New SMT Equipment: insufficient wetting qfn (141)

Automatic solder paste printer GKg G9+

Automatic solder paste printer GKg G9+

New Equipment | Assembly Services

G9 + automatic vision printing machine is a new product for SMT high-end application field, which can perfectly meet the process requirements of 03015, 0.25pich and other fine spacing, high precision and high speed. Introduction to standard function

KingFei SMT Tech

MPM® Edison Next Generation Scalable SMT Printer

MPM® Edison Next Generation Scalable SMT Printer

New Equipment | Printing

Unparalleled throughput and accuracy in an advanced next generation scalable printer platform. The MPM Edison™ stencil printer is ideally suited for the growing Automotive and Smart Device manufacturing markets.  The Edison printer i

ITW EAE

Electronics Forum: insufficient wetting qfn (115)

QFP wetting

Electronics Forum | Mon Nov 12 01:18:29 EST 2007 | sin4d

Hi, ALL I experience some QFP with wetting issue on the heel of the lead. There is no fillet wetting on the heel which causes reject bt the customer, but not all the QFP. Could anyone pls help what is the causes of this problem, it is due to oxidati

BGA non wetting

Electronics Forum | Tue Sep 14 21:03:42 EDT 2010 | genesan

Hi Sir, The diameter of the aperature is 17mil and thickness 6mil and since we are using Solder Paste Inspection i believe that should have a good paste deposit on this pad.Let say if no good paste it will more create insufficient solder which X-RAY

Industry News: insufficient wetting qfn (36)

MIRTEC TO EXHIBIT A NEW INSPECTION SYSTEM WITH THE PERFECT INSPECTION SOLUTION AT NEPCON CHINA 2017

Industry News | 2017-04-24 19:04:48.0

This year, MIRTEC will launch several new inspection machines equipped new cutting-edge technologies. MIRTEC is proud to be promoting these new machines in booth #1J10 at NEPCON China 2017, one of the biggest technical exhibitions of SMT and EMA, from April 25-27 at the Shanghai World EXPO Exhibition & Convention Center. MIRTEC’s new machines have been developed under a concept, ‘Perfect Inspection Solution’. This is an inspection concept involving the combination of 3D, 2D, and side-camera inspection.

MIRTEC Corp

SMTA International to Address QFN Assembly & Reliability

Industry News | 2011-09-14 12:04:43.0

The SMTA announced a session on QFN Assembly and Reliability will take place on Tuesday, October 18 during their annual conference, SMTA International, in Ft. Worth, Texas. Andrew Mawer of Freescale Semiconductor will chair the session and Viswam Puligandla, Ph.D., Nokia (Retired) will co-chair.

Surface Mount Technology Association (SMTA)

Technical Library: insufficient wetting qfn (7)

Humitector™ Type 2 Non-Reversible Humidity Indicator Cards from Clariant help assure the integrity of moisture-sensitive surface-mount devices

Technical Library | 2021-02-20 00:55:47.0

Customers must be able to rely on accurate humidity indication as an assurance of SMD quality and fitness for processing and use. Without it, they might accept SMDs from suppliers that have already been irreparably damaged by moisture during storage or transit. Or, they might approve for processing SMDs that have been improperly or insufficiently heat-dried. Beyond the processing questions, there are financial questions: Where did the dry pack problems originate and who--supplier, customer, shipper--is financially responsible for the damaged SMDs? In response, Clariant, the originator of the color change humidity indicator card, and a member of the JEDEC's Subcommittee 14.1, "Reliability and Test Methods for Packaged Devices," created a new "non-reversible" halogen and cobalt dichloride free humidity indicator card. This HIC combines two reversible indicators (5% and 10%) with a new non-reversible (60% RH) indicator spot. (Figure 1) The 5% and 10% reversible spots work the way similar indicators do: they change color from blue (dry), to lavender, to pink (wet) to indicate humidity exposure at the indicated levels. If humidity levels drop, they will gradually revert back to blue.

Clariant Cargo & Device Protection

The Risk And Solution For No-Clean Flux Not Fully Dried Under Component Terminations the Risk And Solution For No-Clean Flux Not Fully Dried Under Component Terminations

Technical Library | 2020-11-24 23:01:04.0

The miniaturization trend is driving industry to adopting low standoff components or components in cavity. The cost reduction pressure is pushing telecommunication industry to combine assembly of components and electromagnetic shield in one single reflow process. As a result, the flux outgassing/drying is getting very difficult for devices due to poor venting channel. This resulted in insufficiently dried/burnt-off flux residue. For a properly formulated flux, the remaining flux activity posed no issue in a dried flux residue for no-clean process. However, when venting channel is blocked, not only solvents remain, but also activators could not be burnt off. The presence of solvents allows mobility of active ingredients and the associated corrosion, thus poses a major threat to the reliability. In this work, a new halogen-free no-clean SnAgCu solder paste, 33-76-1, has been developed. This solder paste exhibited SIR value above the IPC spec 100 MΩ without any dendrite formation, even with a wet flux residue on the comb pattern. The wet flux residue was caused by covering the comb pattern with 10 mm × 10 mm glass slide during reflow and SIR testing in order to mimic the poorly vented low standoff components. The paste 33-76-1 also showed very good SMT assembly performance, including voiding of QFN and HIP resistance. The wetting ability of paste 33-76-1 was very good under nitrogen. For air reflow, 33-76-1 still matched paste C which is widely accepted by industry for air reflow process. The above good performance on both non-corrosivity with wet flux residue and robust SMT process can only be accomplished through a breakthrough in flux technology.

Indium Corporation

Videos: insufficient wetting qfn (5)

I.C.T Lyra Series Reflow Oven with CBS Function

I.C.T Lyra Series Reflow Oven with CBS Function

Videos

Lyra Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board

Dongguan Intercontinental Technology Co., Ltd.

NF120(200 nano resolution) X-ray Inspection System

NF120(200 nano resolution) X-ray Inspection System

Videos

#Xray#Inspection#SEC Nano-focus Tube of 200 nano resolution which is specialized for sub-micron defects of Semiconductor Packaging, Wafer Level Packaging(WLP). -Non-destructive Analysis System -High-Resolution Image with Dual Type CTs -Application

SEC

Career Center - Jobs: insufficient wetting qfn (2)

Senior Assembler

Career Center | Oldsmar, Florida USA | Maintenance,Production

Job Description: • Uses microscope to verify correct part placement and orientation, manually align parts before soldering and perform post re-flow inspection and touch-up. • Able to identify and touch up poor wetted solder joints, solder voids / i

intiGrow

Assembler 2 – IPC 610 – 1st Shift

Career Center | Oldsmar, Florida USA | Engineering,Maintenance,Production

Job Title: Assembler 2 – IPC 610 – 1st Shift Address: 3655 Tampa Rd, Oldsmar FL 34677 Duration: 1 year Pay Rate: $15-$18 Hours: 9/80 schedule Monday – Thursday 6:00AM – 3:30PM, Friday 6:00AM to 2:30PM Job Description: Use microscope to verify

Lockheed Martin Corporation

Career Center - Resumes: insufficient wetting qfn (3)

my cv

Career Center | Botevgrad, Sofia Bulgaria | Engineering,Production,Quality Control,Research and Development,Sales/Marketing

AOI - Omron RNS/RNS_ptH, VI3000, Marantz 22X IPC-610D Class 3, Pb/Pb free process, 5S, FMEA, MSA, PPAP, SPC, CPK, 6Sigma, lean manufacturing, Quality management, ISO/TS 16949 ,ISO 9001,ISO 14 001

my cv

Career Center | Botevgrad, Sofia Bulgaria | Engineering,Production,Quality Control

AOI - Omron RNS_ptH, RNS-LS, VT-WIN2 VI3000 Marantz 22X IPC 610D certified ISO 9001-2008, etc automotive standards ROHS

Express Newsletter: insufficient wetting qfn (147)

Partner Websites: insufficient wetting qfn (29)

Basic Requirements for Reflow Soldering Oven-News-Reflow oven,SMT Reflow Soldering Oven-cmsadmin

| http://etasmt.com/cc?ID=te_news_bulletin,13161&url=_print

. Reflow soldering oven characteristics Basic requirements for reflow soldering ovne: Proper heat 2. Good wetting; 3. Proper solder joint size and shape; 4

5 Common Solder Mistakes and How to Resolve Them

| https://www.eptac.com/blog/5-common-solder-mistakes-and-how-to-resolve-them

: What causes insufficient wetting in soldering? A: Insufficient wetting refers to solder that doesn’t spread evenly across the surface of the joint or


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