Industry Directory | Manufacturer's Representative
Specialty materials for SMT Assembly. Solder Paste, Spheres, Tac Fluxes, Flip Chip Fluxes, Solder wi
Electronics Forum | Fri May 17 22:25:51 EDT 2002 | xzinxzin
*the other components are 0402 and SOIC 16, the solderability were good. *the protection on the terminations of microleadframe package is Cu(copper),somebody call that leadless leadframe package(LLP). *the time above 210 deg C is about 10 sec. *I us
Electronics Forum | Tue May 21 06:33:37 EDT 2002 | hayashi
*the other components are 0402 and SOIC 16, the > solderability were good. *the protection on the > terminations of microleadframe package is > Cu(copper),somebody call that leadless leadframe > package(LLP). *the time above 210 deg C is about
Used SMT Equipment | Semiconductor & Solar
Standard Machine features and system description: Ultra-fine pitch and small ball bonding capabilities High frequency transducer operating at 138 kHz Applicable wire size of 0.6mil-2.0mil High speed XY table with linear motor technology High ac
Industry News | 2013-04-13 00:16:30.0
Hesse Mechatronics has appointed Michael McKeown as Senior Business Development Manager. Michael will be in charge of strengthening Hesse Mechatronics’ position in the power electronics market.
Technical Library | 2018-05-23 12:12:43.0
Driven by miniaturization, cost reduction and tighter requirements for electrical and thermal performance, the use of lead-frame based bottom-termination components (LF-BTC) as small-outline no-leads (SON), quad-flat no leads (QFN) packages etc., is increasing. However, a major distractor for the use of such packages in high-reliability applications has been the lack of a visible solder (toe) fillet on the edge surface of the pins: because the post-package assembly singulation process typically leaves bare copper leadframe at the singulation edge, which is not protected against oxidation and thus does not easily solder-wet, a solder fillet (toe fillet) does not generally develop.
Technical Library | 2017-08-31 13:43:48.0
Wire bonded packages using conventional copper leadframe have been used in industry for quite some time. The growth of portable and wireless products is driving the miniaturization of packages resulting in the development of many types of thin form factor packages and cost effective assembly processes. Proper optimization of wire bond parameters and machine settings are essential for good yields. Wire bond process can generate a variety of defects such as lifted bond, cracked metallization, poor intermetallic etc. NSOP – non-stick on pad is a defect in wire bonding which can affect front end assembly yields. In this condition, the imprint of the bond is left on the bond pad without the wire being attached. NSOP failures are costly as the entire device is rejected if there is one such failure on any bond pad. The paper presents some of the failure modes observed and the efforts to address NSOP reduction
Water-based, alkaline defluxing for semiconductor electronics HYDRON® SE 230A is a water-based, single-phase cleaning agent specifically developed for the use in dip tank processes. It removes flux residues from a wide range of semiconductor electro
SMTnet Express, August 31, 2017, Subscribers: 30,770, Companies: 10,706, Users: 23,739 NSOP Reduction for QFN RFIC Packages Mumtaz Y. Bora; Peregrine Semiconductor Wire bonded packages using conventional copper leadframe have been used in industry
| http://etasmt.com/cc?ID=te_news_industry,3561&url=_print
. Pb also acts as a solvent metal that facilitates the formation of intermetallic bonds between the joint constituents, e.g., Sn and Cu (from the leadframe of the device package
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/trimming-heels-under-the-component-body_topic12_post3020.html
. I am really looking forward to the new calculator! I need some help understanding what you said about Note 4. I just did a little research on leadframe materials and it looks like Alloy 42 is still used (true
