New SMT Equipment: white solder mask turns tellow (2)

Quick turn PCB Prototypes

Quick turn PCB Prototypes

New Equipment | Components

1). Size: 45*140mm/1 up 2). Layer count: 2 Layer, 20 μm PTH 3). Thickness: 1.6mm +/- 10% 4). Copper weight(Finished): 35 μm 5). SMOBC: LPI Green solder mask/ White legend 6). Holes: 0.4mm minimum, 4/4 mil track/space 7). Pads finish: HASL 8).

Bicheng Enterprise Company

PCB Prototype Quick Turn Circuit Board Services

PCB Prototype Quick Turn Circuit Board Services

New Equipment | Prototyping

Printed Circuit Board Prototypes. PNC Specializes in Quick Turn Prototype PCBs starting at 24 Hour turn times without sacrificing Quality. We have been the Leader of quick turn for 45 Years using the latest Manufacturing processes and equipment. Ou

PNC Inc.

Electronics Forum: white solder mask turns tellow (22)

Re: white residue after wash

Electronics Forum | Fri Apr 03 08:22:36 EST 1998 | Scott Cook

| At this moment in time we are using water soluble solder paste on our PCBs these are cleaned using water only, agitated with ultrasonics. After drying a white/grey residue is left around solder joints. Reflow profile is fine and a reliable wash pro

Solder mask discoloration

Electronics Forum | Wed Aug 17 22:41:37 EDT 2005 | davef

Peter are you having fun with solder masks erwat? We saw this years ago with LPI solder masks. It shows occasionally with other masks. We agree with Russ. If nothing [eg, alcohol, flux thinner, acetonitrile, or water] dissolves the haze, then it

Industry News: white solder mask turns tellow (2)

Aluminum and FR4 PCBs for LED Lighting from Super PCB

Industry News | 2018-11-27 13:54:13.0

Super PCB, a single source for high-quality printed circuit boards (PCBs), is pleased to offer aluminum and FR4 PCBs for LED lighting. The company can produce both prototypes and mass production for LED lighting applications.

Super PCB

Immersion gold VS Plating gold

Industry News | 2019-05-16 01:27:23.0

There are several surface treatment for PCB board: bare board (no treatment on the surface), rosin board, OSP (Organic Solderability Preservatives), HASL (lead tin, lead-free tin), plating gold, immersion gold, etc., these are relatively conscious treatment. Many people can't tell the difference between plating gold and immersion gold, thinking that it is the same thing, it is a big mistake. The following is a brief introduction to the difference between plating gold and immersion gold.

Headpcb

Videos: white solder mask turns tellow (3)

PNC - Manufacturer of Printed Circuit Board from PCB Design, Layout, PCB fabrication & PCB Assembly.

PNC - Manufacturer of Printed Circuit Board from PCB Design, Layout, PCB fabrication & PCB Assembly.

Videos

Manufacturer of Printed Circuit Board from PCB Design, Layout, PCB fabrication & PCB Assembly.

PNC Inc.

PNC - Manufacturer of Printed Circuit Board from PCB Design, Layout, PCB fabrication & PCB Assembly.

PNC - Manufacturer of Printed Circuit Board from PCB Design, Layout, PCB fabrication & PCB Assembly.

Videos

Manufacturer of Printed Circuit Board from PCB Design, Layout, PCB fabrication & PCB Assembly.

PNC Inc.

Express Newsletter: white solder mask turns tellow (999)


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