This is a multi-part message in MIME format. --------------1EB395D010796CE90159C9DC Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I've soldered a few of the Dallas iButtons DS2401X1 (CSP: chip scale package) parts to circuit boards and I have to tell you...this job is best left to machines. The parts are smaller than 0402 resistors! When prototyping, it's much easier to use larger packages such as an 8-pin TSOC or the TO-92 equivalents. Check out the photo. (if the list server will allow it to be attached.) Ron Dal Wheeler wrote: > A little different than BGA I think -- www.flipchip.com > They refer to it as wafer bumping. I'm surprised to hear some positives on > hand building experience though. Thats pretty wild. > > > Flipchip? You talking Ball Grid Array (BGA's) > > > > Dal Wheeler wrote: > > > > > Along these lines, has anyone here messed with Flipchip type mounting > (die > > > solder bumps)? Is it even possible at the hand-build level? Convection > > > oven trick? > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. --------------1EB395D010796CE90159C9DC Content-Type: image/jpeg; name="90-2401X-1SC.jpg" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="90-2401X-1SC.jpg" /9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAAIAAA/+4AIUFkb2JlAGTAAAAA AQMAEAMCAwYAAAJuAAADagAAB6b/2wCEAA8KCgoLCg8LCw8WDgwOFhoTDw8TGh0XFxcXFx0d FhkYGBkWHR0iIyUjIh0tLTExLS1AQEBAQEBAQEBAQEBAQEABEA4OEBIQFBERFBQQExAUGBQV FRQYIxgYGhgYIy4hHR0dHSEuKSwlJSUsKTIyLi4yMj8/PD8/QEBAQEBAQEBAQP/CABEIAD0A VwMBIgACEQEDEQH/xACoAAACAwEBAAAAAAAAAAAAAAACBAADBQEGAQADAQEBAAAAAAAAAAAA AAACAwQBAAUQAAIDAAICAwEBAQAAAAAAAAEDAAIEEQUSExAhIhQyBhEAAgEDAwIEBQIEBwAA AAAAAQIDERIEACExIhNBUWFxIDJCFAWRwRCBoWIwUnIjM0M0EgABBAAFAwQDAAAAAAAAAAAB ABEhAjFBUXGBECAioeESMmGx8f/aAAwDAQACEQMRAAAAyXVtGwFUvQIqLCH1XlXiUK6wFBe4 wUI9O113BuiPdzOtzln4OlegktQLPRQU7KlSdmZmZnpVBbiugohmrsec0ZC1l2F8w6mxrWvD lSLAt5mKLaIkeYy10docAJTYESYIwo1f/9oACAECAAEFANWi5ZTS4QbrcJaG0+HpqbHNYA1M xAhXxddbjwbQtoa2U6yyl9rH45l/HgqTK1qLfqf/2gAIAQMAAQUAXUcGlZ6/uw8T5CeQlSeP MTmO/wBfFGT8mCWr5S6wBzPuA2nleC9+LGxH1P/aAAgBAQABBQClK2unGpK9HXLpNee2J39G Yy+jOJQ0YDSGohrPGZqeTfdZMz7cWYNXjeVdDj06Ow7E9jvzLtz6uYMw4/ln8f3i03Qcjsth px0YhuXdhRsfuyf8mDZFusv7HVrweJwJwIx9VFHYpcyvYMWK6qa6905mrs+sexW1KVpwUPI+ deY2DEXWV6nLKN/nHMsrTl1pT2De7xPXoUatzZb6WgTiXUDHZBaOwmXz3qVaq3X12vWzWzq+ wX1qc9U4xStSytqTiGoMssGXSDGZQZXr68jP+2rQFmqMURTGjK5rXu4X5w8Q+MPhPxB4z6mf 2eH55Pt9dfd4f//aAAgBAgIGPwA1rY1rWPEs5zX3PM/tSK8D3XyGx6nW0rUJm/qc52LdZUed dFYsfjYuDvkh8TByyRBAL4T2eTcr7hnl7D0/O6LGpsXkMLDiZ1TRu8trhiv/2gAIAQMCBj8A ch3WHRu7julOI1jrgVgUfEvsVIsAMsjyvb0xX//aAAgBAQEGPwAKzCNSeqRgSqA7XNaCaaL5 6CFRJ9vM7Uc4uSoFO5TaSCSnupqoNd9O0lcZoW7WbATcMdztHMr7l4GOx+pfC86GNkf+ipV0 QEqGH1Bz0lGHFCSDUMBrZ9j9VDTfyNNbNfXboBbf30SnI5BFCPcH4QSAeTYWLiaMMEaI46Fb mDESC9qdPFK6RXVnjjx1SXgyTfjxvHNQBY42iXcbk3Fa6KZcqvNjxPHKIyzrk4xUBIu8tFLI XVK1Pn56kyM6hcEK8a7KD9EKqDsir4eWpVzmaPD/AB63/kbekMxFyY6W/LQfPb6Ac6Jxo1xc YmyCGMBAkY+UdP8AXUivu8VCrVBqp2Zf3+FmjuUijmSFQrqy3FWaVqDjYjxHtpXiiULC5KRp QRi4WvFJI/UwZV239NY4RlYLcFKAqojvvCLv4OWO9dPlFg0mNfOSCKLKTRW9l28PDw0n46UG F8ueWfJPLEIbVSTxud1/RRpCbSHHTvUH2OpFI3sND7eHw3OAyj6WFwHqFqBXQa9RIQR3JgHK hgQRHjxLaNyT6cjRVSwCisd4AYBhdwKjnUeLONsieFGPhYWDPX3Gmd3JmkYdC/ML2dwU/wBO 3JHprKw0jfK+8xzjWlb3kX5ldb60KUpQA/vr79x22yXXGxYilh7cAulf+7qot3jvXy1X4Dra op5a5qOD6+vvqPe2RWFf5bAjUM4lHyqwjKVKlNtiQa13r6GnsPyUeKkcmK3b/IiKIgCEVRsm Jf8AqIBUsKc7+elxopPt2yEjgxYXRTD9sp61EzC4SS3FqmnA34Oi8OO+PjsQqRyEFweCx3PR UEAjSwRC6YhyEVk6rBdYtWBD/wBpHr/HjXGthrjXZy47l47gUMw9q0ofbUc8MPeaJZCcd5KG cWsEHbShYf5gdiBSu+ovyEEkeXk5DkSwNDCysjO0bx0G79QWvbUEDjTZMmIRGssYMyO9+PKy 2PIIkcqxTkdO421LEoFDKrLI69tbaXmQK1EYKOoA/psNL4q6Exu5DyFWNxavHJoCRxx8HGth qrCo0khLlo7QbWCMyL9Aa0hduNtKWM/bxXY4qMA72OytdIylgKbkgU33BqdSDCjL4M6Ib41M bZTIaJJexpGsdTbZStN+dTRdcsNWXES+MxK1T/u9uW5gw5oq0NanQkyXJYqqhipoqKKKAq1N P31S49uvzW9VtebK/wBP8A/8329x7fd+S/6u34/r/LR4u8eK09dJf3O1v2r7rfCtl/hx6eWn su7N3XS2laDz6qccba//2Q== --------------1EB395D010796CE90159C9DC-- -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.