tv, unlike sony and lg they have a good designed 32" led tv, the beautiful designed tv's of samsung are effin expensive, and other's looks generic, and still expensive compared to sony and lg that are same priced but looks beautiful! almost all samsung's device/appliances looks generic, there are only few that are designed good. UHD led tv of sony is the most realistic display than uhd of samsung, but i have not yet seen UHD of LG. samsungs refrigerators are the one I could only praise. :D

21. jibraihimi

Posts: 802; Member since: Nov 29, 2011

To tell the truth, i dont think they have any design engineer in mobile division......

22. Arte-8800

Posts: 4562; Member since: Mar 13, 2014

It could be true...?

23. vandits

Posts: 9; Member since: May 29, 2014

Exactlynmu thoughts, whoever it is, they need to be banned from designing anything...for life. Their TVs n fridges look good at least

11. jayc_m

Posts: 12; Member since: Jul 23, 2014

Good so far

13. Iodine

Posts: 1478; Member since: Jun 19, 2014

Jongcheon is a principal engineer in the R&D Group at Samsung. More specifically, he was recently involved in developing that ugly USB port flap and a strip of rubber under the backplate for the Galaxy S5..... Oh my god... I want an article about how someone other was working on "incredibly challenging" development of the heart rate sensor to "bring the simplest and most elegant hearth rate measuring experience to our beloved consumers."

15. GreekGeek

Posts: 1276; Member since: Mar 22, 2014

Too many S5 articles means only one thing, sales (not shipments) fell below expectations! And Samsung is scrambling like hell to dispose whatever remaining inventories they have right now.

33. marcski07

Posts: 600; Member since: Apr 25, 2014

if they want to dispose s5, they should sell it 60% off. :D

16. sergiobr

Posts: 718; Member since: Feb 25, 2013

Congratulations ! Let´s see the Note 4 now.

19. Arte-8800

Posts: 4562; Member since: Mar 13, 2014

With there own Exynos Cpu with Lte modems.

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