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border="0" onload=""></a></td> <td><a href="mailto:empf@aciusa.org" target="_top" onClick="MM_nbGroup('down','group1','contact','',1)" onMouseOver="MM_nbGroup('over','contact','../../nav/images/empfasis_nav_06-over.gif','',1)" onMouseOut="MM_nbGroup('out')"><img src="../../nav/images/empfasis_nav_06.gif" alt="" name="contact" width="74" height="34" border="0" onload=""></a></td> </tr> </table> <!-- #EndLibraryItem --></div> <table width="100%" border="0"> <tr> <td width="85%" class="style17">A publication of the National Electronics Manufacturing Center of Excellence</td> <!-- InstanceBeginEditable name="Date" --><td width="15%"><div align="right">September 2010 </div></td> <!-- InstanceEndEditable --> </tr> </table> <table width="100%" border="0"> <tr> <td width="237" valign="top"> <div align="center"> <table width="237" height="1280" border="0" cellpadding="30" cellspacing="0"> <tr> <td width="237" valign="top" background="../../archive/images/left_banner4.jpg"><div id="lft_banner"> <table width="185" border="0" cellspacing="0" cellpadding="0"> <tr> <td><a href="http://www.aciusa.org" target="_blank"><img src="http://www.empf.org/empfasis/archive/images/aci_sm.gif" alt="Go to the ACI website" width="69" height="44" border="0" align="left" longdesc="http://www.aciusa.org"></a></td> <td><a href="http://www.empf.org" target="_blank"><img src="http://www.empf.org/empfasis/archive/images/empf_sm.gif" alt="Go to the EMPF website" width="65" height="44" border="0" align="right" longdesc="http://www.empf.org"></a></td> </tr> <tr> <td colspan="2"><div align="center"> <table width="175" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td valign="top"><span class="style1"><span class="style24"><br> In This EMPFasis Issue<br> <br> </span></span></td> </tr> <tr> <td valign="top" style="padding-left:10px"><!-- InstanceBeginEditable name="Article_1" --> <p align="left"><a href="rfsemi.html">RF Semiconductor Devices</a></p> <!-- InstanceEndEditable --></td> </tr> <tr> <td valign="top">&nbsp;</td> </tr> <tr> <td valign="top"><div align="left"></div></td> </tr> <tr> <td valign="top" style="padding-left:10px"><!-- InstanceBeginEditable name="Article_2" --> <p align="left"><a href="help-910.html">Ask the EMPF Helpline!</a> <!-- InstanceEndEditable --> </p></td> </tr> <tr> <td valign="top"><p align="left">&nbsp;</p></td> </tr> <tr> <td valign="top" style="padding-left:10px"><!-- InstanceBeginEditable name="Article_3" --> <p align="left"><a href="packaging.html">The EMPF Power Packaging Laboratory</a></p> <!-- InstanceEndEditable --></td> </tr> <tr> <td valign="top"><p align="left">&nbsp;</p></td> </tr> <tr> <td valign="top" style="padding-left:10px"><!-- InstanceBeginEditable name="Article_4" --> <p align="left"><a href="tech-tips-910.html">Tech Tips: Sensor Drop Testing for Gun Launch</a></p> <!-- InstanceEndEditable --></td> </tr> <tr> <td valign="top"><p align="left">&nbsp;</p></td> </tr> <tr> <td valign="top" style="padding-left:10px"><!-- InstanceBeginEditable name="Article_5" --> <p align="left"><a href="manf-corner-910.html">Manufacturer&rsquo;s Corner: Dage</a></p> <!-- InstanceEndEditable --></td> </tr> <tr> <td valign="top"><p align="left">&nbsp;</p></td> </tr> <tr> <td valign="top" style="padding-left:10px"><!-- InstanceBeginEditable name="Article_6" --> <p align="left"><a href="bgatraining.html">BGA Application Training</a></p> <!-- InstanceEndEditable --></td> </tr> <tr> <td valign="top"><p align="left">&nbsp;</p></td> </tr> <tr> <td valign="top" style="padding-left:10px"><!-- InstanceBeginEditable name="Article_7" --> <a href="http://store.aciusa.org">EMTC Online Registration</a> <!-- InstanceEndEditable --></td> </tr> <tr> <td valign="top"><p align="left">&nbsp;</p></td> </tr> <tr> <td valign="top" style="padding-left:10px"><!-- InstanceBeginEditable name="Article_8" --> <a href="../html/empfasis/emlcupcoming.pdf">Training Center Course Schedule</a> <!-- InstanceEndEditable --></td> </tr> </table> <br> <br> <hr align="center" size="1"> <br> <a href="http://store.aciusa.org"><img src="http://www.aciusa.org/images/lower-pricing-ad.gif" alt="Discount pricing on IPC training course J-STD-001, 610, 600, 7711, 7712" width="150" height="288" border="1"></a> <a href="http://www.empf.org/empfasis/subscribe.htm"> </a> <p class="style9"><script language="JavaScript"> <!-- function random_imglink(){ var myimages=new Array() myimages[1]="http://www.aciusa.org/wwwaci/html/random/boot.gif" myimages[2]="http://www.aciusa.org/wwwaci/html/random/lead.gif" myimages[3]="http://www.aciusa.org/wwwaci/html/random/help.gif" myimages[4]="http://www.aciusa.org/wwwaci/html/random/service.gif" myimages[5]="http://www.empf.org/empfasis/archive/images/subscribe2.gif" var imagelinks=new Array() imagelinks[1]="http://www.aciusa.org/courses/train_boot.htm" imagelinks[2]="http://www.empf.org/empfasis/leadfree.htm" imagelinks[3]="http://www.empf.org/helpline/helpline.htm" imagelinks[4]="http://www.aciusa.org/ana/ana_home.htm" imagelinks[5]="http://www.empf.org/empfasis/subscribe.htm" var ry=Math.floor(Math.random()*myimages.length) if (ry==0) ry=1 document.write('<a href='+'"'+imagelinks[ry]+'"'+'><img src="'+myimages[ry]+'" border=0></a>') } random_imglink() //--> </script></p> </div></td> </tr> <tr> <td colspan="2"><div align="center"><span class="style5">ACI Technologies Inc.</span><br> One International Plaza<br> Suite 600 <br> Philadelphia, PA 19113 <br> (610) 362-1200 <br> <span class="style6">FAX: </span>(610) 362-1290<br> <span class="style6">HELPLINE: </span>(610) 362-1320<br> <span class="style6">WEBSITE: </span><a href="http://www.empf.org">www.empf.org</a><br> <a href="http://www.aciusa.org">www.aciusa.org</a></div></td> </tr> </table> <p>&nbsp;</p> <p><br> <br> </p> <div align="center"> <p align="center" class="style7">Michael D. Frederickson<br> <strong><em>EMPF Director </em></strong><br> <br> Barry Thaler, PhD.<br> bthaler@aciusa.org <br> <strong><em>Empfasis Technical Editor<br> </em></strong><br> Paul Bratt<br> pbratt@aciusa.org <br> <strong><em>Empfasis Editor</em></strong><br> </p> <p align="center" class="style7"><img src="http://www.empf.org/empfasis/archive/images/iab_sm.gif" alt="IAB" width="100" height="52"><br> <span class="style9">Industrial Advisory Board</span><br> <span class="style14"><em>Gerald R. Aschoff</em>, The Boeing Company<br> <em>Dennis M. Kox</em>, Raytheon<br> <em>Gregory X. Krieger</em>, BAE Systems<br> <em>Edward A. Morris</em>, Lockheed Martin<br> <em>Jane Krueger </em>, Rockwell Collins<br> <em>Gary Kirchner</em>, Honeywell<br> <em>Andrew Paradise</em>, Northrop Grumman<br> <em>Richard Kidwell </em>, ITT Industries</span></p> </div> <p align="center" class="style7"><br> </p> </div> </td> </tr> </table> </div></td> <!-- InstanceBeginEditable name="Body1" --><td width="70%" rowspan="2" valign="top"><div class="body_style" id="body_content"> <p><img src="images/manf.gif" alt="title"></p> <p class="body_text"><span class="style20">A</span> Dage digital X-ray system (Figure 5-1) can provide high quality inspection capability when no other method is practical or able to provide the necessary direct observation. When the critical points of inspection are the central balls of a ball grid array (BGA), the integrity of a solder joint, or a trace deep in a circuit board, modern high magnification and real-time X-ray inspection is often the only reliable method available to assure a clear assessment of the issue (Figure 5-2).</p> <p align="center"><img src="images/fig5-1.gif"></p> <p>An understanding of several key X-ray characteristics is needed before interpreting the images. These characteristics are feature recognition, live image capability, resolution, tube power, and penetrating power. Feature recognition is a human skill, but the images presented to the operator are the accumulation of all the technical capabilities of an X-ray machine. It is essential that the specific image is clear and unambiguous. The X-ray image is presented on the monitor with a full 16 bits of grayscale resolution. The value of this subtle shading is clear. For example, a solder joint failure may manifest itself as a thin line on the X-ray image. Recognizing that the fine line on a solder joint is a fracture is an operator skill, but the ability to see the fine line is due to the 100 nanometer feature recognition capability of the equipment and the grayscale resolution on the monitor.</p> <p>Live image capability is the ability to see real-time X-ray images. As the X-ray camera moves along the object being examined, the image captured is presented at 30 frames per second (fps) to the machine operator. This is a very useful feature when the specific position of the problem has not been identified and the suspect area must be searched.</p> <p>The high performance of the Dage machine is achieved with an innovatively designed sealed transmissive X-ray tube. This technology can provide up to 10 watts of power, adjustable in precise increments, to retain the sub-micron feature recognition that is critical for resolving small features and defects. The high power also provides greater visual penetration necessary for dense materials like a multilayer circuit board or the packaging material of a BGA.</p> <p>Well designed and intuitive software control allows the operator to achieve the correct blend of X-ray penetrating power with the highest possible resolution. The intuitive nature of the software lowers the operator learning time and the chances of errors. As a typical example, the height of an object being inspected can be programmed into the machine and a"no fly zone" created. This will prohibit the X-ray head from colliding with the sample.</p> <p>Circuit boards are usually flat and can be easily inspected in a parallel fashion above the surface of the board. But when the top view is not enough, the Dage inspection system is capable of providing up to 70 degrees of oblique views or 140 degrees of total view with no loss of resolution. These oblique or side angle inspections are preferred when examining under a component.</p> <p>To summarize, the Dage X-ray system can provide the high quality images necessary for manufacturing process inspection. The performance of entire systems can depend on the integrity of a solder joint, the position of a BGA, or the trace inside a circuit board. All these issues and more can be resolved by inspection with a Dage X-ray machine. For more information or a demonstration of this machine, please contact Mike Prestoy at mprestoy@aciusa.org.</p> <p class="body_text"><img src="../../archive/updated/mprestoy.gif"></p> </div> </td> <!-- InstanceEndEditable --> </tr> <tr> </tr> </table> <br> <table width="100%" border="0"> <tr> <td colspan="2"><div align="center"> <p><em>The EMPF is a U.S. Navy-sponsored National Electronics Manufacturing Center of Excellence focused on the development,<br> application, and transfer of new electronics manufacturing technology by partnering with industry,<br> academia, and government centers and laboratories in the U.S</em></p> </div></td> </tr> <tr> <td class="footer">ACI Technologies, Inc. - - <a href="http://www.aciusa.org">www.aciusa.org</a> - - (610)362-1200</td> <td><div align="right"><a href="http://www.navymantech.com"><img src="http://www.empf.org/empfasis/archive/images/mantech.gif" width="144" height="42" border="0"></a></div></td> </tr> </table> <div align="right"> <!-- Start of StatCounter Code --> <script type="text/javascript" language="javascript"> var sc_project=350643; var sc_partition=1; </script> <script type="text/javascript" language="javascript" src="http://www.statcounter.com/counter/counter.js"></script> <noscript> <a href="http://www.statcounter.com/free_hit_counter.html" target="_blank"><img src="http://c2.statcounter.com/counter.php?sc_project=350643&amp;amp;java=0" alt="hit counter" border="0"></a> </noscript> <a href="http://www.empf.org/sitemap.htm"><em>[site map] </em></a> <!-- End of StatCounter Code --> <!-- Start of StatCounter Code --> <script type="text/javascript" language="javascript"> var sc_project=1902214; var sc_invisible=1; var sc_partition=17; var sc_security="759b802c"; </script> <script type="text/javascript" language="javascript" src="http://www.statcounter.com/counter/counter.js"></script><noscript><a href="http://www.statcounter.com/" target="_blank"><img src="http://c18.statcounter.com/counter.php?sc_project=1902214&java=0&security=759b802c&invisible=1" alt="website statistics" border="0"></a> </noscript> <!-- End of StatCounter Code --> </div> </body> <!-- InstanceEnd --></html>