Electronics Forum | Thu Mar 01 22:21:06 EST 2007 | davef
From our notes ... An intense evaluation was completed in 1992 that involved testing of three board types [6 layer FR4, 6 layer ceramic copper thick film, and a 4 layer copper-invar-copper board] by the Navy Surface Warfare Center, Crane, IN. [Obvio
Electronics Forum | Sat Dec 16 10:03:32 EST 2000 | Dave F
Castellation. A recessed metalized feature on the edge of a leadless chip carrier [LCC] that is used to interconnect conducting surface or planes within or on the chip carrier. If you search the fine SMTnet Archives, you find: * A fine thread [cast
Electronics Forum | Thu Sep 16 12:06:29 EDT 1999 | Scott S. Snider
| | | Hi, | | | | | | Can someone pls suggest to me the best reflow temperature setting | | | for a force air convection oven. The details is as follow. | | | 1) Heller 1700s | | | 2) 12 zone---6 top and 6 bot | | | 3) Solder paste --- Qualitek 691
Electronics Forum | Wed Feb 25 08:34:00 EST 1998 | Earl Moon
CERAMIC CIRCUITRY Starting with hybrid thick film circuits in 1965 at Sperry Flight Systems, I have been involved with ceramics (usually aluminum oxide) as the substrate material. Then, we developed "multilayer" circuitry (replacing "cordwood" module
Electronics Forum | Wed Feb 25 08:30:44 EST 1998 | Earl Moon
| Happy Holidays All, | I am searching out a vendor (US preferred) who can fabricate a ceramic PCb with etremely fine lines. | Please reply if you are a vendor, or know of one. | Thanks, | Wendy CERAMIC CIRCUITRY Starting with hybrid thick film circ
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