High Quality Machining Screw Taps for Machining Machinery Specifications 1. machine taps 2. Steady quality&competitive price 3. Type:M,UNC,UNF,W 4. quick delivery time High quality OEM Machine tap Main Products: Inserts, Cutting Tools, Milling
High Quality Cutter Supply HSS Screw Tap for Milling Machinery Specifications 1. machine taps 2. Steady quality&competitive price 3. Type:M,UNC,UNF,W 4. quick delivery time Main Products: Inserts, Cutting Tools, Milling Cutters, Solid Carbide C
Electronics Forum | Wed Apr 06 11:10:47 EDT 2005 | smt_rookie
We process a double-side reflow board (10 ups). Chips and IC's on the bottom side while chips, IC's plus thru-hole connectors and IC sockets on top side (bottom side first then top side reflow). In the past, we were not encountering any soldering pro
Electronics Forum | Wed May 27 21:05:30 EDT 1998 | Steve Gregory
Hey yooze guys! Enough of the jokes between you and Earl (GRIN), let's get back to the topic...well, okay... you can tell a few more...(but good ones, 'kay?) Anyhoo...I'm not sure if ya'll are on the IPC Technet list or not, I've not seen any posts f
Industry News | 2013-06-26 09:09:19.0
The SMTA announced Harald Grumm from Christian Koenen GmbH as the recipient of the Best of Conference Award for his presentation “The Potential of Stencil Technology – Choosing the Right Stencil Options to Maximize Yield and Earnings” at the 9th Annual International Conference on Soldering and Reliability, held May 14-17, 2013 at the Sheraton Toronto Airport, Ontario, Canada.
Industry News | 2009-04-23 20:54:01.0
MINNEAPOLIS, MN � The SMTA is pleased to announce its latest technical event in Penang, Malaysia. The SMTA South East Asia Technical Conference on Electronics Assembly Technologies will be held November 19-20, 2009 at the Equatorial Hotel in Penang, Malaysia. Presentations are currently being solicited for the following key technology tracks:
Technical Library | 2013-01-17 15:37:21.0
A problem exists with electroless nickel / immersion gold (ENIG) surface finish on some pads, on some boards, that causes the solder joint to separate from the nickel surface, causing an open. The solder has wet and dissolved the gold. A weak tin to nickel intermetallic bond initially occurs, but the intermetallic bond cracks and separates when put under stress. Since the electroless nickel / immersion gold finish performs satisfactory in most applications, there had to be some area within the current chemistry process window that was satisfactory. The problem has been described as a 'BGA Black Pad Problem' or by HP as an 'Interfacial Fracture of BGA Packages…'[1]. A 24 variable experiment using three different chemistries was conducted during the ITRI (Interconnect Technology Research Institute) ENIG Project, Round 1, to investigate what process parameters of the chemical matrix were potentially satisfactory to use and which process parameters of the chemical matrix need to be avoided. The ITRI ENIG Project has completed Round 1 of testing and is now in the process of Round 2 TV (Test Vehicle) build.
Events Calendar | Mon Apr 23 00:00:00 EDT 2018 - Thu Apr 26 00:00:00 EDT 2018 | Shanghai, China
SMTA China East Conference 2018
Connector Models - Are They Any Good? Connector Models - Are They Any Good? by: Jim Nadolny, Leon Wu; Samtec, Inc. Channel simulations are only as accurate as the models used to develop them. While we have seen much effort placed on printed
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/leadfree.pdf
– Joints Look Ugly but are fine • Bismuth – Reduces melting point but joints can be brittle depending on formulation • Antimony – – Gives better stability at low temperatures when used with tin
ORION Industries | http://orionindustries.com/pdfs/X300-series.pdf
: White Insulating Layer Finish: Matte or Polish Standard Roll Widths: up to 48” wide Standard Gauges (insulating layer): 0.005”, 0.010”, 0.015”, 0.020”, 0.030” Available Foils: Aluminum, Copper, Tin Plated Copper
COT specializes in high quality SMT nozzles and consumables for pick and place machines. We provide special engineering design service of custom nozzles for those unique and odd components.
2481 Hilton Drive
Gainesville, GA USA
Phone: (770) 538-0411
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