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Subject:
From:
"Howieson, Rick" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 18 Jul 2000 08:00:51 -0600
Content-Type:
text/plain
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text/plain (288 lines)
Another note on this subject. If you are requiring boards built to
IPC-6012 how are you confirming inspection to Table 4-3??? As with
MIL-PRF-55110 DSCC monitors this activity and with 6012 it is up to the
buyer to monitor. I wonder if buyers are aware of this requirement.
Thoughts?
Rick Howieson
GTC

>-----Original Message-----
>From:  Bogdan Gabi [SMTP:[log in to unmask]]
>Sent:  Tuesday, July 18, 2000 12:39 AM
>To:    [log in to unmask]
>Subject:       Re: [TN] Quality Control
>
>Hi, Mirka!
>Congratulations for your new job!
>This subject was discussed in previous postings in the TechNet, you can
>search the archives.
>If you want my personal opinion, as I stated before, testing should be done
>by the assembly manufacturer, but the level is dependent on the experience
>they have with their approved suppliers. We approve suppliers by board and
>technology, and perform skip lot after approval.This is in order to be sure
>that their performance is on a constant level. If there are changes in the
>master drawing, the circuit is considered as a new circuit.
>In my experience I witnessed sometimes drops in quality, when bigger
>companies swallowed smaller ones, and most of the people in the former
>engineering and quality control departments changed jobs. One of our ways to
>maintain the quality level is the constant cooperation with the
>manufacturer.
>Best regards, 
>Gaby
>
>> ----------
>> From:         Mirka Halas[SMTP:[log in to unmask]]
>> Reply To:     TechNet E-Mail Forum.;Mirka Halas
>> Sent:         ?ιεν ωπι 17 ιεμι 2000? 23:16
>> To:   [log in to unmask]
>> Subject:      [TN] Quality Control
>> 
>> Hello Technetters,
>>                   I changed jobs recently . In my previous position we
>> assembled all our boards at house. We received the finished boards from
>> board house and did
>> QA on all boards received, which sometimes uncovered problems.
>> In the new company the boards are ordered by the assembly house.
>> I questioned the assembly house about the QA of the boards, and it seems
>> like they just look
>> at the boards. I am not very happy with this situation...
>> According to the IPC specs the board house should inspect the boards,
>> but from my
>> previous job I know, that sometimes their inspection may not be
>> sufficient.
>> Could you let me know what is your experience and how do you handle
>> this situation.
>> 
>> Thanks a lot
>> Mirka
>> 
>> 
>> 
>> --
>> | Mirka Halas                            TSI TelSys Incorporated   |
>> | Senior PCB Designer                    7100 Columbia Gateway Dr. |
>> | [log in to unmask]                  Columbia, Maryland 21046  |
>> | http://www.tsi-telsys.com              (410) 872-3900: Main      |
>> | (410) 872-3922: Direct                 (410) 872-3901: FAX       |
>>  -=+=-*********************************************************-=+=-
>> 
>> ##############################################################
>> TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
>> ##############################################################
>> To subscribe/unsubscribe, send a message to [log in to unmask] with
>> following text in
>> the body:
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>> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
>> additional
>> information.
>> If you need assistance - contact Keach Sasamori at [log in to unmask] or
>> 847-509-9700 ext.5315
>> ##############################################################
>> 
><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
><HTML>
><HEAD>
><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-8">
><META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2650.12">
><TITLE>RE: [TN] Quality Control</TITLE>
></HEAD>
><BODY>
>
><P ALIGN=LEFT><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">Hi, Mirka!</FONT></P>
>
><P ALIGN=LEFT><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">Congratulations for
>your new job!</FONT></P>
>
><P ALIGN=LEFT><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">This subject was
>discussed in previous postings in the TechNet, you can search the
>archives.</FONT></P>
>
><P ALIGN=LEFT><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">If you want my
>personal opinion, as I stated before, testing should be done by the assembly
>manufacturer, but the level is dependent on the experience they have with
>their approved suppliers. We approve suppliers by board and technology, and
>perform skip lot after approval.This is in order to be sure that their
>performance is on a constant level. If there are changes in the master
>drawing, the circuit is considered as a new circuit.</FONT></P>
>
><P ALIGN=LEFT><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">In my experience I
>witnessed sometimes drops in quality, when bigger companies swallowed smaller
>ones, and most of the people in the former engineering and quality control
>departments changed jobs. One of our ways to maintain the quality level is
>the constant cooperation with the manufacturer.</FONT></P>
>
><P ALIGN=LEFT><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">Best regards,
></FONT></P>
>
><P ALIGN=LEFT><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">Gaby</FONT></P>
>
><P ALIGN=RIGHT><FONT SIZE=1 FACE="MS Sans Serif">----------</FONT></P>
>
><P ALIGN=RIGHT><B><FONT SIZE=1 FACE="MS Sans Serif">From</FONT></B><B><FONT
>SIZE=1 FACE="MS Sans Serif">:</FONT></B> &nbsp; <FONT SIZE=1 FACE="MS Sans
>Serif">Mirka Halas</FONT><FONT SIZE=1 FACE="MS Sans Serif">[</FONT><FONT
>SIZE=1 FACE="MS Sans Serif">SMTP:[log in to unmask]</FONT><FONT SIZE=1
>FACE="MS Sans Serif">]</FONT></P>
>
><P ALIGN=RIGHT><B><FONT SIZE=1 FACE="MS Sans Serif">Reply
>To</FONT></B><B><FONT SIZE=1 FACE="MS Sans Serif">:</FONT></B>
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=1 FACE="MS Sans Serif">TechNet
>E-Mail Forum.;Mirka Halas</FONT></P>
>
><P ALIGN=RIGHT><B><FONT SIZE=1 FACE="MS Sans Serif">Sent</FONT></B><B><FONT
>SIZE=1 FACE="MS Sans Serif">:</FONT></B> &nbsp; <FONT SIZE=1 FACE="MS Sans
>Serif">&#8207;ιεν ωπι 17 ιεμι 2000&#8207; 23:16</FONT></P>
>
><P ALIGN=RIGHT><B><FONT SIZE=1 FACE="MS Sans Serif">To</FONT></B><B><FONT
>SIZE=1 FACE="MS Sans Serif">:</FONT></B> &nbsp;&nbsp;&nbsp; <FONT SIZE=1
>FACE="MS Sans Serif">[log in to unmask]</FONT></P>
>
><P ALIGN=RIGHT><B><FONT SIZE=1 FACE="MS Sans
>Serif">Subject</FONT></B><B><FONT SIZE=1 FACE="MS Sans Serif">:</FONT></B>
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=1 FACE="MS Sans
>Serif">[</FONT><FONT SIZE=1 FACE="MS Sans Serif">TN] Quality
>Control</FONT></P>
><UL>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">Hello Technetters,</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2
>FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs
>p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I changed jobs recently . In my
>previous position we</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">assembled all our boards at house. We
>received the finished boards from</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">board house and did</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">QA on all boards received, which
>sometimes uncovered problems.</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">In the new company the boards are
>ordered by the assembly house.</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">I questioned the assembly house about
>the QA of the boards, and it seems</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">like they just look</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">at the boards. I am not very happy
>with this situation...</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">According to the IPC specs the board
>house should inspect the boards,</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">but from my</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">previous job I know, that sometimes
>their inspection may not be</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">sufficient.</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">Could you let me know what is your
>experience and how do you handle</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">this situation.</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">Thanks a lot</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">Mirka</FONT></P>
><BR>
><BR>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">--</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">| Mirka
>Halas&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp
>;&nbsp;&nbsp; TSI TelSys Incorporated&nbsp;&nbsp; |</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">| Senior PCB
>Designer&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb
>sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7100 Columbia Gateway Dr.
>|</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">|
>[log in to unmask]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n
>bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Columbia, Maryland 21046&nbsp;
>|</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">|</FONT><U> <FONT COLOR="#0000FF"
>SIZE=2 FACE="Arial"><A HREF="http://www.tsi-telsys.com"
>TARGET="_blank">http://www.tsi-telsys.com</A></FONT></U><FONT SIZE=2
>FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs
>p;&nbsp;&nbsp; (410) 872-3900: Main&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
>|</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">| (410) 872-3922:
>Direct&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp
>;&nbsp;&nbsp;&nbsp;&nbsp; (410) 872-3901:
>FAX&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2
>FACE="Arial">&nbsp;-=+=-*****************************************************
>****-=+=-</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2
>FACE="Arial">##############################################################</
>FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">TechNet Mail List provided as a free
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>
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>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">To subscribe/unsubscribe, send a
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>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">the body:</FONT></P>
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>
><P ALIGN=LEFT><FONT SIZE=2
>FACE="Arial">##############################################################</
>FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">Please visit IPC web site
>(</FONT><U><FONT COLOR="#0000FF" SIZE=2 FACE="Arial"><A
>HREF="http://www.ipc.org/html/forum.htm"
>TARGET="_blank">http://www.ipc.org/html/forum.htm</A></FONT></U><FONT SIZE=2
>FACE="Arial">) for additional</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">information.</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">If you need assistance - contact
>Keach Sasamori at [log in to unmask] or</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2 FACE="Arial">847-509-9700 ext.5315</FONT></P>
>
><P ALIGN=LEFT><FONT SIZE=2
>FACE="Arial">##############################################################</
>FONT></P>
></UL>
></BODY>
></HTML>

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847-509-9700 ext.5315
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