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はんだドロスのリサイクル

ウェーブはんだを使ってプリント基板を組み立てたことのある人なら誰でも、溶けたはんだの滑らかな表面にたまる金属の塊のような層について知っている。

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はんだプリフォームによるQFNボイド問題の解決

Folks, Rob heads to Guadalajara to solve the QFNvoiding problem…… As Rob sat on the airplane, he was excited to go to GDL (Guadalajara, Mexico) to help solve the voiding

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QFN Reliability in SMT Electronics Assembly

Folks, Let's look in on Rob: Rob looked at the new photo of Patty and their twin sons Peter and Michael.What a handful those two 18 month-olds were.Just like their mother!Rob was still pinching

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はんだ粉末:IPC「タイプ」と表面積

Solder powder particle size and shape impacts the functionality of solder paste in many ways: printing/dispensing/dipping; solderballing; graping; voiding; tack and so

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RoHS指令後の電子機器における錫と銀の使用

皆さん、先日の投稿で、鉛フリーはんだの溶融温度が高いため、リフローはんだ付けの温度が高くなり、鉛フリーはんだ付けではより多くの電力を使用する必要があることを述べました。

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Is my unused indium sulfamate plating bath worth anything?

If you are left with an indium sulfamate plating bath or solution that you no longer use or need, you may have wondered what to do with it. It may be surprising to know that the indium plating bath

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Colored Fluxes: Not Child’s-Play

One of the first activities any child enjoys, once they can manipulate things, is usingpaints and crayons to color pictures.Stay with me: there's a reason for this introduction. In the lastsix

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A New Low-Temperature Metallization Paste For Interconnecting Thin-Film Solar Cells

Last week I spent some time in the Advanced Materials and Process Development Lab with Eric Bastow, verifying the printing characteristics of our newest low temp metallization paste LT-918.Due to its

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Tin-Silver (SnAg) Solder Alloy for Stringing and Bussing Solar Modules

TypicalTabbing Ribbon Solders Only a few solder alloys have become common, industry-wide, among solarmodule assemblers, and those can be pared down into three categories: BiSn alloys (58Bi42Sn,

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SMTリフロー工程の許容範囲:はんだペーストの最大勾配と傾斜率(または平均勾配)

Included in a solder paste‘s Product Data Sheet, among other things, are general guidelines which aid the customer in designing an SMT reflow profile. The data sheet gives general

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AuSn高温はんだリフローのフラックス評価

最近の試験結果によると、はんだフラックスは高いリフロー温度(450℃以上)に対応し、フラックス残渣の目視結果も予想以上に良好である!はんだフラックスは従来

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表面実装電子機器組立におけるはんだ不足の解決

Solder starvation is a serious electronics assembly issue – with a very simple solution. Solder starvation occurs when adequate volumes of solder are not available to effect a perfectly-shaped

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Humidity and Solder Paste Do Not Mix

Unbeknowst to me, the refrigerator where I store my solder paste and fluxes that I use for SIR (Surface Insulation Resistance) testing was being moved. One of my colleagues showed up at my desk with

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Lead Use on the Rise, Bismuth Supplies Secure: Solder Alloy Considerations

Based on a recent post I published regarding the use of bismuth (Bi)in solder alloys, John writes: "If Bismuth comes from the production of Pb, and if the use of Pb is being reduced, won’t

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Bismuth Solder Alloy Follow On

Folks, A few people asked some questions after my last post on bismuth solders.Here they are: 1. The low melting point of these solders is encouraging.What are realistic field use conditions? Bismuth

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スズ・ビスマス系はんだの時代が到来したのか?

Folks, When the industry was preparing to transition to lead-free solders almost ten years ago (can it have been that long), tin-bismuth solders were serious candidates.Their low melting point, of

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ニチノールにはんだ付けする最良の方法は?

Nitinol (a nickel titanium alloy) has become a very important material, especially in the medical world. It is often necessary to "attach" Nitinol to another piece of Nitinol or some other

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鉛フリーはんだ付けにおける錫ウィスカーの不具合を求めて

Folks, In a recent post, I shared my perspective on the pluses, minuses and neutral aspects of lead-free solder assembly.In the minus category, I listed tin whiskers.A few people commented that tin

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ITO (Indium-Tin Oxide) Sputtering Target Reclaim/Recycling

ITO is one of the materials that makes the magic of flat panel displays (monitors, TVs, etc.) possible. When sputtered on in a thin layer, it acts as a transparent conductive film. However, the

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エレクトロマイグレーション(EM)と電気化学的マイグレーション(ECM)

I was asked this week to contribute to the upcoming IPC handbook (IPC-CH-65 HDBK) on the section on contamination and its effects on printed wiring assemblies (PWA’s). There is a clear crossover of

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Compatibility of Conformal Coatings versus No-Clean Solder Paste Flux Residues: When To Clean?

Conformal coating compatibility with no-clean flux residues has been a major topic for years – becoming even more popular recently with companies looking to cut manufacturing costs and

インジウムでは、今日、明日、そして未来の課題に対する高度なエレクトロニクス組立材料のソリューションを研究、開発、製造しています。