"Necessary" seems like a rather elastic word. Once upon a time it wasn't
"necessary" to have more than 64K of memory in a PC and are touch
screens on a mobile phone "necessary"?
Believe me, if we could use 01005 caps in the things I design (made by
the million for mobile phones) we'd be using them!
Just musing on a Friday afternoon....
On 18/11/2011 14:12, Phil Nutting wrote:
> It seems everything is always improved. Computers get faster, cars are more complicated, drugs are more powerful, etc. So it would follow that we need to keep reducing the size of components, just because we have the technology and not because it is necessary. So while I watch this thread it strikes me that the next "big thing" will be 0050025 to take us to next level of ridiculous.
>
> Just a Friday musing.
>
> Phil Nutting
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
> Sent: Friday, November 18, 2011 8:05 AM
> To: [log in to unmask]
> Subject: Re: [TN] Success using 01005 parts?
>
> It does, but in most cases is not needed.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Eric Christison
> Sent: Friday, November 18, 2011 3:38 AM
> To: [log in to unmask]
> Subject: Re: [TN] Success using 01005 parts?
>
> "There is no need for such a small size except perhaps in medical applications or certain phone or special communications equipment.."
>
> Which of course accounts for several hundred million PWB assys every year ;=)....
>
>
> Regards,
>
>
>
>
>
> On 17/11/2011 21:25, Stadem, Richard D. wrote:
>> Yes. There is no need for such a small size except perhaps in medical applications or certain phone or special communications equipment. (Implants, hearing aids, etc.). The other consideration is where an absolute minimum of heat can be tolerated.
>>
>> -----Original Message-----
>> From: [log in to unmask] [mailto:[log in to unmask]]
>> Sent: Thursday, November 17, 2011 3:13 PM
>> To: TechNet E-Mail Forum; Stadem, Richard D.
>> Subject: RE: [TN] Success using 01005 parts?
>>
>> Hi Mike,
>>
>> I always argued that 01005 parts did not actually save enough space to
>> make them worth using (and won). It is certainly true that they do not
>> save half the space even though they are thought of as half the size.
>>
>> -----Original Message-----
>> From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
>> Sent: Thursday, November 17, 2011 12:37 PM
>> To: [log in to unmask]
>> Subject: Re: [TN] Success using 01005 parts?
>>
>> What specific problem are you having? Wetting, tombstoning, placement
>> issues?
>>
>> -----Original Message-----
>> From: TechNet [mailto:[log in to unmask]] On Behalf Of Michael R. Floyd
>> Sent: Thursday, November 17, 2011 1:52 PM
>> To: [log in to unmask]
>> Subject: [TN] Success using 01005 parts?
>>
>> Hello All:
>>
>>
>>
>> Has anyone had any great success soldering 01005 parts? We have not.
>>
>>
>>
>> Our manufacturing department has had us lowly pcb layout guys try about
>> every pad configuration/footprint layout to try and come up with one
>> that works well, reliably. We have used part& stencil manufacturer's
>> recommendations etc...etc....etc.... Nothing has seemed to work very
>> well.
>>
>>
>>
>> If you have had success, do you mind sharing your secret?
>>
>> Please share your knowledge of:
>>
>> PCB Footprint (pad sizes, pitch, mask or no mask between pads etc...)
>>
>> Solder paste stencil opening size
>>
>> Type of solder paste
>>
>> Thickness of stencil
>>
>> Reflow parameters (time, temp etc...)
>>
>>
>>
>> Being that I am not a mfg. guy, I am sure that there may be a lot more
>> information that we need in order to be successful. I figured TechNet
>> would be as good a starting point as any for gathering the needed
>> information. The vast amount of knowledge, experience and comments that
>> are shared on this forum, never ceases to amaze me.
>>
>>
>>
>> Thank you in advance for your suggestions, comments and horror stories.
>>
>>
>>
>> Sincerely,
>>
>>
>>
>> Mike
>>
>>
>>
>>
>>
>> Michael Floyd
>>
>> CAD/CAM Engineer
>>
>>
>>
>> Office Address:
>>
>> 4393 Digital Way
>>
>> Mason, Ohio 45040
>>
>>
>>
>> Shipping Address:
>>
>> 4240 Irwin Simpson Rd
>>
>> Mason, Ohio 45040
>>
>>
>>
>> 513-204-7647 (Direct)
>>
>> 513-204-7600 (Main)
>>
>> 513-204-8999 (Main Fax)
>>
>> [log in to unmask]
>>
>> www.L-3Com.com/Nova<http://www.l-3com.com/Nova>
>>
>> Mon-Fri, 7:00 AM to 4:30 PM,
>>
>> alternating Friday's off
>>
>> (9/80 work system)
>>
>>
>>
>>
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> --
> Eric Christison
> Consumer& Micro group
> Imaging Division
>
> STMicroelectronics (R&D) Ltd
> 33 Pinkhill
> Edinburgh EH12 7BF
> United Kingdom
>
> Tel: +44 (0)131 336 6165
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--
Eric Christison
Consumer& Micro group
Imaging Division
STMicroelectronics (R&D) Ltd
33 Pinkhill
Edinburgh EH12 7BF
United Kingdom
Tel: +44 (0)131 336 6165
Fax: + 44 (0)131 336 6001
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