Basic information about Pcba products.
Model: FR4 1.6mm / 2.0mm / 2.4mm HAL lead-free
Product Name: KEYBOARD_LCD_V1.1
Type: rigid board
Material: Glass fiber epoxy resin
Flame retardant performance: V0
Pcb processing technology: electrolytic aluminum foil
Pbb plate specification model: four layers FR4, plate thickness 1.6MM, copper thickness 1OZ, OSP process, green oil white word, impedance control, single piece size 160*80MM
Insulation material: metal composite
Packing: red anti-static foam, a roll of 5
Production process: lead-free process
made in China
Product process description:
Solder paste requirements: Ag0.3/Cu0.7/20-38uM
Furnace experiment: All plastic molded patch materials are subjected to reflow soldering experiments.
Welding method: machine + manual welding
1: The temperature of the soldering iron is controlled between 330 °C and 350 °C.
2: Connection can not be welded, left and right skew and high
3: The tin point should be full and bright, and there should be no sharpening, less tin, bubble holes and too much tin.
4: LCD double-sided tape attachment method refers to the following figure, do not stick too tight before testing OK. When there is a defective product, it is easy to damage the screen when the LCD screen is too tight.