color:#333333; font:x-small Georgia Serif; font-size/* */:/**/small; font-size: /**/small; text-align: center; } a:link { color:#5588aa; text-decoration:none; } a:visited { color:#999999; text-decoration:none; } a:hover { color:#cc6600; text-decoration:underline; } a img { border-width:0; } /* Header ----------------------------------------------- */ #header-wrapper { width:660px; margin:0 auto 10px; border:1px solid #cccccc; } #header-inner { background-position: center; margin-left: auto; margin-right: auto; } #header { margin: 5px; border: 1px solid #cccccc; text-align: center; color:#666666; } #header h1 { margin:5px 5px 0; padding:15px 20px .25em; line-height:1.2em; text-transform:uppercase; letter-spacing:.2em; font: normal normal 200% Georgia, Serif; } #header a { color:#666666; text-decoration:none; } #header a:hover { color:#666666; } #header .description { margin:0 5px 5px; padding:0 20px 15px; max-width:700px; text-transform:uppercase; letter-spacing:.2em; line-height: 1.4em; font: normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif; color: #999999; } #header img { margin-left: auto; margin-right: auto; } /* Outer-Wrapper ----------------------------------------------- */ #outer-wrapper { width: 660px; margin:0 auto; padding:10px; text-align:left; font: normal normal 100% Georgia, Serif; } #main-wrapper { width: 410px; float: left; word-wrap: break-word; /* fix for long text breaking sidebar float in IE */ overflow: hidden; /* fix for long non-text content breaking IE sidebar float */ } #sidebar-wrapper { width: 220px; float: right; word-wrap: break-word; /* fix for long text breaking sidebar float in IE */ overflow: hidden; /* fix for long non-text content breaking IE sidebar float */ } /* Headings ----------------------------------------------- */ h2 { margin:1.5em 0 .75em; font:normal normal 78% 'Trebuchet MS',Trebuchet,Arial,Verdana,Sans-serif; line-height: 1.4em; text-transform:uppercase; letter-spacing:.2em; color:#999999; } /* Posts ----------------------------------------------- */ h2.date-header { margin:1.5em 0 .5em; } .post { margin:.5em 0 1.5em; border-bottom:1px dotted #cccccc; padding-bottom:1.5em; } .post h3 { margin:.25em 0 0; padding:0 0 4px; font-size:140%; font-weight:normal; line-height:1.4em; color:#cc6600; } .post h3 a, .post h3 a:visited, .post h3 strong { display:block; text-decoration:none; color:#cc6600; font-weight:normal; } .post h3 strong, .post h3 a:hover { color:#333333; } .post p { margin:0 0 .75em; line-height:1.6em; } .post-footer { margin: .75em 0; color:#999999; text-transform:uppercase; letter-spacing:.1em; font: normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif; line-height: 1.4em; } .comment-link { margin-left:.6em; } .post img { padding:4px; border:1px solid #cccccc; } .post blockquote { margin:1em 20px; } .post blockquote p { margin:.75em 0; } /* Comments ----------------------------------------------- */ #comments h4 { margin:1em 0; font-weight: bold; line-height: 1.4em; text-transform:uppercase; letter-spacing:.2em; color: #999999; } #comments-block { margin:1em 0 1.5em; line-height:1.6em; } #comments-block .comment-author { margin:.5em 0; } #comments-block .comment-body { margin:.25em 0 0; } #comments-block .comment-footer { margin:-.25em 0 2em; line-height: 1.4em; text-transform:uppercase; letter-spacing:.1em; } #comments-block .comment-body p { margin:0 0 .75em; } .deleted-comment { font-style:italic; color:gray; } #blog-pager-newer-link { float: left; } #blog-pager-older-link { float: right; } #blog-pager { text-align: center; } .feed-links { clear: both; line-height: 2.5em; } /* Sidebar Content ----------------------------------------------- */ .sidebar { color: #666666; line-height: 1.5em; } .sidebar ul { list-style:none; margin:0 0 0; padding:0 0 0; } .sidebar li { margin:0; padding-top:0; padding-right:0; padding-bottom:.25em; padding-left:15px; text-indent:-15px; line-height:1.5em; } .sidebar .widget, .main .widget { border-bottom:1px dotted #cccccc; margin:0 0 1.5em; padding:0 0 1.5em; } .main .Blog { border-bottom-width: 0; } /* Profile ----------------------------------------------- */ .profile-img { float: left; margin-top: 0; margin-right: 5px; margin-bottom: 5px; margin-left: 0; padding: 4px; border: 1px solid #cccccc; } .profile-data { margin:0; text-transform:uppercase; letter-spacing:.1em; font: normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif; color: #999999; font-weight: bold; line-height: 1.6em; } .profile-datablock { margin:.5em 0 .5em; } .profile-textblock { margin: 0.5em 0; line-height: 1.6em; } .profile-link { font: normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif; text-transform: uppercase; letter-spacing: .1em; } /* Footer ----------------------------------------------- */ #footer { width:660px; clear:both; margin:0 auto; padding-top:15px; line-height: 1.6em; text-transform:uppercase; letter-spacing:.1em; text-align: center; } /** Page structure tweaks for layout editor wireframe */ body#layout #header { margin-left: 0px; margin-right: 0px; } -->

Sunday, January 20, 2008

FC-PGA Package Type

The FC-PGA package is short for flip chip pin grid array, which have pins that are inserted into a socket. These chips are turned upside down so that the die or the part of the processor that makes up the computer chip is exposed on the top of the processor. By having the die exposed allows the thermal solution can be applied directly to the die, which allows for more efficient cooling of the chip. To enhance the performance of the package by decoupling the power and ground signals, FC-PGA processors have discrete capacitors and resistors on the bottom of the processor, in the capacitor placement area (center of processor). The pins on the bottom of the chip are staggered. In addition, the pins are arranged in a way that the processor can only be inserted one way into the socket. The FC-PGA package is used in Pentium® III and Intel® Celeron® processors, which use 370 pins.Pentium III and Intel® Celeron®

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