Used SMT Equipment | In-Circuit Testers
Rohde & Schwarz CMU200 Loaded with Options THIS UNIT INCLUDES OPTIONS: U65 B85 B41 B12 K21 K22 K22 K23 K24 K29 K29 B88 B52 B52 B17 K42 K43 K43 K45 K83 K84 B95 B54 B54 B21 B83 K92 K88 K87 K85 R&S CMU200 Universal R
Used SMT Equipment | In-Circuit Testers
Rohde & Schwarz CMU200 Loaded with Options THIS UNIT INCLUDES OPTIONS: B12-B21-B54-B56-B68-B96-K16-K17-K20-K21-K22-K23-K24-K29-K42-K43-K47-K48-K53-K57-K58-K59-K61-K62-K63-K64-K65-K66-K67-K68-U99-U65 Rohde & Schwarz CMU200 Universal Radio Commun
Used SMT Equipment | In-Circuit Testers
Rohde & Schwarz CMU200 Loaded with Options THIS UNIT INCLUDES OPTIONS: B12,B21,B54,B56,B68,B96,U99.U65,K16,K17,K20,K21,K22,K23,K24,K29,K42,K43,K47,K48,K53,K57,K58,K59,K61,K62,K63,K64,K65,K66,K67,K68 Rohde & Schwarz CMU200 Universal Radio Commun
Used SMT Equipment | In-Circuit Testers
R&S CMU200 Universal Radio Communication Tester - The multiprotocol tester for today's mobile radio networks. Providing SPEED, ACCURACY and MODULARITY. Test Equipment Connection prices start at $18,000 for a basic unit, additional options are extr
Used SMT Equipment | General Purpose Test & Measurement
Rohde and Schwarz ZVB-8 Vector Network Analyzer AUCTION ITEM - WWW.XLINEASSETS.COM Major Liquidation From HP/Palm - California Other Equipment Available: ANRITSU ME7873F CDMA TRX/PERFORMANCE TEST SYSTEM WITH LTE UPGRADE ROHDE AND SCHWARZ TS
Used SMT Equipment | In-Circuit Testers
Tester for immediate sales - Please offer in separate item. AGILENT 8960 COMMUNICATION TESTER E5515B AGILENT 8960 COMMUNICATION TESTER E5515C AGILENT SIGNAL ANALYZER 35670A AGILENT SIGNAL GENERATOR E4432B HP SIGNAL GENERATOR E4432B HP SPECTRUM ANALY
Technical Library | 2019-09-24 15:41:53.0
This paper focuses on three different coating material groups which were formulated to operate under high thermal stress and are applied at printed circuit board manufacturing level. While used for principally different applications, these coatings have in common that they can be key to a successful thermal management concept especially in e-mobility and lighting applications. The coatings consist of: Specialty (green transparent) liquid photoimageable solder masks (LPiSM) compatible with long-term thermal storage/stress in excess of 150°C. Combined with the appropriate high-temperature base material, and along with a suitable copper pre-treatment, these solder resists are capable of fulfilling higher thermal demands. In this context, long-term storage tests as well as temperature cycling tests were conducted. Moreover, the effect of various Cu pre-treatment methods on the adhesion of the solder masks was examined following 150, 175 and 200°C ageing processes. For this purpose, test panels were conditioned for 2000 hours at the respective temperatures and were submitted to a cross-cut test every 500 h. Within this test set-up, it was found that a multi-level chemical pre-treatment gives significantly better adhesion results, in particular at 175°C and 200°C, compared with a pre-treatment by brush or pumice brush. Also, breakdown voltage as well as tracking resistance were investigated. For an application in LED technology, the light reflectivity and white colour stability of the printed circuit board are of major importance, especially when high-power LEDs are used which can generate larger amounts of heat. For this reason, a very high coverage power and an intense white colour with high reflectivity values are essential for white solder masks. These "ultra-white" and largely non-yellowing LPiSM need to be able to withstand specific thermal loads, especially in combination with high-power LED lighting applications. The topic of thermal performance of coatings for electronics will also be discussed in view of printed heatsink paste (HSP) and thermal interface paste (TIP) coatings which are used for a growing number of applications. They are processed at the printed circuit board manufacturing level for thermal-coupling and heat-spreading purposes in various thermal management-sensitive fields, especially in the automotive and LED lighting industries. Besides giving an overview of the principle functionality, it will be discussed what makes these ceramic-filled epoxy- or silicone-based materials special compared to using "thermal greases" and "thermal pads" for heat dissipation purposes.
Used SMT Equipment | General Purpose Test & Measurement
Description The Agilent 33250A is our highest performance function generator. With 11 standard waveforms plus pulse and arbitrary waveforms - it is the most frequency stable and lowest distortion function generator in its class Key Features & Spec
Industry Directory | Consultant / Service Provider / Manufacturer
Lepla srl electronic contract manufacturer, specialized in the SMT & THT Electronic Cards Assembling, Wiring Assembling Harness, In-Circuit, Parametric and Functional Testing.
Industry Directory | Manufacturer
Multilayer PCB、Metal base PCB、Hi-Tg heavy copper foil PCB、Flat winding multilayer PCB、High frequency PCB、Mixed dielectric base high frequency multilayer PCB. Developing and manufacturing all kinds of