Electrochemical microfabrication by laser-enhanced photothermal processes

Gutfeld, R. J. von; Sheppard, Keith

doi:10.1147/rd.425.0639

Cited by 32 publications

(25 citation statements)

References 23 publications

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“…The result of copper deposition from solutions with polyols, taking into account the potentials in Table 1, contradicts the theory of thermal activation of coppering with a laser beam [2,7].…”

Section: Discussionmentioning

confidence: 99%

“…7). The theory of von Gutfeld [7] and Kordas conclusions [2] of the thermal nature of laser-induced plating gives no explanation of these effects or brings them to the influence of the thermal factor. Meanwhile, simple calculations show that the thermal factor does not fully explain the result.…”

Section: Discussionmentioning

confidence: 99%

“…According to the hypothesis of the photoeffect, the potential shift will lead to a local increase in the difference of potentials only at the radiated field on the surface of the metal, thus, to the local deposition of the metal on the formed nuclei, and nucleation in the solution will not proceed. If , then due to kinetic limitations the reaction will not proceed with a noticeable rate; the increase of this value according to the Butler-Folmer equation [7] will increase the deposition reaction rate and the thickness and conductivity of the tracks. This correlates with the experimental results: among all reducing agents the use of ethanol ( = +0.06 V, Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Von Gutfeld [5][6][7] and Kordas et al [2] explain this effect by exclusively a thermal factor (increase the reaction rate of metal reduction with heat), as well as mixing the solution. In the experiments of von Gutfeld the laser beam was focused at the interface of copper electrode-copper sulfate solution.…”

Section: Introductionmentioning

confidence: 99%

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Laser-induced copper deposition with weak reducing agents

et al. 2013

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The study showed that alcohols with 1,2,3,5,6 hydroxyl groups can be used as reducing agents for laser-induced copper deposition from solutions (LCLD). Multiatomic alcohols, sorbitol, xylitol, and glycerol, are shown to be effective reducing agents for performing LCLD at glass-ceramic surfaces. High-conductivity copper tracks with good topology were synthesized. The work determines the regularity of changes in properties of metallic deposits depending on the reducing potential of the polyol.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Laser-induced copper deposition with weak reducing agents

et al. 2013

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“…4. For this application silicon shows a similar behavior in terms of the achieved surface structure as Al 2 O 3 TiC (von Gutfeld and Hodgson 1982;von Gutfeld and Sheppard 1998). For this reason and because of easier preparation, silicon samples were tested.…”

Section: Chemical Etching Enhanced Laser Ablationmentioning

confidence: 99%

Nano-texturing of magnetic recording sliders via laser ablation

et al. 2009

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To increase the storage density of hard disk drives, the flying height of the slider needs to be reduced to \10 nm. This requires super-smooth surfaces of the disk and slider. As the roughness decreases, stiction and adhesion are found to increase substantially leading to failures of the head/disk interface. Texturing the slider surface is a well-known approach to this issue. In this study we investigated laser ablation as a potential process for texturing magnetic recording sliders. It was found that straight laser machining caused unwanted re-deposition of material. These deposits could be significantly reduced by using a chemical etching enhanced laser process.

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Direct Surface Patterning from Solutions: Localized Microchemistry Using a Focused Laser

Lachish-Zalait

Zbaida

Klein³

et al. 2001

Adv. Funct. Mater.

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A method for creating microscale‐patterned surfaces by direct‐write lithography is described. A tightly focused, low‐power infrared laser beam is applied to a homogeneous precursor solution containing soluble reagents. When the laser is focused directly at a glass–solution interface, it initiates the local precipitation of a solid product that attaches firmly to the substrate. Operating the laser momentarily forms isolated spots, whereas moving the microscope stage or the laser spot draws continuous lines. The method has been demonstrated for metallic silver and gold, for oxidized copper, and for molybdenum disulfide, suggesting a broad range of suitable materials. Silver patterns were further modified by chemical reactions. Their morphology and physical properties can be altered during deposition by the use of capping agents, which may provide an onset for further functionalization.

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Electrochemical microfabrication by laser-enhanced photothermal processes

Cited by 32 publications

References 23 publications

Laser-induced copper deposition with weak reducing agents

Laser-induced copper deposition with weak reducing agents

Nano-texturing of magnetic recording sliders via laser ablation

Direct Surface Patterning from Solutions: Localized Microchemistry Using a Focused Laser

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