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Sales Manager: Sandy Lin Email: unity@mvme.cn Skype: onlywnn_1 Mobile(Whatsapp): (+86)-18020776786 XIAMEN YUEHANG COMPUTER ENGINEERING CO.LTD. is a company that professionally engaged in large system DCS spare parts supply. We supply DCS, PLC, M
Electronics Forum | Fri May 15 18:13:35 EDT 1998 | Earl Moon
| | | Does the temp. profiles used to reflow double sided pcb's through a IR oven | | on FR4 board material have to be re-established if it is changed to | | polyimide? Boards will be baked out prior to assembly. | | any response would be most appr
Electronics Forum | Mon Feb 15 15:33:47 EST 1999 | Earl Moon
| Any info on the pros and cons of FR4 or Polyamide ref the use of soldering PGAs would be helpful. ie. temp co-efficient diffs, baking, wave soldering, Convection reflow etc | I'm sure you know all the basic differences as Tg, X, Y, and Z expansi
