Electronics Forum: transition temperature (Page 1 of 6)

Tg - Glass transition temperature

Electronics Forum | Thu Jan 20 16:06:38 EST 2000 | Mike Naddra

Regarding glass transition , does anyone have expierance glass wiht transition temperature specification , such as what are the detrimental effects of exceeding the Tg , how long over the glass transition temperature ,if any , is acceptable. Tg of di

Re: Tg - Glass transition temperature

Electronics Forum | Fri Jan 21 14:51:08 EST 2000 | Dave F

Mike: I�d hate to see you making design decisions, based solely on the discussion here, but that this would be an impetus to consult IPC-D-279, "Design Guidelines ... " and take a course on designing reliable boards. Werner Engelmaier (Engelmaier

Die temperature exceed Tg temperature

Electronics Forum | Tue Dec 19 07:58:29 EST 2006 | ccgooi

Our company is assembly flip chip on flex, we have new design of flip chip which die temperature will increase until 145 degree C after test run the end product, however the Tg,glass transition temperature is 148. Will this case causing any reliabil

High temperature soldering

Electronics Forum | Fri Apr 24 14:34:14 EDT 1998 | Ed Holton

Looking for anyone who has experience with high temperature soldering. Need to determine why solder joints are failing. Thermocycling of unit is -40C to +140C, 30 minute dwell time, 10 sec. transition time Your help is appreciated Ed Holton Hella E

Re: High temperature soldering

Electronics Forum | Fri Apr 24 15:21:08 EDT 1998 | Earl Moon

| Looking for anyone who has experience with high temperature soldering. Need to determine why solder joints are failing. Thermocycling of unit is -40C to +140C, 30 minute dwell time, 10 sec. transition time | Your help is appreciated | Ed Holton |

Re: High temperature soldering

Electronics Forum | Fri Apr 24 20:33:06 EDT 1998 | D.Lange

| Looking for anyone who has experience with high temperature soldering. Need to determine why solder joints are failing. Thermocycling of unit is -40C to +140C, 30 minute dwell time, 10 sec. transition time | Your help is appreciated | Ed Holton |

T sub G

Electronics Forum | Tue Aug 25 16:28:11 EDT 1998 | Al Knudson

Hello, Our PWB supplier has requested that a change in the laminate material to reduce the incidence of pad lifting. The standard laminate materials (Polyclad PCL-FR-226 with a glass transition temperature of 135 C) have greater z-axis thermal expan

DoE on post-reflow PCB - warp

Electronics Forum | Mon Jul 01 17:22:27 EDT 2002 | Daan Terstegge

Tg = glass transition temperature, the temperature at which the glass-epoxy starts losing it's properties as a solid material. daan

High TG?

Electronics Forum | Mon Nov 13 13:15:51 EST 2006 | CK the Flip

Tg, by definition is the glass transition temperature for materials. It's the temperature where your board goes from rigid to "rubbery". Not sure if a higher Tg would help prevent delam. One of the PCB experts of the forum might know this.

PCB bent due to mechanical force

Electronics Forum | Wed May 15 16:18:58 EDT 2019 | stephendo

Look up the glass transition temperature (Tg) for the PCB material. If you get the PCB above this temperature it will become quite soft. If it is a populated board remember to take any moisture sensitive devices on it into consideration.

  1 2 3 4 5 6 Next

transition temperature searches for Companies, Equipment, Machines, Suppliers & Information

Global manufacturing solutions provider

Component Placement 101 Training Course
fluid dispenser

Reflow Soldering 101 Training Course
Equipment Auction - Eagle Comtronics: Low-Use Electronic Assembly & Machining Facility 2019 Europlacer iineo + Placement Machine  Test & Inspection: Agilent | Tektronix | Mantis Machine Shop: Haas VF3 | Haas SL-20 | Mult. Lathes

Software programs for SMT placement and AOI Inspection machines from CAD or Gerber.
Selective soldering solutions with Jade soldering machine

High Throughput Reflow Oven
Software for SMT

World's Best Reflow Oven Customizable for Unique Applications


"回流焊炉"