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OT: Qualcomm to send NXP to the chop shop

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  OT:  Qualcomm to send NXP to the chop shop Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2016-10-25 16:23 -0700
    Re: OT:  Qualcomm to send NXP to the chop shop Winfield Hill <hill@rowland.harvard.edu> - 2016-10-25 16:52 -0700
      Re: OT:  Qualcomm to send NXP to the chop shop Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2016-10-25 18:10 -0700
        Re: OT:  Qualcomm to send NXP to the chop shop Lasse Langwadt Christensen <langwadt@fonz.dk> - 2016-10-25 18:21 -0700
          Re: OT:  Qualcomm to send NXP to the chop shop Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2016-10-25 19:27 -0700
          Re: OT:  Qualcomm to send NXP to the chop shop Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2016-10-25 19:27 -0700
    Re: OT:  Qualcomm to send NXP to the chop shop Robert Latest <boblatest@yahoo.com> - 2016-10-29 17:14 +0000
      Re: OT:  Qualcomm to send NXP to the chop shop Winfield Hill <hill@rowland.harvard.edu> - 2016-10-29 11:12 -0700
      Re: OT:  Qualcomm to send NXP to the chop shop Winfield Hill <hill@rowland.harvard.edu> - 2016-10-29 11:41 -0700
        Re: OT:  Qualcomm to send NXP to the chop shop krw <krw@nowhere.com> - 2016-10-29 20:02 -0400
          Re: OT:  Qualcomm to send NXP to the chop shop Jasen Betts <jasen@xnet.co.nz> - 2016-10-30 00:47 +0000
          Re: OT:  Qualcomm to send NXP to the chop shop Robert Latest <boblatest@yahoo.com> - 2016-10-30 10:18 +0000
            Re: OT:  Qualcomm to send NXP to the chop shop Winfield Hill <hill@rowland.harvard.edu> - 2016-10-30 11:24 -0700
              Re: OT:  Qualcomm to send NXP to the chop shop Robert Latest <boblatest@yahoo.com> - 2016-11-01 19:04 +0000
                Re: OT:  Qualcomm to send NXP to the chop shop Winfield Hill <hill@rowland.harvard.edu> - 2016-11-02 09:20 -0700
                  Re: OT:  Qualcomm to send NXP to the chop shop Robert Latest <boblatest@yahoo.com> - 2016-11-04 20:40 +0000
                    Re: OT:  Qualcomm to send NXP to the chop shop Winfield Hill <hill@rowland.harvard.edu> - 2016-11-04 14:22 -0700
                      Re: OT:  Qualcomm to send NXP to the chop shop Robert Latest <boblatest@yahoo.com> - 2016-11-07 18:01 +0000
                        Re: OT: Qualcomm to send NXP to the chop shop Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2016-11-07 14:29 -0500
                          Re: OT: Qualcomm to send NXP to the chop shop Robert Latest <boblatest@yahoo.com> - 2016-11-08 20:22 +0000
                            Re: OT: Qualcomm to send NXP to the chop shop Gerhard Hoffmann <ghf@hoffmann-hochfrequenz.de> - 2016-11-09 09:27 +0100
                              Re: OT: Qualcomm to send NXP to the chop shop Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2016-11-09 11:17 -0500
                              Re: OT: Qualcomm to send NXP to the chop shop Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2016-11-09 11:27 -0500
                              Re: OT: Qualcomm to send NXP to the chop shop Robert Latest <boblatest@yahoo.com> - 2016-11-09 19:46 +0000
                              Re: OT: Qualcomm to send NXP to the chop shop JM <dontreplytothis173@gmail.com> - 2016-11-09 19:48 +0000
                                Re: OT: Qualcomm to send NXP to the chop shop Gerhard Hoffmann <ghf@hoffmann-hochfrequenz.de> - 2016-11-11 00:09 +0100
                                  Re: OT: Qualcomm to send NXP to the chop shop Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-11 09:35 +0000
                                    Re: OT: Qualcomm to send NXP to the chop shop JM <dontreplytothis173@gmail.com> - 2016-11-13 21:22 +0000
                        Re: OT:  Qualcomm to send NXP to the chop shop Winfield Hill <hill@rowland.harvard.edu> - 2016-11-07 13:22 -0800
                          Re: OT:  Qualcomm to send NXP to the chop shop Robert Latest <boblatest@yahoo.com> - 2016-11-08 20:11 +0000
      Re: OT: Qualcomm to send NXP to the chop shop Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2016-10-29 19:40 -0400

Page 2 of 2 — ← Prev page 1 [2]

#434352 — Re: OT: Qualcomm to send NXP to the chop shop

Am 08.11.2016 um 21:22 schrieb Robert Latest:
> Phil Hobbs wrote:
>> Hmm, they don't list JFETs anywhere there.
>
> That's right, and I don't understand it. I know NXP sells the great BF862,
> but I don't know where it's made (not in one of their two discrete fabs),
> it's not in their selection guides, you won't find it under "Applications"
> nor under "Products" on the website. The website only admits to its
> existence if you directly enter the type number in the search box.

I have stored that from diyaudio.com:

======
Thread Home > Forums > Design & Build > Parts  NXP BF862 warning

I got two batches (100 pcs. each) of BF862 low noise n-channel jfets, 
from two different providers (DigiKey Corp. | Electronic Components 
Distributor | United Kingdom Home Page and Mouser Electronics - 
Electronic Components Distributor). Both are 100% genuine NXP parts, the 
only difference being the origin. One batch is marked 2Aw (w stands for 
China) and the other 2Ap (p stands for Hong Kong).

While they both have the noise floor @100KHz as per the datasheet 
(~0.8nV/rtHz), the Chinese parts have significantly larger noise corner 
frenquency (~2KHz) compared to the HK parts (<500Hz). Therefore, the 
Cninese parts have about twice the noise of the HK parts, @1KHz. Devices 
in both batches have essentially the same average Idss of about 16mA.
======

I never got 2Ap parts, only 2Aw, have tried several sources.
Mine were closely centered around Idss=12 mA, 16 pcs. at 44mA total
deliver 10 dB below 1nV/rtHz (60 Ohm thermal) or abt 320 pV/rtHz.
I found a 1/f corner at 1.5 KHz which fits the cited text.

This is the test board: 16*BF862 or 2* IF3602 duals, Zetex cascode,
AD4898s for 80 dB from 0.1 Hz to 1MHz. Feedback to 0.25 Ohm source R,
neg. bias via 100 Meg to gate.

< https://www.flickr.com/photos/137684711@N07/ > , somewhere near
the top. I have bad cell phone reception at the moment and cannot
load the flickr page in finite time.

regards, Gerhard

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#434412 — Re: OT: Qualcomm to send NXP to the chop shop

On 11/09/2016 03:27 AM, Gerhard Hoffmann wrote:
> Am 08.11.2016 um 21:22 schrieb Robert Latest:
>> Phil Hobbs wrote:
>>> Hmm, they don't list JFETs anywhere there.
>>
>> That's right, and I don't understand it. I know NXP sells the great
>> BF862,
>> but I don't know where it's made (not in one of their two discrete fabs),
>> it's not in their selection guides, you won't find it under
>> "Applications"
>> nor under "Products" on the website. The website only admits to its
>> existence if you directly enter the type number in the search box.
> 
> I have stored that from diyaudio.com:
> 
> ======
> Thread Home > Forums > Design & Build > Parts  NXP BF862 warning
> 
> I got two batches (100 pcs. each) of BF862 low noise n-channel jfets,
> from two different providers (DigiKey Corp. | Electronic Components
> Distributor | United Kingdom Home Page and Mouser Electronics -
> Electronic Components Distributor). Both are 100% genuine NXP parts, the
> only difference being the origin. One batch is marked 2Aw (w stands for
> China) and the other 2Ap (p stands for Hong Kong).
> 
> While they both have the noise floor @100KHz as per the datasheet
> (~0.8nV/rtHz), the Chinese parts have significantly larger noise corner
> frenquency (~2KHz) compared to the HK parts (<500Hz). Therefore, the
> Cninese parts have about twice the noise of the HK parts, @1KHz. Devices
> in both batches have essentially the same average Idss of about 16mA.
> ======
> 
> I never got 2Ap parts, only 2Aw, have tried several sources.
> Mine were closely centered around Idss=12 mA, 16 pcs. at 44mA total
> deliver 10 dB below 1nV/rtHz (60 Ohm thermal) or abt 320 pV/rtHz.
> I found a 1/f corner at 1.5 KHz which fits the cited text.
> 
> This is the test board: 16*BF862 or 2* IF3602 duals, Zetex cascode,
> AD4898s for 80 dB from 0.1 Hz to 1MHz. Feedback to 0.25 Ohm source R,
> neg. bias via 100 Meg to gate.
> 
> < https://www.flickr.com/photos/137684711@N07/ > , somewhere near
> the top. I have bad cell phone reception at the moment and cannot
> load the flickr page in finite time.
> 
> regards, Gerhard
> 
> 
> 
> 

Interesting, thanks.  I'm normally using them in TIAs and bootstraps
where the 1/f noise doesn't bother me much.

Cheers

Phil Hobbs

-- 
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net

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#434414 — Re: OT: Qualcomm to send NXP to the chop shop

On 11/09/2016 03:27 AM, Gerhard Hoffmann wrote:
> Am 08.11.2016 um 21:22 schrieb Robert Latest:
>> Phil Hobbs wrote:
>>> Hmm, they don't list JFETs anywhere there.
>>
>> That's right, and I don't understand it. I know NXP sells the great
>> BF862,
>> but I don't know where it's made (not in one of their two discrete fabs),
>> it's not in their selection guides, you won't find it under
>> "Applications"
>> nor under "Products" on the website. The website only admits to its
>> existence if you directly enter the type number in the search box.
> 
> I have stored that from diyaudio.com:
> 
> ======
> Thread Home > Forums > Design & Build > Parts  NXP BF862 warning
> 
> I got two batches (100 pcs. each) of BF862 low noise n-channel jfets,
> from two different providers (DigiKey Corp. | Electronic Components
> Distributor | United Kingdom Home Page and Mouser Electronics -
> Electronic Components Distributor). Both are 100% genuine NXP parts, the
> only difference being the origin. One batch is marked 2Aw (w stands for
> China) and the other 2Ap (p stands for Hong Kong).
> 
> While they both have the noise floor @100KHz as per the datasheet
> (~0.8nV/rtHz), the Chinese parts have significantly larger noise corner
> frenquency (~2KHz) compared to the HK parts (<500Hz). Therefore, the
> Cninese parts have about twice the noise of the HK parts, @1KHz. Devices
> in both batches have essentially the same average Idss of about 16mA.
> ======
> 
> I never got 2Ap parts, only 2Aw, have tried several sources.
> Mine were closely centered around Idss=12 mA, 16 pcs. at 44mA total
> deliver 10 dB below 1nV/rtHz (60 Ohm thermal) or abt 320 pV/rtHz.
> I found a 1/f corner at 1.5 KHz which fits the cited text.
> 
> This is the test board: 16*BF862 or 2* IF3602 duals, Zetex cascode,
> AD4898s for 80 dB from 0.1 Hz to 1MHz. Feedback to 0.25 Ohm source R,
> neg. bias via 100 Meg to gate.
> 
> < https://www.flickr.com/photos/137684711@N07/ > , somewhere near
> the top. I have bad cell phone reception at the moment and cannot
> load the flickr page in finite time.
> 
> regards, Gerhard
> 
> 
> 
> 
Fun, thanks.

Cheers

Phil Hobbs

-- 
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net

[toc] | [prev] | [next] | [standalone]

#434480 — Re: OT: Qualcomm to send NXP to the chop shop

Gerhard Hoffmann wrote:

> I got two batches (100 pcs. each) of BF862 low noise n-channel jfets, 
> from two different providers (DigiKey Corp. | Electronic Components 
> Distributor | United Kingdom Home Page and Mouser Electronics - 
> Electronic Components Distributor). Both are 100% genuine NXP parts, the 
> only difference being the origin. One batch is marked 2Aw (w stands for 
> China) and the other 2Ap (p stands for Hong Kong).
>
> While they both have the noise floor @100KHz as per the datasheet 
> (~0.8nV/rtHz), the Chinese parts have significantly larger noise corner 
> frenquency (~2KHz) compared to the HK parts (<500Hz). Therefore, the 
> Cninese parts have about twice the noise of the HK parts, @1KHz. Devices 
> in both batches have essentially the same average Idss of about 16mA.

Note that the "Made in..." only says where the final assembly step was done
(i.e., where die was moulded in the package), not where the die was made.
Otherwise almost all NXP small-signal diodes and BJTs would be "made in
Germany." It's very possble that your parts came from different batches from
the same waferfab, and some happened to be assembled in HK and the others in
mainland China.

-- 
robert

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#434481 — Re: OT: Qualcomm to send NXP to the chop shop

On 09/11/2016 08:27, Gerhard Hoffmann wrote:
> Am 08.11.2016 um 21:22 schrieb Robert Latest:
>> Phil Hobbs wrote:
>>> Hmm, they don't list JFETs anywhere there.
>>
>> That's right, and I don't understand it. I know NXP sells the great
>> BF862,
>> but I don't know where it's made (not in one of their two discrete fabs),
>> it's not in their selection guides, you won't find it under
>> "Applications"
>> nor under "Products" on the website. The website only admits to its
>> existence if you directly enter the type number in the search box.
>
> I have stored that from diyaudio.com:
>
> ======
> Thread Home > Forums > Design & Build > Parts  NXP BF862 warning
>
> I got two batches (100 pcs. each) of BF862 low noise n-channel jfets,
> from two different providers (DigiKey Corp. | Electronic Components
> Distributor | United Kingdom Home Page and Mouser Electronics -
> Electronic Components Distributor). Both are 100% genuine NXP parts, the
> only difference being the origin. One batch is marked 2Aw (w stands for
> China) and the other 2Ap (p stands for Hong Kong).
>
> While they both have the noise floor @100KHz as per the datasheet
> (~0.8nV/rtHz), the Chinese parts have significantly larger noise corner
> frenquency (~2KHz) compared to the HK parts (<500Hz). Therefore, the
> Cninese parts have about twice the noise of the HK parts, @1KHz. Devices
> in both batches have essentially the same average Idss of about 16mA.
> ======
>
> I never got 2Ap parts, only 2Aw, have tried several sources.
> Mine were closely centered around Idss=12 mA, 16 pcs. at 44mA total
> deliver 10 dB below 1nV/rtHz (60 Ohm thermal) or abt 320 pV/rtHz.
> I found a 1/f corner at 1.5 KHz which fits the cited text.
>
> This is the test board: 16*BF862 or 2* IF3602 duals, Zetex cascode,
> AD4898s for 80 dB from 0.1 Hz to 1MHz. Feedback to 0.25 Ohm source R,
> neg. bias via 100 Meg to gate.
>
> < https://www.flickr.com/photos/137684711@N07/ > , somewhere near
> the top. I have bad cell phone reception at the moment and cannot
> load the flickr page in finite time.
>
> regards, Gerhard
>
>
>
>

You've some nice pictures of a trip to the west and north of Scotland 
there - I hope you enjoyed it (many tourists don't venture further north 
than Edinburgh).

Which did you enjoy most between the Ring of Brodgar and Stonehenge? 
There's been some very interesting archaeological finds in Orkney in the 
past few years.

I see you visited Mull - did you have time to go to the outer Hebrides?

Here's a video of Karine Polwart in the Italian Chapel 
https://vimeo.com/73406037

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#434760 — Re: OT: Qualcomm to send NXP to the chop shop

Am 09.11.2016 um 20:48 schrieb JM:

> You've some nice pictures of a trip to the west and north of Scotland
> there - I hope you enjoyed it (many tourists don't venture further north
> than Edinburgh).

We took the ferry to Dover, visited some friends
in Peterborough < http://ulyssesclubgb.org > and
quite a few of them joined us for the north.
We repeated that in Wales this summer.

> Which did you enjoy most between the Ring of Brodgar and Stonehenge?

Brodgar.

OMG. Stonehenge was pure chaos. One day before solstice, there was a
flood of neo-pagans etc. The parking space is now 3 Km from the henge,
with jam already on the road that passes Stonehenge. Then there was
a queue of pedestrians for all of the 3 Km and back. We gave up.
The Stonehenge photos have all been done blindly from the moving
motorbike in the stop & go from the road that passes by.

> There's been some very interesting archaeological finds in Orkney in the
> past few years.

Yes, I did inspect some flats in Scara Brae that are vacant since 5000
years :-) and some other places.
Orkney was great.

> I see you visited Mull - did you have time to go to the outer Hebrides?

No, maybe next year, and also to Skye.

regards, Gerhard

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#434818 — Re: OT: Qualcomm to send NXP to the chop shop

On 10/11/16 23:09, Gerhard Hoffmann wrote:
> Am 09.11.2016 um 20:48 schrieb JM:
>
>> You've some nice pictures of a trip to the west and north of Scotland
>> there - I hope you enjoyed it (many tourists don't venture further north
>> than Edinburgh).
>
> We took the ferry to Dover, visited some friends
> in Peterborough < http://ulyssesclubgb.org > and
> quite a few of them joined us for the north.
> We repeated that in Wales this summer.
>
>> Which did you enjoy most between the Ring of Brodgar and Stonehenge?
>
> Brodgar.
>
> OMG. Stonehenge was pure chaos. One day before solstice, there was a
> flood of neo-pagans etc. The parking space is now 3 Km from the henge,
> with jam already on the road that passes Stonehenge. Then there was
> a queue of pedestrians for all of the 3 Km and back. We gave up.
> The Stonehenge photos have all been done blindly from the moving
> motorbike in the stop & go from the road that passes by.

Stonehenge is terrible now: "look don't touch, please
keep moving", which is a great shame. When I was a
kid people clambered all over the stones
and ate their picnics on them.

Fortunately there are many other stone circles and
barrows where you can still do that. Near Stonehenge
there is Avebury (Europe's largest neolithic stone
circle), West Kennet Long Barrow, and Silbury Hill
(the largest man-made mound in Europe).


>> I see you visited Mull - did you have time to go to the outer Hebrides?
>
> No, maybe next year, and also to Skye.

If you are up there, consider looking in and around
Kilmartin.

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#435411 — Re: OT: Qualcomm to send NXP to the chop shop

On 11/11/2016 09:35, Tom Gardner wrote:

>>
>> OMG. Stonehenge was pure chaos. One day before solstice, there was a
>> flood of neo-pagans etc. The parking space is now 3 Km from the henge,
>> with jam already on the road that passes Stonehenge. Then there was
>> a queue of pedestrians for all of the 3 Km and back. We gave up.
>> The Stonehenge photos have all been done blindly from the moving
>> motorbike in the stop & go from the road that passes by.
>
> Stonehenge is terrible now: "look don't touch, please
> keep moving", which is a great shame. When I was a
> kid people clambered all over the stones
> and ate their picnics on them.
>

Being familiar with the circles in Scotland I was a bit dissapointed 
when I visited Stonehenge, given it's the most famous circle in the UK. 
  It's so small compared to some others I couldn't help but think of the 
stage prop in the film Spinal Tap.

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#434185

Robert Latest wrote...
>
> The new Chinese-owned company is going to be named
> "Nexperia" (how boring), and these are the products
> that are going to transition from NXP to Nexperia:
>http://www.nxp.com/products/discretes-and-logic:DISCRETES-AND-LOGIC

 What, only discretes and logic?  That amounted
 to 25% of the employees and 20% of the revenue,
 (see press release), of the business?


-- 
 Thanks,
    - Win

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#434275

Winfield Hill wrote:
> Robert Latest wrote...
>>
>> The new Chinese-owned company is going to be named
>> "Nexperia" (how boring), and these are the products
>> that are going to transition from NXP to Nexperia:
>>http://www.nxp.com/products/discretes-and-logic:DISCRETES-AND-LOGIC
>
>  What, only discretes and logic?  That amounted
>  to 25% of the employees and 20% of the revenue,
>  (see press release), of the business?

Yup, it's huge. The Hamburg, Germany fab is supposedly the biggest waferfab
for discretes in the world. Add to that the labor-intensive packaging fabs
in Asia, where most of the value is generated and most employees work,
it becomes plausible.

robert

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#432917 — Re: OT: Qualcomm to send NXP to the chop shop

On 10/29/2016 01:14 PM, Robert Latest wrote:
> Jim Thompson wrote:
>> From SemiWiki.com:
>>
>> "Qualcomm Reportedly Seals Deal To Buy NXP Semiconductors
>>
>> My guess is that QCOM will chop up NXP and part it out. The fabs can
>> go to TI or ON Semi etc.... The NXP employee LinkedIn profiles are
>> already being updated and shopped around, absolutely."  -Daniel Nenni
>> 		
>>                                         ...Jim Thompson
>
> NXPs entire business unit "Standard Products" with its discrete waferfabs
> (Hamburg, Manchester) as well as the Asian assembly centers will be carved
> out into a new discrete semi company called "Nexperia", 100% owned by
> Chinese investors. Nijmegen will be the only remining fab of NXP.  This will
> happen before the NXP/Qualcomm merger, so Nijmegen will be the only fab
> inherited by Qualcomm.
>
> robert
>

Bummer.  Just ordered another couple of reels of BF862s for insurance. :(

Cheers

Phil Hobbs

-- 
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net

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