Progettazione PCB

Usare un via per rinforzare il connettore a montaggio superficiale sul pad è una pratica buona o cattiva??

There are some reasons for putting a via in the pad, but strengthening a connector is a new practice for me.

The weakest part of an SMD pad is that the copper could delaminate from the fiberglass, and lift off the PCB itself. Anything you could do to prevent that would help, including making the pad larger or putting a via in the pad itself.

But you have to be careful since putting a via in the pad can cause other issues.

  • The first problem is that it might make the pads not flat enough, so a connector pin won’t make good contact with the pad and thus not get soldered well.
  • The second issue is that the solder could get wicked down the via and leave nothing left for the connector pin. This isn’t a big issue if you are hand soldering, but can be a problem when doing it with automation.

Honestly, if connector strength is an issue, then it is advisable to seriously consider going to a through-hole connector or some type of connector, which gets strength from some other ways. Such as a connector that gets bolted to the chassis itself (and stress on the PCB is minimal).

Leggi di più: Assemblaggio SMT

#PCB Design #PCB Assembly

Oliver Smith

Oliver è un ingegnere elettronico esperto specializzato nella progettazione di PCB, circuiti analogici, sistemi integrati, e prototipazione. La sua profonda conoscenza spazia dall'acquisizione di schemi, codifica del firmware, simulazione, disposizione, analisi, e risoluzione dei problemi. Oliver eccelle nel portare i progetti dall'ideazione alla produzione di massa utilizzando il suo talento nella progettazione elettrica e la sua attitudine meccanica.

messaggi recenti

BGA Reballing: An Essential Process in Electronics Repair and Maintenance

BGA reballing emerges as a critical repair technique for modern electronic devices. Al giorno d'oggi, Introduzione di un nuovo prodotto…

1 week ago

What Are PCB Stiffeners? Exploring Their Types, Uses, and Thicknesses

Do you know what PCB stiffeners are? They are widely used in flex and rigid-flex

3 weeks ago

Why PCB Warpage Happens and How You Can Prevent It?

Nel processo di produzione dei PCB, PCB warpage is a common problem that manufacturers would encounter.

1 month ago

What Is a PCB Netlist? Tutto ciò che devi sapere è qui

In the world of printed circuit board design and manufacturing, precision and accuracy are paramount.

2 months ago

What Is Solder Wetting and How to Prevent Poor Wetting?

Soldering is a cornerstone technique in electronics assembly, it's used to connect electrical pieces and

2 months ago

7 Critical Techniques to Improve PCB Thermal Management

Al giorno d'oggi, electronic products are both compact and lightweight while performing a variety of functions. Questo…

2 months ago