Search found 5 matches

by AuTIsNDoNG
Fri Aug 21, 2020 9:09 am
Forum: Electronics
Topic: Anyone who knows the types of PCB inspection??
Replies: 3
Views: 349

Anyone who knows the types of PCB inspection??

What inspection should be carried out on PCB before it is released by the manufacturing factory?
by AuTIsNDoNG
Tue Aug 11, 2020 7:51 am
Forum: Electronics
Topic: Dielectric strength of PCB perpendicular vs parallel
Replies: 0
Views: 145

Dielectric strength of PCB perpendicular vs parallel

Laminate suppliers only list one "Dielectric Strength" so I assumed that orientation didn't matter. Then I discovered that there are two voltage breakdown tests.  Test method IPC TM-650 2.5.6.2 is used for testing perpendicular to the plane and 2.5.6 parallel to the plane.  The 2.5.6 test appears to...
by AuTIsNDoNG
Tue Jul 28, 2020 10:03 am
Forum: Electronics
Topic: PCBA for USB-C receptacle??
Replies: 0
Views: 160

PCBA for USB-C receptacle??

Hi, Last time I ordered some circuit boards in Shenzhen China, I decided to solder by myself, and there is a small USB-C, It has 4 main legs which should be soldered (I think), however the length is of such that they don't come close to clearing a 0.8mm PCB thickness. On the attached pictures you ca...
by AuTIsNDoNG
Fri Jul 24, 2020 9:38 am
Forum: Electronics
Topic: Adding CCFL light or LED backlight to a 6 digit/ 7 segment LCD display
Replies: 2
Views: 278

Adding CCFL light or LED backlight to a 6 digit/ 7 segment LCD display

Hello, Is possible to add CCFL light or LED backlight to a 6 digit/7 segment LCD display which has no backlight from the beginning?  I have seen some article about doing that many years ago (could not find now...) by removing the reflective shield layer from the backside, not sure if I should separa...
by AuTIsNDoNG
Wed Jul 22, 2020 7:57 am
Forum: PCB Fabrication
Topic: How to draw a drill hole on the circuit board?
Replies: 1
Views: 573

How to draw a drill hole on the circuit board?

Hello guys, I get into trouble: I had to drill a hole in my board, just a physical hole, without electrical properties, not the kind of pad. At first, because I didn't understand, so. 1. I drew a circle on the schematic drill drawing layer to represent the drill hole, but after generating the PCB, I...