May, 2019
www.us-
tech.com
Page 27 SHENMAO Debuts New Pastes and Fluxes
San Jose, CA — SHENMAO has introduced sever- al new products, including its PQ10 series low- temperature solder paste, PW215 water-soluble solder paste, SMF-WC53 water-soluble, ball-at- tach flux and solder sphere, and water-based wave soldering flux and water-based cleaner. The PQ10 series low-temperature solder
paste is made with modified tin-bismuth alloy, which has a lower melting point range. In compar- ison with SnAgCu, PQ10 offers reduced peak re- flow temperature, energy consumption and warpage of PCBs and components. In comparison with the Sn42/Bi58 eutectic alloy, PQ10 series of- fers better ductility, finer microstructure and in- creased drop and thermal reliability. The P250 series is designed to reduce voids
and improve solderability, especially for automotive applications. With a wide process window, it is suit- able for complex PCB designs. Features include: zero halogens; excellent voiding per- formance; excellent solderability; head-on-pillow issue reduction; and improved insulation reliability. PF719 provides excellent ther-
mal fatigue reliability. The alloy of- fers a similar operating temperature window to typical SAC alloys. SHENMAO’s PW215 solder paste is a specially designed water-soluble, zero-halogen, lead-free solder paste. With its wide reflow window, it can fit easily into the process for compli- cated SMT or IC assembly substrate designs. Features include: consistent printing performance; low residue; low voiding; long stencil life; and ex- cellent testability. SMF-WC53 flux is a halogen-
free, water-soluble flux designed for use in ball-attach processes. It also works well in printing and transfer applications, and offers excellent solderability on all substrate sur-
Dow Intros Thermally Conductive Silicones
Midland, MI —Dow Performance Sil- icones has introduced two new ther- mally-conductive silicone technolo- gies: DOWSIL™ TC-3015 thermal gel and DOWSIL TC-5888 thermally conductive compound. TC-3015 is a one-part, heat cure, silicone based material with good reworkability. The material can be peeled off easily, completely, and without residue dur- ing the rework process. TC-5888 combines excellent
thermal management with a flow profile that enhances productivity. This thermally conductive material facilitates the design of slimmer, smaller devices that must deliver high performance and functionality. Dow Performance Silicones, a
business unit of The Dow Chemical Company, delivers a portfolio of per- formance-enhancing solutions to serve the diverse needs of customers and industries around the world. The business uses innovative silicon- based technology to provide solutions and ingredients to customers in com- mercial construction and high-per- formance building, consumer goods, silicone elastomers, and pressure-
sensitive industries. Contact: The Dow Chemical
Company, 2211 H.H. Dow Way, Midland, MI 48674 % 989-636-1000 Web:
www.dow.com
Lead-free solder paste.
face finishes. SHENMAO’s high-reliability series solder sphere has excellent thermal and impact reliability.
It can be used in a wide range of solder applications with various sizes from 2 to 30 mil (50 to 760 µm). SM-901W water-based, no-clean, liquid flux
is rosin and resin-free. It is designed for lead-free and tin-lead wave soldering. SM-901W contains low solid contents, including a special organic ac- tivator to improve solderability and reduce flux residue. The SMCW series cleaner is designed to remove flux residues and other smudges. Features include: excellent defluxing per-
formance on power electronics and PCBs; halogen- free; excellent cleaning; nontoxic with no flash point; and nonflammable and safe on any cleaning
equipment. Contact: SHENMAO America, Inc., 2156
Ringwood Avenue, San Jose, CA 95131 % 408-943-1755 fax: 408-684-5477
E-mail:
usa@shenmao.com Web:
www.shenmao.com
NT100Ge
Solder Smarter A seamless replacement for SN100C®
Compete at a higher level with NT100Ge. Available in solder bar and wire, NT100Ge has an identical chemical composition and is a seamless drop-in replacement for the well-known SN100C® solder. Produced with the highest quality raw materials and delivering the industry’s best price-performance ratio, NT100Ge lowers cost of ownership, raises competitiveness and produces high-integrity interconnects.
Additional solder alloys: SAC305 / SAC0307 / Sn63 / 99C / NT100GeX
www.nathantrotter.com
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