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Thanks to Samsung's new models, heat-pipes might become popular in smartphones

Posted: , by Alan F.

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Thanks to Samsung's new models, heat-pipes might become popular in smartphones
Samsung apparently wasn't convinced that the Snapdragon 820 chipset wouldn't overheat like its predecessor, the Snapdragon 810 chipset. After all, it was Samsung that practically led manufacturers to avoid the Snapdragon 810 SoC whenever possible last year. For Samsung, this led the company to employ their own Exynos 7420 chipset on all of its high end models, even in regions like the U.S. where traditionally a Snapdragon solution was used.

Manufacturers didn't have too many options to replace the Snapdragon 810 with last year. Some turned to the Snapdragon 808 SoC with its hexa-core CPU. Some phone vendors focusing on the Asian markets went with MediaTek. Others throttled down the Snapdragon 810 in an attempt to turn down the heat.

This diagram shows how a heat-pipe keeps a smartphone cool

This diagram shows how a heat-pipe keeps a smartphone cool

Samsung decided that for its new handsets, the Samsung Galaxy S7 and Samsung Galaxy S7 edge, those in the U.S. and China will get the phones powered by the Snapdragon 820. Others will find the Exynos 8890 chipset under the hood of their new Galaxy S7 or Galaxy S7 edge unit. But as we said, Sammy might not have been totally comfortable with the heat generated by Qualcomm's latest and greatest chip. We say this because there is speculation that those Samsung Galaxy S7 and Galaxy S7 edge units powered by the Snapdragon 820 feature a heat-pipe.

Adding a heat-pipe to a smartphone improves the device's ability to cool down. According to a report published today, this is a cooling solution that might be employed in more units in the near future. The report notes that most producers still tend to use graphite in combination with a phone's metal chassis to keep a phone from overheating. Other handsets use software to throttle the CPU when the phone gets too hot.

The majority of suppliers that produce smartphone heat-pipes are so conservative about demand for the product, they have yet to spend the money needed to build a mold. Most handsets require a custom design for the pipe; combined with the short life cycle that smartphones have, heat-pipe makers don't see the point in producing a mold. But if Samsung reveals that there is a heat-pipe inside some of its new flagship phones, perhaps demand for the part rises.

Watch the suppliers, because they will tell the story. Once you see them spending money on molds for heat-pipes, you can be sure that other smartphone manufacturers are using the pipes in order to offer better thermal management for their handsets.

source: Digitimes

107 Comments
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posted on 26 Feb 2016, 01:14

1. BradyCrack (Posts: 731; Member since: 29 Dec 2015)


Would that thicken the devic?

posted on 26 Feb 2016, 02:38 5

27. vincelongman (Posts: 4576; Member since: 10 Feb 2013)


These devices already had thin aluminum plates
Replacing those with thin heat pipes would have a thickness difference of probably about 0.3-0.5mm tops

I'm wondering when we will see Fujitsu's heat pipe sytsem
There one would be no different in terms of thickness
http://www.fujitsu.com/global/about/resources/news/press-releases/2015/0312-01.html

And their one would actually improve thermals noticeably
Unlike the current ones which are pretty useless except for glass/plastic phones

posted on 26 Feb 2016, 09:06 2

87. TechieXP1969 (Posts: 10700; Member since: 25 Sep 2013)


NO! It won't if done right. The Latest S I think are thicker because of the battery. Even if it does make it thicker, SO WHAT!

How thin do you want a phone to be. They are all already too thin or thin enough. We don't need cheap bending phones, which we saw last year.

posted on 26 Feb 2016, 10:37

99. j2001m (Posts: 2979; Member since: 28 Apr 2014)


This full post is crap phone area, both Samsung own CPU and the sd 820 got the heat pipes due to

SAMSUNG VR

posted on 26 Feb 2016, 09:10

90. xondk (Posts: 1598; Member since: 25 Mar 2014)


Not to any horrific degree, depending on how much extra cooling needed maybe 0.3-0.5 mm as also written below, which is not something you will notice, the whole 'thin' race is a bad thing anyway. Phones are getting so thin picking them up from a flat surface can be tricky, if you have larger hands + slick metal designs.

posted on 26 Feb 2016, 12:09

103. HighOnAndroidFTW (Posts: 185; Member since: 26 Apr 2015)


PHONE ARENA... Is not "speculation" that there is a heat pipe inside the s7/s7 edge with the 820 in them. Samsung announced it in their unpacked event that there was a great dissipating pipe in the new s7 and s7 edge that used an evaporation technique...

posted on 26 Feb 2016, 12:11

104. HighOnAndroidFTW (Posts: 185; Member since: 26 Apr 2015)


Heat* dissipation pipe

posted on 26 Feb 2016, 01:14 20

2. submar (Posts: 480; Member since: 19 Sep 2014)


Z5P is using dual heat pipe.

posted on 26 Feb 2016, 01:55 27

10. TerryTerius (Posts: 1928; Member since: 10 Apr 2014)


The difference being that Samsung is a far larger and arguably more influental manufacturer, and thus they have a much better chance of popularizing it.

posted on 26 Feb 2016, 02:39 9

28. vincelongman (Posts: 4576; Member since: 10 Feb 2013)


Sony have been using heat pipes since the Xperia Z2 AFAIK

But yea TerryTerius is right, Samsung are more influential

posted on 26 Feb 2016, 06:16

72. magnanimus (Posts: 542; Member since: 29 Mar 2013)


You guys mention this fact now but throw a fit when people say the same about Apple. They might not be the first to do some stuff but they certainly used their influential power to make it popular.

posted on 26 Feb 2016, 06:21 3

74. vincelongman (Posts: 4576; Member since: 10 Feb 2013)


Really?

Anyone but fanboys/haters would agree Apple is the most influential, followed by Samsung

posted on 26 Feb 2016, 06:53

78. TerryTerius (Posts: 1928; Member since: 10 Apr 2014)


I've never taken credit away from Apple for popularizing the modern smartphone or certain other ideas. So I'm not sure what you're talking about.

posted on 26 Feb 2016, 07:25

80. magnanimus (Posts: 542; Member since: 29 Mar 2013)


I'm not talking about you in particular. Its just one of the norms of the site. Lots of commenters don't giving Apple credit where due.

posted on 26 Feb 2016, 07:15 3

79. submar (Posts: 480; Member since: 19 Sep 2014)


You're right.
But many ppl will then claim that it is Apple's innovation and bash the others

posted on 26 Feb 2016, 09:07 2

89. TechieXP1969 (Posts: 10700; Member since: 25 Sep 2013)


No one throws a fit when its Apple, you just see it that way.

posted on 26 Feb 2016, 09:43

96. miket1737 (Posts: 3027; Member since: 17 Mar 2013)


lol techie

posted on 26 Feb 2016, 18:47

108. magnanimus (Posts: 542; Member since: 29 Mar 2013)


Quite ironic you'll reply to this techie despite the fact you're one of the people I'm referring to. I've seen countless comment from you downplaying touch ID, 64 bit processing and many other features Apple made popular.

posted on 26 Feb 2016, 09:06

88. TechieXP1969 (Posts: 10700; Member since: 25 Sep 2013)


yep and it still a suck phone from Sony.

posted on 28 Feb 2016, 02:29

111. romeo1 (Posts: 720; Member since: 06 Jan 2012)


At least it can multi task

posted on 26 Feb 2016, 01:17 1

3. insyt (Posts: 49; Member since: 16 Sep 2015)


Yeah this article is amazing. The truth is Samsung just copied this feature from devices that used the S810.

posted on 26 Feb 2016, 01:49 20

8. manojmcn (Posts: 574; Member since: 16 Jul 2015)


The difference here is, those manufacturers lied about the heat issue. They kept justifying SD810 and later were forced to switch to S808 to save face. Samsung genuinely explained the design in their presentation.

posted on 26 Feb 2016, 06:11 2

70. Subie (Posts: 956; Member since: 01 Aug 2015)


Microsoft was upfront with their liquid cooling of the sd810 last year.

posted on 26 Feb 2016, 10:52

100. mitchytan92 (Posts: 83; Member since: 02 Mar 2015)


Yeap. Remembering LG and HTC...

http://www.droid-life.com/2015/01/22/lg-ummm-no-the-snapdragon-810-is-overheating/

posted on 26 Feb 2016, 09:19

93. TechieXP1969 (Posts: 10700; Member since: 25 Sep 2013)


Not every device that had an S810 used this. Even if they did, Samsung is doing what is needed to insure, what happened to those other lazy OEM's won't happen to them which is why they were smart enough to not even use the S810. Even phone that did have a cheap-pipe, they still ran too hot and required a sofwtare updated to lower the clock to help prevent overheating.

Are they copying? Sure! but yes its so easy to choose the ignorant side of the situation. Copy of not, for such a device this is the only solution to deal with heat. After all PC's and GPU's have been using heat pipes for years. How is moving it to a phone copying? It is simply the only solution for a phone. Also those other OEM's I dont think uses a liquid cooling solutions. They just through some copper rods in the case and hoped for the best and they all got burned...LITERALLY.

So what OEM copy each other. If the copy provides me a benefit, do it.
Samsung isnt taking any credit from any OEM, like Apple typically does.

So what's you beef? EVERYONE COPIES> When is the last time you saw an original idea on a phone? Last time i saw one, it appeared on several Samsung devices first. #justsayin.

posted on 26 Feb 2016, 01:17 1

4. Shuhailnp (Posts: 8; Member since: 19 Apr 2013)


i thought the exynos version is using heat pipes in s7!

posted on 26 Feb 2016, 01:57 3

12. hakn5897 (Posts: 21; Member since: 19 Dec 2015)


exynos version also has a heat pipe

posted on 26 Feb 2016, 03:51

37. rd_nest (Posts: 1606; Member since: 06 Jun 2010)


You don't want heat pipes. If it uses heat pipes, it means there is throttling issues. Like Anandtech reported in Mi5 hand-on:

"A bit worrisome was the rather high 1 core power load but it’s still too early to determine if this is CPU-core related or rather power from another SoC block."

"820’s GPU is yet again oversized for smartphone form-factors as power figures are well above sustainable thermal envelope of phones such as the Mi5, so significant long-term throttling should be expected."

posted on 26 Feb 2016, 06:51

77. DoggyDangerous (Posts: 897; Member since: 28 Aug 2015)


No plz. Not again. I dont want any heat issue. I didnt purchase any phone in 2015 due to sd810/808. I dont want it happen again.

posted on 26 Feb 2016, 10:56 1

101. mitchytan92 (Posts: 83; Member since: 02 Mar 2015)


At least the heat pipes make the situation better than without heat pipes.

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